/* ============================================================================
   OneBrain Design System — components.css
   The reusable COMPONENT LAYER. Drop-in classes for the whole system, built on
   the semantic intent tokens in colors_and_type.css. This is what turns the
   package from a token kit into a system you can assemble surfaces from.

   USAGE — load the tokens first, then this file:
     <link rel="stylesheet" href="colors_and_type.css">      (from root)
     <link rel="stylesheet" href="components.css">
   (paths: ../ from preview/, ../../ from ui_kits/app/).

   Every component references SEMANTIC intents (--action-primary, --fb-danger,
   --bg-surface, --elev-2 …), never raw palette hexes — so a light/dark/re-skin
   flows through automatically. Geometry stays cyber-sharp (radius 0, corner-cut
   CTAs); "elevation" is hairline + glow on dark, real shadow on light.

   Sections: 1 Buttons · 2 Pills/Badges/Tags · 3 Forms · 4 Nav · 5 Cards/Data
   · 6 Feedback · 7 Overlays · 8 Reduced-motion.
   Source classes (.btn-tech, .cyber-card, .cyber-pill, .nav-glass) trace to
   onebrain-ai/website global.css; see DESIGN.md §6 + PROVENANCE.md.
   ============================================================================ */

/* ---------------------------------------------------------------------------
   1. BUTTONS
   --------------------------------------------------------------------------- */
/* Primary CTA — corner-cut gradient frame with a dark inner panel (source).
   The corner cut comes from the global --clip-tech token, which is FIXED-size
   (--clip-cut, 12px), NOT percentages — so the gradient frame stays an even
   ~1.5px hairline with tasteful corners at ANY button width (percentage cuts
   balloon into huge diagonal wedges as a button widens). The frame and the
   inner panel reference the one token, so their corners always match. */
.btn-tech {
  position: relative; display: inline-block; border: 0; cursor: pointer;
  clip-path: var(--clip-tech); background: var(--grad-button); padding: 1.5px;
  text-decoration: none; transition: box-shadow var(--dur-fast) ease;
}
.btn-tech-inner {
  display: block; clip-path: var(--clip-tech); background: var(--bg-base);
  padding: 12px 26px; color: var(--color-white);
  font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold);
  text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.85rem;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}
.btn-tech:hover { box-shadow: var(--glow-cta); }
.btn-tech:hover .btn-tech-inner { background: #fff; color: #0a0a12; }
.btn-tech[disabled], .btn-tech:disabled { opacity: var(--disabled-opacity); cursor: not-allowed; box-shadow: none; }
.btn-tech[disabled]:hover .btn-tech-inner { background: var(--bg-base); color: var(--color-white); }

/* Secondary outline + tertiary quiet + destructive — share one mono shape. */
.btn-ghost, .btn-quiet, .btn-danger {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.18em;
  text-transform: uppercase; cursor: pointer; padding: 12px 22px; text-decoration: none;
  box-sizing: border-box; min-height: var(--control-h); background: transparent; border: 1px solid;
  transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast), box-shadow var(--dur-fast);
}
.btn-ghost { color: var(--action-primary); border-color: color-mix(in srgb, var(--action-primary) 40%, transparent); }
.btn-ghost:hover { color: var(--color-white); border-color: var(--action-primary); box-shadow: 0 0 14px color-mix(in srgb, var(--action-primary) 35%, transparent); }
.btn-quiet { color: var(--text-secondary); background: var(--bg-surface); border-color: var(--border-default); letter-spacing: 0.16em; }
.btn-quiet:hover { color: var(--text-primary); background: var(--bg-elevated); border-color: var(--border-strong); }
.btn-danger { color: var(--fb-danger); border-color: var(--fb-danger-bd); }
.btn-danger:hover { color: #fff; background: var(--fb-danger-bg); border-color: var(--fb-danger); box-shadow: 0 0 14px var(--fb-danger-bg); }
.btn-ghost[disabled], .btn-quiet[disabled], .btn-danger[disabled],
.btn-ghost:disabled, .btn-quiet:disabled, .btn-danger:disabled { opacity: var(--disabled-opacity); cursor: not-allowed; box-shadow: none; }

/* Size + width modifiers */
.btn-sm { padding: 8px 16px; min-height: var(--control-h-sm); font-size: 0.7rem; }
/* btn-tech's padding IS its gradient frame thickness (1.5px) — the small
   modifier must keep that thin frame and shrink the inner panel instead, or
   the frame bloats into a thick outline. Higher specificity wins regardless of order. */
.btn-tech.btn-sm, .btn-sm.btn-tech { padding: 1.5px; }
.btn-sm.btn-tech .btn-tech-inner, .btn-tech.btn-sm .btn-tech-inner { padding: 8px 18px; font-size: 0.78rem; }
.btn-block { display: flex; width: 100%; justify-content: center; }
/* Full-width tech CTA: base .btn-tech now carries fixed-size corner cuts, so
   block only needs to stretch the inner panel to fill the width — the gradient
   stays an even hairline frame with the same tasteful corners at any width. */
.btn-tech.btn-block .btn-tech-inner { flex: 1; width: 100%; text-align: center; }

/* ---------------------------------------------------------------------------
   2. PILLS · BADGES · TAGS
   --------------------------------------------------------------------------- */
/* Eyebrow / status pill — HUD kicker with L-bracket ticks + pulsing dot. */
.cyber-pill {
  display: inline-flex; align-items: center; gap: 10px; position: relative;
  padding: 8px 14px; font-family: var(--font-mono); font-size: var(--eyebrow-size);
  letter-spacing: var(--tracking-eyebrow); text-transform: uppercase;
  color: var(--section-accent);
  background: color-mix(in srgb, var(--section-accent) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--section-accent) 30%, transparent);
}
.cyber-pill::before, .cyber-pill::after { content: ''; position: absolute; width: 7px; height: 7px; border: 1px solid currentColor; }
.cyber-pill::before { top: -2px; left: -2px; border-right: 0; border-bottom: 0; }
.cyber-pill::after { bottom: -2px; right: -2px; border-left: 0; border-top: 0; }
.cyber-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: var(--glow-sm); flex: none; }
.cyber-dot.is-pulse { animation: cyber-pulse 1.5s ease-in-out infinite; }
@keyframes cyber-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* Badge / tag / status chip — tinted bg + accent text, per semantic state. */
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--text-secondary);
  background: var(--bg-elevated); border: 1px solid var(--border-default);
}
.badge-success { color: var(--fb-success); background: var(--fb-success-bg); border-color: var(--fb-success-bd); }
.badge-info    { color: var(--fb-info);    background: var(--fb-info-bg);    border-color: var(--fb-info-bd); }
.badge-warning { color: var(--fb-warning); background: var(--fb-warning-bg); border-color: var(--fb-warning-bd); }
.badge-danger  { color: var(--fb-danger);  background: var(--fb-danger-bg);  border-color: var(--fb-danger-bd); }
.badge-count { border-radius: var(--radius-pill); padding: 2px 8px; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; }
.tag {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px;
  font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-tertiary);
  background: var(--action-primary-weak); border: 1px solid var(--border-subtle);
}

/* Chip — INTERACTIVE accent token (wikilink / filter / multi-select). Unlike the
   static .tag, it carries hover glow + an .is-used spent state. Section-accent
   keyed, so it re-tints with the surface accent. (promoted from surface-mobile) */
.chip {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  padding: 7px 11px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em;
  color: var(--section-accent); background: color-mix(in srgb, var(--section-accent) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--section-accent) 32%, transparent);
  transition: background var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast), opacity var(--dur-fast);
}
.chip svg { width: 13px; height: 13px; }
.chip:hover { background: color-mix(in srgb, var(--section-accent) 14%, transparent); box-shadow: 0 0 12px color-mix(in srgb, var(--section-accent) 28%, transparent); }
.chip.is-used { opacity: var(--disabled-opacity); pointer-events: none; }

/* Kbd — keyboard-key / shortcut badge (palettes, decks, tooltips, docs).
   (promoted from surface-desktop) */
.kbd {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  padding: 4px var(--space-2); font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--text-secondary); background: var(--bg-surface); border: 1px solid var(--border-subtle);
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.kbd:hover { color: var(--section-accent); border-color: var(--section-accent); }
.kbd svg { width: 16px; height: 16px; }

/* ---------------------------------------------------------------------------
   3. FORMS  (real, accessible controls — labels, validation, helper, states)
   --------------------------------------------------------------------------- */
.field { display: block; max-width: 520px; margin-bottom: 20px; }
.field-label {
  display: block; margin-bottom: 8px; font-family: var(--font-mono);
  font-size: var(--eyebrow-size); letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--text-secondary);
}
.field-label .req { color: var(--fb-danger); margin-left: 4px; }
.field-help { margin-top: 7px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.04em; color: var(--text-tertiary); }
.field-error { margin-top: 7px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em; color: var(--fb-danger); }

/* Text input, textarea, select — one shared shape. */
.cyber-input {
  width: 100%; box-sizing: border-box; min-height: var(--control-h);
  background: var(--bg-surface); border: 1px solid var(--border-default);
  color: var(--text-primary); font-family: var(--font-mono); font-size: 14px;
  padding: 13px var(--control-pad-x); outline: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.cyber-input::placeholder { color: var(--text-secondary); }
.cyber-input:focus { border-color: var(--border-focus); box-shadow: 0 0 0 1px var(--focus-ring), 0 0 18px color-mix(in srgb, var(--focus-ring) 25%, transparent); }
textarea.cyber-input { resize: vertical; min-height: 96px; line-height: 1.6; }
.cyber-input:disabled { opacity: var(--disabled-opacity); cursor: not-allowed; }
.cyber-input[aria-invalid="true"], .cyber-input.is-invalid { border-color: var(--fb-danger); }
.cyber-input[aria-invalid="true"]:focus, .cyber-input.is-invalid:focus { box-shadow: 0 0 0 1px var(--fb-danger), 0 0 18px var(--fb-danger-bg); }

/* Select — progressive-enhancement custom listbox.
   The closed control shares ONE shape whether it's the native <select> or the
   enhanced .cs-trigger button. cyber-select.js then swaps the OS-native option
   popup (which CSS cannot reach — that bright OS-blue list) for an on-brand
   .cs-list. No JS → the native <select> + caret still works and submits. */
.cyber-select { position: relative; display: block; max-width: 520px; }
.cyber-select select,
.cyber-select .cs-trigger {
  -webkit-appearance: none; appearance: none; width: 100%; box-sizing: border-box;
  min-height: var(--control-h); padding: 13px 40px 13px var(--control-pad-x);
  background: var(--bg-surface); border: 1px solid var(--border-default);
  color: var(--text-primary); font-family: var(--font-mono); font-size: 14px;
  text-align: left; outline: none; cursor: pointer;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.cyber-select select:focus,
.cyber-select .cs-trigger:focus-visible { border-color: var(--border-focus); box-shadow: 0 0 0 1px var(--focus-ring); }
.cyber-select .cs-trigger[disabled] { opacity: var(--disabled-opacity); cursor: not-allowed; }
.cyber-select .cs-value { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* Enhanced: native control kept for form submit / a11y name, taken out of flow. */
.cyber-select select.cs-native {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
/* HUD caret — flips up while the listbox is open. */
.cyber-select::after {
  content: ''; position: absolute; top: 50%; right: 16px; width: 7px; height: 7px;
  border-right: 1.5px solid var(--action-primary); border-bottom: 1.5px solid var(--action-primary);
  transform: translateY(-65%) rotate(45deg); pointer-events: none;
  transition: transform var(--dur-fast) var(--ease-out-expo);
}
.cyber-select.is-open::after { transform: translateY(-30%) rotate(225deg); }

/* The on-brand popup that replaces the OS-native option list. */
.cyber-select .cs-list {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: var(--z-dropdown);
  margin: 0; padding: 6px; list-style: none; max-height: 282px; overflow-y: auto;
  background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3);
  transform-origin: top; transform: translateY(-4px); opacity: 0;
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out-expo);
}
.cyber-select.is-open .cs-list { opacity: 1; transform: none; }
.cyber-select .cs-list[hidden] { display: none; }
.cyber-select .cs-opt {
  position: relative; display: flex; align-items: center; gap: 9px;
  padding: 9px 12px 9px 14px; font-family: var(--font-mono); font-size: 13px;
  color: var(--text-secondary); cursor: pointer; user-select: none;
  transition: background var(--dur-fast), color var(--dur-fast);
}
/* Active (hover / keyboard) — weak accent tint + a 2px accent edge.
   Deliberately NOT a solid accent fill (that OS-blue bar is the bug we're fixing). */
.cyber-select .cs-opt.is-active { background: var(--action-primary-weak); color: var(--text-primary); }
.cyber-select .cs-opt.is-active::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--action-primary);
}
/* Selected — accent text + a check glyph (the check reserves space when hidden,
   so labels stay aligned whether or not a row is the current value). */
.cyber-select .cs-opt.is-selected { color: var(--action-primary); }
.cyber-select .cs-opt .cs-check { flex: none; opacity: 0; color: var(--action-primary); }
.cyber-select .cs-opt.is-selected .cs-check { opacity: 1; }
.cyber-select .cs-opt-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cyber-select .cs-opt.is-disabled { opacity: var(--disabled-opacity); cursor: not-allowed; }

/* Checkbox + radio — appearance:none over real inputs, accent-driven. */
.cyber-check, .cyber-radio {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); user-select: none;
}
.cyber-check input, .cyber-radio input {
  -webkit-appearance: none; appearance: none; margin: 0; width: 18px; height: 18px; flex: none;
  background: var(--bg-surface); border: 1px solid var(--border-strong); cursor: pointer;
  display: grid; place-content: center; transition: border-color var(--dur-fast), background var(--dur-fast);
}
.cyber-radio input { border-radius: 50%; }
.cyber-check input::before {
  content: ''; width: 10px; height: 10px; transform: scale(0); transform-origin: center;
  background: var(--action-primary); transition: transform var(--dur-fast) var(--ease-out-expo);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0, 43% 62%);
}
.cyber-radio input::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--action-primary); transform: scale(0); transition: transform var(--dur-fast) var(--ease-out-expo); }
.cyber-check input:checked, .cyber-radio input:checked { border-color: var(--action-primary); box-shadow: var(--glow-sm); }
.cyber-check input:checked::before, .cyber-radio input:checked::before { transform: scale(1); }
.cyber-check input:focus-visible, .cyber-radio input:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }
.cyber-check input:disabled, .cyber-radio input:disabled { opacity: var(--disabled-opacity); cursor: not-allowed; }

/* Switch — sliding accent thumb on a real checkbox. */
.cyber-switch { display: inline-flex; align-items: center; gap: 12px; cursor: pointer; font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); user-select: none; }
.cyber-switch input { -webkit-appearance: none; appearance: none; margin: 0; position: relative; width: 42px; height: 22px; flex: none; cursor: pointer; background: var(--bg-elevated); border: 1px solid var(--border-strong); transition: background var(--dur-fast), border-color var(--dur-fast); }
.cyber-switch input::after { content: ''; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; background: var(--text-secondary); transition: transform var(--dur-base) var(--ease-out-expo), background var(--dur-fast); }
.cyber-switch input:checked { background: var(--action-primary-weak); border-color: var(--action-primary); }
.cyber-switch input:checked::after { transform: translateX(20px); background: var(--action-primary); box-shadow: var(--glow-sm); }
.cyber-switch input:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }
.cyber-switch input:disabled { opacity: var(--disabled-opacity); cursor: not-allowed; }

/* Range slider — accent track + thumb. */
.cyber-range { -webkit-appearance: none; appearance: none; width: 100%; max-width: 520px; height: 4px; background: var(--bg-elevated); border: 1px solid var(--border-default); outline: none; cursor: pointer; }
.cyber-range::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 16px; height: 16px; background: var(--action-primary); box-shadow: var(--glow-sm); cursor: pointer; }
.cyber-range::-moz-range-thumb { width: 16px; height: 16px; border: 0; background: var(--action-primary); box-shadow: var(--glow-sm); cursor: pointer; }
.cyber-range:focus-visible { box-shadow: 0 0 0 1px var(--focus-ring); }

/* Command composer — the agent input bar (slash affordance + .btn-tech submit). */
.composer { display: flex; align-items: stretch; max-width: 640px; background: var(--bg-surface); border: 1px solid var(--border-default); transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.composer:focus-within { border-color: var(--border-focus); box-shadow: 0 0 22px color-mix(in srgb, var(--focus-ring) 20%, transparent); }
.composer .composer-slash { display: flex; align-items: center; padding: 0 14px; font-family: var(--font-mono); font-size: 16px; color: var(--action-primary); border-right: 1px solid var(--border-default); }
.composer input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--text-primary); font-family: var(--font-mono); font-size: 14px; padding: 14px 12px; }
.composer input::placeholder { color: var(--text-secondary); }
.composer .composer-send { clip-path: var(--clip-tech); background: var(--grad-button); padding: 1.5px; margin: 5px; border: 0; cursor: pointer; }
.composer .composer-send span { display: block; clip-path: var(--clip-tech); background: var(--bg-base); color: #fff; font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.05em; padding: 8px 18px; font-size: 0.78rem; transition: background var(--dur-fast), color var(--dur-fast); }
.composer .composer-send:hover span { background: #fff; color: #0a0a12; }

/* ---------------------------------------------------------------------------
   4. NAVIGATION  (nav-glass · tabs · breadcrumb · pagination)
   --------------------------------------------------------------------------- */
.nav-glass { display: flex; gap: 28px; align-items: center; padding: 14px 22px; background: var(--bg-sunken); border: 1px solid var(--border-default); }
.nav-glass a { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-secondary); text-decoration: none; transition: color var(--dur-fast); }
.nav-glass a .br { opacity: 0; color: var(--action-primary); transition: opacity var(--dur-fast); }
.nav-glass a:hover, .nav-glass a.is-active { color: var(--color-white); }
.nav-glass a:hover .br, .nav-glass a.is-active .br { opacity: 1; }

.cyber-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border-default); }
.cyber-tabs button { position: relative; background: transparent; border: 0; cursor: pointer; padding: 12px 18px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-secondary); transition: color var(--dur-fast); }
.cyber-tabs button::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--action-primary); transform: scaleX(0); transition: transform var(--dur-base) var(--ease-out-expo); }
.cyber-tabs button:hover { color: var(--text-primary); }
.cyber-tabs button[aria-selected="true"], .cyber-tabs button.is-active { color: var(--color-white); }
.cyber-tabs button[aria-selected="true"]::after, .cyber-tabs button.is-active::after { transform: scaleX(1); }

.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-tertiary); }
.breadcrumb a { color: var(--text-secondary); text-decoration: none; transition: color var(--dur-fast); }
.breadcrumb a:hover { color: var(--action-primary); }
.breadcrumb li { list-style: none; display: inline-flex; align-items: center; gap: 10px; }
.breadcrumb li + li::before { content: '/'; color: var(--text-disabled); }
.breadcrumb [aria-current="page"] { color: var(--color-white); }

.pagination { display: flex; gap: 4px; align-items: center; }
/* min-width/height = --control-h (44px touch target; 36px under compact density). */
.pagination a, .pagination button { display: inline-grid; place-content: center; min-width: var(--control-h); height: var(--control-h); padding: 0 12px; background: var(--bg-surface); border: 1px solid var(--border-default); color: var(--text-secondary); font-family: var(--font-mono); font-size: 12px; font-variant-numeric: tabular-nums; cursor: pointer; text-decoration: none; transition: color var(--dur-fast), border-color var(--dur-fast); }
.pagination a:hover, .pagination button:hover { color: var(--text-primary); border-color: var(--border-strong); }
.pagination a:focus-visible, .pagination button:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.pagination [aria-current="page"] { color: var(--text-on-accent); background: var(--action-primary); border-color: var(--action-primary); }

/* Inline text link — gives links an accent signal (the audit gap) via --text-link,
   with an accent underline that brightens on hover. Use on prose <a>. */
.cyber-link { color: var(--text-link); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--text-link) 40%, transparent); transition: color var(--dur-fast), border-color var(--dur-fast); }
.cyber-link:hover { color: var(--text-link-hover); border-bottom-color: var(--text-link); }
.cyber-link:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* ---------------------------------------------------------------------------
   5. CARDS · STATS · TABLE · LIST · AVATAR · EMPTY-STATE
   --------------------------------------------------------------------------- */
/* The workhorse card — solid dark fill, hover lights border + slides a 2px
   accent bar in on the left, top-right meta turns accent. (source .cyber-card) */
.cyber-card { position: relative; overflow: hidden; background: var(--color-surface-2); border: 1px solid var(--border-subtle); padding: var(--card-pad); transition: border-color var(--dur-base) ease, background var(--dur-base) ease; }
.cyber-card:hover { border-color: color-mix(in srgb, var(--section-accent) 35%, transparent); }
.cyber-card::before { content: ''; position: absolute; top: -1px; bottom: -1px; left: -1px; width: 2px; background: var(--section-accent); opacity: 0; transition: opacity var(--dur-base) ease; }
.cyber-card:hover::before { opacity: 0.85; }
.cyber-card .card-meta { position: absolute; top: 12px; right: 14px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-disabled); transition: color var(--dur-base); }
.cyber-card:hover .card-meta { color: var(--section-accent); }
.cyber-card .card-title { margin: 0; font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); font-size: var(--text-md); letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-white); }
.cyber-card .card-desc { margin-top: 10px; font-family: var(--font-mono); font-size: 11.5px; line-height: var(--leading-prose); color: var(--text-tertiary); }
.cyber-card.is-interactive { cursor: pointer; }
.cyber-card.is-interactive:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* Stat module */
.stat { background: var(--bg-surface); border: 1px solid var(--border-default); padding: 24px; }
.stat .stat-n { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); font-size: var(--text-2xl); line-height: 1; color: var(--color-white); font-variant-numeric: tabular-nums; }
.stat .stat-n em { color: var(--action-primary); font-style: italic; }
.stat .stat-l { margin-top: 10px; font-family: var(--font-mono); font-size: var(--eyebrow-size); letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-secondary); }

/* Data table — hairline borders, tabular numerics, hover row, sticky header. */
.cyber-table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 12.5px; }
.cyber-table th { position: sticky; top: 0; text-align: left; padding: var(--row-pad-y) 16px; font-size: var(--eyebrow-size); letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-disabled); background: var(--bg-surface); border-bottom: 1px solid var(--border-default); }
.cyber-table td { padding: var(--row-pad-y) 16px; color: var(--text-secondary); border-bottom: 1px solid var(--border-subtle); }
.cyber-table tbody tr { transition: background var(--dur-fast); }
.cyber-table tbody tr:hover { background: var(--action-primary-weak); }
.cyber-table td b, .cyber-table td strong { color: var(--text-primary); font-weight: 500; }
.cyber-table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* List / log rows */
.cyber-list { background: var(--bg-surface); border: 1px solid var(--border-default); }
.cyber-list .row { display: flex; align-items: center; gap: 12px; padding: var(--row-pad-y) 16px; border-bottom: 1px solid var(--border-subtle); font-family: var(--font-mono); font-size: 12.5px; color: var(--text-secondary); }
.cyber-list .row:last-child { border-bottom: 0; }
.cyber-list .row b { color: var(--text-primary); font-weight: 500; }
.cyber-list .row .stamp { margin-left: auto; color: var(--text-disabled); font-size: 10px; letter-spacing: 0.2em; }
.cyber-list .row.is-active { background: var(--action-primary-weak); color: var(--text-primary); border-left: 2px solid var(--action-primary); }

/* Avatar */
.avatar { display: inline-grid; place-content: center; width: 36px; height: 36px; flex: none; background: var(--action-primary-weak); border: 1px solid color-mix(in srgb, var(--action-primary) 40%, transparent); color: var(--action-primary); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar.avatar-lg { width: 52px; height: 52px; font-size: 16px; }

/* Empty state */
.empty-state { display: grid; gap: 12px; place-items: center; text-align: center; padding: 48px 24px; border: 1px dashed var(--border-default); }
.empty-state .es-title { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-primary); font-size: var(--text-md); }
.empty-state .es-desc { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-tertiary); max-width: 42ch; line-height: 1.6; }

/* ---------------------------------------------------------------------------
   5.5 CHARTS / DATA-VIZ — inline-SVG + CSS primitives keyed to --chart-*.
   The palette + chrome tokens live in colors_and_type.css: --chart-1..6 alias
   the accents + diagram colors (so they inherit the light re-ink), while grid /
   axis / track stay low-contrast so the DATA is the signal, not the frame.
   Build charts as inline SVG/CSS reading these tokens — never a chart library's
   defaults. Series geometry (line paths, bars, areas) lives in the consumer;
   these are the shared frame, legend, donut, sparkline + bar-meter. Use 1–3
   series typically; the full six only for genuinely categorical data. See
   preview/charts.html. (DESIGN.md §2 "Data-viz / chart palette")
   --------------------------------------------------------------------------- */
.chart-frame { background: var(--bg-surface); border: 1px solid var(--border-default); padding: 18px 18px 14px; }
.chart-frame .chart-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.chart-frame .chart-title { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-white); font-size: var(--text-md); }
.chart-frame .chart-meta { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-disabled); }

/* SVG conventions — gridlines + axis text + sequential track via tokens.
   Apply .chart-svg to the <svg>; the consumer draws series with var(--chart-N). */
.chart-svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-svg .grid line, .chart-svg line.grid { stroke: var(--chart-grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart-svg text, .chart-svg .axis { font-family: var(--font-mono); font-size: 10px; fill: var(--chart-axis); letter-spacing: 0.06em; }
.chart-svg .track { fill: var(--chart-track); }
.chart-svg .dot { fill: var(--bg-base); stroke-width: 2; }

/* Legend — one shared component for every chart; each item carries --c. */
.chart-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 12px; }
.chart-legend .lg { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--text-secondary); }
.chart-legend .lg::before { content: ''; width: 10px; height: 10px; flex: 0 0 auto; background: var(--c, var(--chart-1)); box-shadow: 0 0 8px color-mix(in srgb, var(--c, var(--chart-1)) 45%, transparent); }
.chart-legend .lg .lg-v { margin-left: 4px; color: var(--text-primary); font-variant-numeric: tabular-nums; }

/* Sparkline — tiny inline trend; the consumer supplies the <svg> path(s). */
.spark { display: inline-block; width: 96px; height: 26px; vertical-align: middle; }
.spark path.line { fill: none; stroke: var(--c, var(--chart-1)); stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.spark path.fill { fill: color-mix(in srgb, var(--c, var(--chart-1)) 16%, transparent); stroke: none; }

/* CSS donut / ring — conic-gradient, no SVG. Set segments via --donut (a
   conic-gradient value keyed to --chart-N) and the hole via --hole. */
.donut-wrap { position: relative; display: inline-grid; place-items: center; }
.donut { width: var(--donut-size, 140px); aspect-ratio: 1; border-radius: 50%;
  background: conic-gradient(var(--donut, var(--chart-1) 0 100%));
  -webkit-mask: radial-gradient(farthest-side, transparent var(--hole, 62%), #000 calc(var(--hole, 62%) + 0.5px));
          mask: radial-gradient(farthest-side, transparent var(--hole, 62%), #000 calc(var(--hole, 62%) + 0.5px)); }
.donut-center { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.donut-center .dn { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); font-size: var(--text-xl); color: var(--color-white); line-height: 1; font-variant-numeric: tabular-nums; }
.donut-center .dl { margin-top: 4px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-disabled); }

/* Horizontal bar-meter — labelled rows on a token track (e.g. skill usage). */
.bar-meter { display: grid; gap: 12px; }
.bar-meter .bm { display: grid; grid-template-columns: minmax(96px, 132px) 1fr auto; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 11.5px; color: var(--text-secondary); }
.bar-meter .bm-track { position: relative; height: 8px; background: var(--chart-track); overflow: hidden; }
.bar-meter .bm-fill { position: absolute; inset: 0 auto 0 0; width: var(--v, 0%); background: var(--c, var(--chart-1)); box-shadow: 0 0 10px color-mix(in srgb, var(--c, var(--chart-1)) 45%, transparent); }
.bar-meter .bm-v { color: var(--text-primary); font-variant-numeric: tabular-nums; text-align: right; }

/* ---------------------------------------------------------------------------
   6. FEEDBACK  (alert · toast · progress · skeleton · spinner)
   --------------------------------------------------------------------------- */
.alert { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 1px solid var(--border-default); background: var(--bg-surface); border-left-width: 2px; }
.alert .alert-title { font-family: var(--font-mono); font-size: var(--text-sm); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-primary); }
.alert .alert-body { margin-top: 4px; font-family: var(--font-mono); font-size: var(--text-xs); line-height: 1.6; color: var(--text-tertiary); }
.alert-success { border-left-color: var(--fb-success); background: var(--fb-success-bg); }
.alert-success .alert-title { color: var(--fb-success); }
.alert-info { border-left-color: var(--fb-info); background: var(--fb-info-bg); }
.alert-info .alert-title { color: var(--fb-info); }
.alert-warning { border-left-color: var(--fb-warning); background: var(--fb-warning-bg); }
.alert-warning .alert-title { color: var(--fb-warning); }
.alert-danger { border-left-color: var(--fb-danger); background: var(--fb-danger-bg); }
.alert-danger .alert-title { color: var(--fb-danger); }

/* Toast — same anatomy, elevated; use aria-live="polite", auto-dismiss 3–5s. */
.toast { display: flex; gap: 12px; align-items: center; padding: 13px 16px; min-width: 260px; max-width: 380px; background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3); font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-secondary); }
.toast .toast-dot { width: 7px; height: 7px; border-radius: 50%; flex: none; background: var(--action-primary); box-shadow: var(--glow-sm); }
.toast.is-success .toast-dot { background: var(--fb-success); }
.toast.is-danger .toast-dot { background: var(--fb-danger); }
.toast b { color: var(--text-primary); font-weight: 500; }
/* Fixed region that holds the live toasts — owns the toast stacking tier
   (above modals so a confirmation shows over an open dialog). */
.toast-stack { position: fixed; right: 20px; bottom: 20px; z-index: var(--z-toast); display: flex; flex-direction: column; gap: 10px; pointer-events: none; }
.toast-stack .toast { pointer-events: auto; }

/* Progress — determinate bar + thin track. */
.progress { height: 6px; background: var(--bg-elevated); border: 1px solid var(--border-default); overflow: hidden; }
.progress .bar { height: 100%; background: var(--grad-button); box-shadow: var(--glow-sm); transition: width var(--dur-slow) var(--ease-out-expo); }

/* Skeleton shimmer (>1s loads) — animates background-position only. */
.skeleton { background: linear-gradient(100deg, var(--bg-surface) 30%, var(--bg-elevated) 50%, var(--bg-surface) 70%); background-size: 220% 100%; animation: cyber-shimmer 1.4s ease-in-out infinite; min-height: 14px; }
@keyframes cyber-shimmer { 0% { background-position: 180% 0; } 100% { background-position: -80% 0; } }

/* Spinner — rotating conic ring, transform-only. */
.spinner { width: 26px; height: 26px; border-radius: 50%; background: conic-gradient(from 0deg, transparent 0 70%, var(--action-primary) 100%); -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 0); mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 0); animation: cyber-spin 0.8s linear infinite; }
@keyframes cyber-spin { to { transform: rotate(1turn); } }

/* ---------------------------------------------------------------------------
   7. OVERLAYS  (modal · drawer · tooltip · dropdown)
   Provide your own open/close toggle (add .is-open). Scrim dims to 45–62%.
   --------------------------------------------------------------------------- */
.scrim { position: fixed; inset: 0; z-index: var(--z-overlay); background: var(--scrim); opacity: 0; visibility: hidden; transition: opacity var(--dur-base) ease, visibility var(--dur-base); }
.scrim.is-open { opacity: 1; visibility: visible; }

.modal { width: min(520px, calc(100vw - 32px)); background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3); transform: scale(0.96) translateY(8px); transition: transform var(--dur-base) var(--ease-out-expo); }
.scrim.is-open .modal { transform: none; }
.modal .modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--border-default); }
.modal .modal-title { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-white); font-size: var(--text-md); }
/* Icon-only close — the glyph is not a label, so the button MUST carry
   aria-label="Close" (and ideally a 44px tap area) in markup. */
.modal .modal-x { display: grid; place-content: center; width: var(--control-h-sm); height: var(--control-h-sm); margin: -6px -6px -6px 0; background: transparent; border: 0; color: var(--text-secondary); font-family: var(--font-mono); font-size: 18px; cursor: pointer; line-height: 1; }
.modal .modal-x:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.modal .modal-x:hover { color: var(--text-primary); }
.modal .modal-body { padding: 18px; font-family: var(--font-mono); font-size: var(--text-sm); line-height: 1.7; color: var(--text-tertiary); }
.modal .modal-foot { display: flex; gap: 12px; justify-content: flex-end; padding: 14px 18px; border-top: 1px solid var(--border-default); }

.drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: var(--z-modal); width: min(360px, 88vw); background: var(--bg-elevated); border-left: 1px solid var(--border-default); box-shadow: var(--elev-3); transform: translateX(100%); transition: transform var(--dur-base) var(--ease-out-expo); }
.drawer.is-open { transform: none; }
.drawer.drawer-left { right: auto; left: 0; border-left: 0; border-right: 1px solid var(--border-default); transform: translateX(-100%); }
.drawer.drawer-left.is-open { transform: none; }

.tooltip { position: relative; display: inline-flex; }
.tooltip .tip { position: absolute; z-index: var(--z-tooltip); bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(4px); white-space: nowrap; padding: 6px 10px; background: var(--bg-sunken); border: 1px solid var(--border-default); box-shadow: var(--elev-2); font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.04em; color: var(--text-primary); opacity: 0; pointer-events: none; transition: opacity var(--dur-fast), transform var(--dur-fast); }
.tooltip:hover .tip, .tooltip:focus-within .tip { opacity: 1; transform: translateX(-50%); }

/* Menu surface — the consumer positions it (absolute/fixed); z-index then
   places it above content + nav. */
.dropdown { min-width: 200px; z-index: var(--z-dropdown); background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3); padding: 6px; }
.dropdown .item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-secondary); cursor: pointer; text-decoration: none; transition: background var(--dur-fast), color var(--dur-fast); }
.dropdown .item:hover, .dropdown .item:focus-visible { background: var(--action-primary-weak); color: var(--text-primary); outline: none; }
.dropdown .item.is-danger { color: var(--fb-danger); }
.dropdown .sep { height: 1px; background: var(--border-subtle); margin: 6px 0; }

/* ---------------------------------------------------------------------------
   7.45 COMMAND PALETTE — the ⌘K skill launcher (operator-console heart).
   OneBrain is driven by /skill slash-commands; this overlay finds + runs them.
   Generalizes the inline palette prior-art in preview/surface-desktop.html into
   one reusable component. Pair with preview/command-palette.js (builds the list
   from a config, binds ⌘K + a trigger, handles filter / keyboard / ARIA).
   Layering: the .cmdk-scrim dims + blurs the page at --z-overlay; the panel rides
   --z-modal so it sits ABOVE the sticky nav. The panel is a dense pick-list, so it
   takes the near-opaque menu fill (like the select/dropdown) for crisp rows on top
   of the blurred scrim — the active row uses an accent left-bar + weak tint, never
   a solid-accent fill (same anti-OS-blue rule as .cyber-select).
   --------------------------------------------------------------------------- */
.cmdk-scrim {
  position: fixed; inset: 0; z-index: var(--z-overlay);
  display: grid; align-items: start; justify-items: center;
  padding: clamp(48px, 14vh, 160px) 16px 16px;
  background: var(--scrim); opacity: 0; visibility: hidden;
  transition: opacity var(--dur-base) ease, visibility var(--dur-base);
}
.cmdk-scrim.is-open { opacity: 1; visibility: visible; }
.command-palette {
  width: min(560px, 100%); background: var(--bg-elevated);
  border: 1px solid var(--border-default); box-shadow: var(--elev-3);
  transform: translateY(-8px) scale(0.985);
  transition: transform var(--dur-base) var(--ease-out-expo);
}
.cmdk-scrim.is-open .command-palette { transform: none; }
/* Search field — mono input, accent search glyph, slash affordance, hint kbd. */
.cmdk-field { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--border-default); }
.cmdk-field > svg { width: 18px; height: 18px; flex: 0 0 auto; color: var(--section-accent); }
.cmdk-input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--text-primary); font-family: var(--font-mono); font-size: var(--text-md); letter-spacing: 0.01em; }
.cmdk-input::placeholder { color: var(--text-secondary); }
.cmdk-field .kbd { flex: 0 0 auto; cursor: default; pointer-events: none; }
/* List — solid + internal scroll for legibility (a dense pick-list). */
.cmdk-list { max-height: 48vh; overflow-y: auto; padding: 6px; }
.cmdk-group { padding: 12px 12px 4px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--color-ghost); }
.cmdk-group:first-child { padding-top: 6px; }
.cmdk-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); cursor: pointer; scroll-margin: 6px; }
.cmdk-item > svg { width: 16px; height: 16px; flex: 0 0 auto; color: var(--section-accent); opacity: 0.8; transition: opacity var(--dur-fast) ease; }
.cmdk-item .cmdk-name { color: var(--text-primary); white-space: nowrap; }
.cmdk-item .cmdk-hl { color: var(--color-white); font-weight: 600; }
.cmdk-item .cmdk-desc { margin-left: auto; padding-left: 16px; color: var(--color-ghost); font-size: 11px; text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* Active row — accent left-bar + weak tint (NOT a solid accent fill). */
.cmdk-item.is-active { position: relative; background: var(--action-primary-weak); color: var(--text-primary); }
.cmdk-item.is-active::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--section-accent); }
.cmdk-item.is-active > svg { opacity: 1; }
.cmdk-empty { padding: 22px 16px; font-family: var(--font-mono); font-size: 12px; color: var(--color-muted); letter-spacing: 0.04em; text-align: center; }
.cmdk-foot { display: flex; align-items: center; gap: 16px; padding: 10px 16px; border-top: 1px solid var(--border-default); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-ghost); }
.cmdk-foot .kbd { padding: 2px 7px; font-size: 10px; cursor: default; pointer-events: none; }

/* ---------------------------------------------------------------------------
   7.5 ACCENT PICKER — user-settable runtime accent (chrome strip).
   A compact row of the four brand-accent swatches. Selecting one re-keys the
   surface from --section-accent / --action-primary / --action-primary-weak /
   --grad-button (driven by preview/accent-picker.js), so eyebrows, active tabs,
   CTAs, chips, focus rings and glows all follow one source of truth. Each dot is
   the ONE legitimate solid-accent fill in the system — it IS the color. Offer
   only the four brand accents so any choice stays on-palette. See DESIGN.md §2.
   --------------------------------------------------------------------------- */
.accent-dots { display: inline-flex; align-items: center; gap: 7px; }
.accent-dots .accent-dot {
  appearance: none; -webkit-appearance: none; cursor: pointer; flex: 0 0 auto;
  width: 18px; height: 18px; padding: 0; border: 1px solid var(--border-strong);
  background: var(--sw); display: grid; place-content: center; position: relative;
  transition: box-shadow var(--dur-fast) ease, transform var(--dur-fast) ease;
}
.accent-dots .accent-dot svg {
  width: 11px; height: 11px; color: #050507; opacity: 0; transform: scale(0.3);
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out-expo);
}
.accent-dots .accent-dot:hover { transform: translateY(-1px); box-shadow: 0 0 10px color-mix(in srgb, var(--sw) 55%, transparent); }
.accent-dots .accent-dot.is-sel { box-shadow: 0 0 0 1px var(--bg-base), 0 0 0 3px var(--sw), 0 0 14px color-mix(in srgb, var(--sw) 40%, transparent); }
.accent-dots .accent-dot.is-sel svg { opacity: 1; transform: scale(1); }
.accent-dots .accent-dot:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }
/* Optional mono label preceding the dots in dense chrome. */
.accent-dots .accent-lbl { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-disabled); margin-right: 3px; }

/* ---------------------------------------------------------------------------
   7.6 FROSTED GLASS — iOS-style translucency + backdrop blur for depth.
   Re-skins PANEL + OVERLAY surfaces so the HUD grid / orb behind them shows
   through faintly. Behind @supports so the opaque fills above stay the
   fallback; geometry stays cyber-sharp (only the hero terminal rounds).
   Tokens: --glass-* in colors_and_type.css (re-inked for the light theme).
   Data-entry + dense-data surfaces (inputs, tables) intentionally stay solid.
   --------------------------------------------------------------------------- */
@supports ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))) {
  /* Panels — cards, stat modules, list / log panels */
  .cyber-card, .stat, .cyber-list {
    background: var(--glass-fill);
    -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight);
  }
  /* Sticky nav / tab bar — frosted like an iOS bar (was solid by name only) */
  .nav-glass {
    background: var(--glass-fill-nav);
    -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-highlight);
  }
  /* Overlays over arbitrary content — stronger blur, more opaque for legibility */
  .modal, .drawer, .toast {
    background: var(--glass-fill-elevated);
    -webkit-backdrop-filter: var(--glass-blur-strong); backdrop-filter: var(--glass-blur-strong);
    box-shadow: var(--glass-highlight), var(--elev-3);
  }
  /* Dense pick-lists — scrim-less popup menus (dropdown / select listbox) float
     directly over live page content, and the command palette is the same kind of
     dense option list. They all take the near-opaque menu fill so page content
     can't bleed through and clash with the rows; the strong blur softens whatever
     still shows. The command palette ALSO has a dimming scrim behind it (below),
     so its background recedes twice — blurred scrim + near-opaque panel. */
  .dropdown, .cyber-select .cs-list, .command-palette {
    background: var(--glass-fill-menu);
    -webkit-backdrop-filter: var(--glass-blur-strong); backdrop-filter: var(--glass-blur-strong);
    box-shadow: var(--glass-highlight), var(--elev-3);
  }
  .tooltip .tip {
    background: var(--glass-fill-elevated);
    -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  }
  /* The scrim blurs the page behind an open modal / drawer / command palette
     (iOS sheet) so the background recedes and can't compete with the overlay. */
  .scrim, .cmdk-scrim {
    -webkit-backdrop-filter: var(--glass-blur-scrim); backdrop-filter: var(--glass-blur-scrim);
  }
}

/* a11y — users who request reduced transparency get the solid fills back. */
@media (prefers-reduced-transparency: reduce) {
  .cyber-card, .stat, .cyber-list, .nav-glass,
  .modal, .drawer, .dropdown, .toast, .tooltip .tip, .scrim, .cmdk-scrim, .command-palette, .cyber-select .cs-list {
    -webkit-backdrop-filter: none; backdrop-filter: none;
  }
  .cyber-card { background: var(--color-surface-2); }
  .stat, .cyber-list { background: var(--bg-surface); }
  .nav-glass { background: var(--bg-sunken); }
  .modal, .drawer, .dropdown, .toast, .command-palette, .cyber-select .cs-list { background: var(--bg-elevated); }
  .tooltip .tip { background: var(--bg-sunken); }
}

/* ---------------------------------------------------------------------------
   8. REDUCED MOTION — honor the user preference everywhere.
   --------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .cyber-dot.is-pulse, .skeleton, .spinner { animation: none; }
  .btn-tech, .btn-ghost, .btn-quiet, .btn-danger, .cyber-input, .cyber-card,
  .cyber-tabs button::after, .composer, .modal, .drawer, .toast, .tooltip .tip,
  .progress .bar, .accent-dots .accent-dot, .accent-dots .accent-dot svg,
  .command-palette, .cmdk-scrim, .cmdk-item > svg,
  .cyber-select::after, .cyber-select .cs-list { transition: none; }
  .modal, .drawer.drawer-left, .drawer, .command-palette { transform: none; }
}

/* ---------------------------------------------------------------------------
   9. ICONS — the shared Lucide-line sprite (assets/icons.svg, DESIGN.md §6).
   .ob-icon sets fill/stroke/width/caps ONCE; the geometry-only <symbol>s
   inherit it, and currentColor makes each icon follow the surrounding text or
   accent color. Three fixed sizes (16 / 20 / 24) per the spec.
     <svg class="ob-icon ob-icon-20"><use href="assets/icons.svg#ob-vault"/></svg>
   --------------------------------------------------------------------------- */
.ob-icon {
  display: inline-block; width: 20px; height: 20px; flex: none; vertical-align: middle;
  fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round;
}
.ob-icon-16 { width: 16px; height: 16px; }
.ob-icon-20 { width: 20px; height: 20px; }
.ob-icon-24 { width: 24px; height: 24px; }

/* ---------------------------------------------------------------------------
   10. DISCLOSURE / ACCORDION — native <details>/<summary>, styled cyber-sharp.
   Accessible by default (keyboard + screen reader come from the element). The
   chevron rotates and the row keys to the section accent when open; an open
   item gets the same 2px left accent bar the cards use.
     <div class="accordion">
       <details class="accordion-item"><summary>… <svg class="ob-icon ob-icon-16 accordion-chevron"><use href="#ob-chevron-right"/></svg></summary>
         <div class="accordion-body">…</div></details>
     </div>
   --------------------------------------------------------------------------- */
.accordion { border: 1px solid var(--border-default); background: var(--bg-surface); max-width: 640px; }
.accordion-item { position: relative; border-bottom: 1px solid var(--border-subtle); }
.accordion-item:last-child { border-bottom: 0; }
.accordion-item > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.03em;
  color: var(--text-primary); user-select: none; transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}
.accordion-item > summary::-webkit-details-marker { display: none; }
.accordion-item > summary:hover { background: var(--action-primary-weak); }
.accordion-item > summary:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: -2px; }
.accordion-chevron { margin-left: auto; color: var(--text-tertiary); transition: transform var(--dur-base) var(--ease-out-expo), color var(--dur-fast) ease; }
.accordion-item[open] > summary { color: var(--section-accent, var(--color-accent-2)); }
.accordion-item[open] > summary .accordion-chevron { transform: rotate(90deg); color: var(--section-accent, var(--color-accent-2)); }
.accordion-item[open]::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--section-accent, var(--color-accent-2)); box-shadow: var(--glow-accent); }
.accordion-body { padding: 2px 16px 16px; font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.65; }
/* Smooth open/close — animate the disclosure height. Gated behind @supports so
   browsers without interpolate-size keep today's instant snap (no regression). */
@supports (interpolate-size: allow-keywords) {
  .accordion { interpolate-size: allow-keywords; }   /* inherits → enables auto-height anim */
  .accordion-item::details-content {
    block-size: 0; overflow: clip; opacity: 0;
    transition: block-size var(--dur-base) var(--ease-out-expo),
                opacity var(--dur-fast) ease,
                content-visibility var(--dur-base) allow-discrete;
  }
  .accordion-item[open]::details-content { block-size: auto; opacity: 1; }
  @media (prefers-reduced-motion: reduce) {
    .accordion-item::details-content { transition: none; }
  }
}

/* ---------------------------------------------------------------------------
   11. SEGMENTED CONTROL — CSS-only radio group (no JS). The active segment
   reads as accent TEXT on a weak tint + hairline accent ring, not a solid
   accent fill (same anti-OS-blue rule as the select / command palette).
     <div class="segmented" role="radiogroup" aria-label="View">
       <input type="radio" id="seg-list" name="view" checked><label for="seg-list">List</label>
       <input type="radio" id="seg-graph" name="view"><label for="seg-graph">Graph</label>
     </div>
   --------------------------------------------------------------------------- */
.segmented { display: inline-flex; position: relative; background: var(--bg-elevated); border: 1px solid var(--border-default); padding: 3px; gap: 2px; }
.segmented input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.segmented label {
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 16px; min-height: var(--control-h-sm);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-tertiary); cursor: pointer; white-space: nowrap; user-select: none;
  transition: color var(--dur-fast) ease, background var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.segmented label:hover { color: var(--text-secondary); }
.segmented input:checked + label {
  color: var(--section-accent, var(--color-accent-2)); background: var(--action-primary-weak);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--section-accent, var(--color-accent-2)) 42%, transparent);
}
.segmented input:focus-visible + label { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.segmented input:disabled + label { opacity: var(--disabled-opacity); cursor: not-allowed; }

/* ---------------------------------------------------------------------------
   12. DROPZONE — file upload, progressively enhanced (preview/dropzone.js).
   Ships a real <input type="file"> so it works with no JS; the enhancer adds
   click/drag-drop + a synced file list. Dashed border keys to the accent on
   hover / drag-over; the chosen-file rows stay solid for legibility.
   --------------------------------------------------------------------------- */
.dropzone {
  position: relative; display: grid; place-items: center; gap: 10px; text-align: center;
  padding: 32px 24px; max-width: 520px; cursor: pointer;
  border: 1px dashed var(--border-strong); background: var(--bg-surface);
  transition: border-color var(--dur-fast) ease, background var(--dur-fast) ease;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--section-accent, var(--color-accent-2)); outline: none; }
.dropzone:focus-visible { box-shadow: 0 0 0 2px color-mix(in srgb, var(--focus-ring) 60%, transparent); }
.dropzone.is-drag { border-style: solid; border-color: var(--section-accent, var(--color-accent-2)); background: var(--action-primary-weak); }
.dropzone .ob-icon { color: var(--text-tertiary); transition: color var(--dur-fast) ease; }
.dropzone.is-drag .ob-icon { color: var(--section-accent, var(--color-accent-2)); }
.dropzone-title { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.03em; color: var(--text-secondary); }
.dropzone-title b { color: var(--text-link); font-weight: 600; }
.dropzone-hint { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-ghost); }
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.dz-files { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 8px; max-width: 520px; }
.dz-file { display: flex; align-items: center; gap: 12px; padding: 10px 12px; background: var(--bg-surface); border: 1px solid var(--border-default); font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }
.dz-file .dz-ic { color: var(--text-tertiary); display: inline-grid; place-content: center; flex: none; }
.dz-file .dz-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dz-file .dz-size { color: var(--text-tertiary); font-variant-numeric: tabular-nums; flex: none; }
.dz-file .dz-remove { flex: none; background: none; border: 0; color: var(--text-tertiary); cursor: pointer; padding: 4px; display: inline-grid; place-content: center; transition: color var(--dur-fast) ease; }
.dz-file .dz-remove:hover { color: var(--fb-danger); }
.dz-file .dz-remove:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 1px; }

/* ---------------------------------------------------------------------------
   12.5  PAGE STATES — full-page 404 / 500 / 403 / offline / loading templates.
   A centered operator-console state over the HUD ground: a huge corner-cut mono
   status code, an italic Chakra headline, a mono sub-paragraph, primary + ghost
   actions, and a mono status line. Keyed to --section-accent, so each state
   re-tints by setting that one var on the .page-state element (danger magenta
   for 500, warning amber for 403, info cyan for 404 / offline / loading).
   --------------------------------------------------------------------------- */
.page-state {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-7, 64px) var(--space-5, 32px);
  position: relative;
}
.page-state-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4, 24px);
  max-width: 540px;
  width: 100%;
}
.page-state-code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 16vw, 9rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--section-accent);
  text-shadow: 0 0 28px color-mix(in oklab, var(--section-accent) 35%, transparent);
  font-variant-numeric: tabular-nums;
}
.page-state-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  text-transform: uppercase;
  font-size: var(--text-2xl);
  letter-spacing: -0.01em;
  color: var(--color-white);
  margin: 0;
}
.page-state-sub {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-faint);
  max-width: 44ch;
  margin: 0;
}
.page-state-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3, 16px);
  justify-content: center;
  margin-top: var(--space-2);
}
.page-state-status {
  font-family: var(--font-mono);
  font-size: var(--eyebrow-size);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-ghost);
  margin-top: var(--space-5, 32px);
}
.page-state-status .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--section-accent);
  box-shadow: 0 0 8px var(--section-accent);
  margin-inline-end: 8px;
  vertical-align: middle;
  animation: cyber-pulse 1.5s var(--ease-out-expo, ease) infinite;
}

/* ---------------------------------------------------------------------------
   13. INTERNATIONALIZATION / RTL — see DESIGN.md §10.
   The font stacks (--font-sans / --font-display) carry Thai · Arabic · CJK
   system fallbacks after the Latin faces, so non-Latin text renders instead of
   tofu. New work should author with LOGICAL properties (margin-inline, inset-
   inline, border-inline, text-align:start) so it mirrors for free. This block
   flips the handful of components that still use PHYSICAL left/right
   decorations under [dir="rtl"].
   --------------------------------------------------------------------------- */
[dir="rtl"] { } /* hook for app-level direction; components below mirror their physical bits */
/* card / accordion accent bar: left -> right */
[dir="rtl"] .cyber-card::before,
[dir="rtl"] .accordion-item[open]::before { left: auto; right: 0; }
/* alert state bar: border-left -> border-right */
[dir="rtl"] .alert { border-left-width: 1px; border-right-width: 2px; }
[dir="rtl"] .alert-success { border-left-color: var(--border-default); border-right-color: var(--fb-success); }
[dir="rtl"] .alert-info    { border-left-color: var(--border-default); border-right-color: var(--fb-info); }
[dir="rtl"] .alert-warning { border-left-color: var(--border-default); border-right-color: var(--fb-warning); }
[dir="rtl"] .alert-danger  { border-left-color: var(--border-default); border-right-color: var(--fb-danger); }
/* default drawer docks to the right; mirror it to the left edge */
[dir="rtl"] .drawer { right: auto; left: 0; border-left: 0; border-right: 1px solid var(--border-default); transform: translateX(-100%); }
[dir="rtl"] .drawer.is-open { transform: translateX(0); }
/* fixed corner stacks: right -> left */
[dir="rtl"] .toast-stack { right: auto; left: 20px; }
/* nav-link bracket reveal + chevrons read direction-correct */
[dir="rtl"] .accordion-item[open] > summary .accordion-chevron { transform: rotate(-90deg); }
[dir="rtl"] .breadcrumb, [dir="rtl"] .pagination { direction: rtl; }
/* carousel prev/next chevrons point the direction-correct way */
[dir="rtl"] .carousel-ctrl svg { transform: scaleX(-1); }

/* a11y — the interactive components honor reduced motion too. */
@media (prefers-reduced-motion: reduce) {
  .accordion-item > summary, .accordion-chevron, .segmented label,
  .dropzone, .dropzone .ob-icon, .dz-file .dz-remove { transition: none; }
  .page-state-status .dot { animation: none; }
}

/* ---------------------------------------------------------------------------
   14. STEPPER / WIZARD — horizontal numbered steps with done / active /
   upcoming states; the connector fills with the section accent up to the
   current step. For onboarding / setup flows (matches the /onboarding skill).
   Authored with logical properties so it mirrors under [dir="rtl"] for free.
     <ol class="stepper">
       <li class="stepper-step is-done"><span class="stepper-num"><svg class="ob-icon ob-icon-16"><use href="#ob-check"/></svg></span><span class="stepper-label">Install</span></li>
       <li class="stepper-step is-active"><span class="stepper-num">2</span><span class="stepper-label">Connect vault</span></li>
       <li class="stepper-step"><span class="stepper-num">3</span><span class="stepper-label">First capture</span></li>
     </ol>
   --------------------------------------------------------------------------- */
.stepper { display: flex; list-style: none; margin: 0; padding: 0; }
.stepper-step { position: relative; flex: 1 1 0; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; min-width: 0; }
.stepper-step::before {           /* connector to the previous step */
  content: ""; position: absolute; inset-block-start: 17px; z-index: 0;
  inset-inline-start: -50%; inline-size: 100%; block-size: 2px; background: var(--border-default);
}
.stepper-step:first-child::before { display: none; }
.stepper-num {
  position: relative; z-index: 1; inline-size: 36px; block-size: 36px; flex: none;
  display: grid; place-content: center; background: var(--bg-base);
  border: 1.5px solid var(--border-strong); color: var(--text-tertiary);
  font-family: var(--font-mono); font-size: 13px; font-variant-numeric: tabular-nums;
  transition: border-color var(--dur-fast) ease, color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.stepper-num .ob-icon { stroke-width: 2.25; }
.stepper-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; line-height: 1.4; color: var(--text-tertiary); max-width: 16ch; }
.stepper-step.is-done .stepper-num,
.stepper-step.is-active .stepper-num { border-color: var(--section-accent); color: var(--section-accent); }
.stepper-step.is-active .stepper-num { box-shadow: 0 0 0 3px var(--action-primary-weak), var(--glow-accent); }
.stepper-step.is-active .stepper-label { color: var(--text-primary); }
.stepper-step.is-done .stepper-label { color: var(--text-secondary); }
.stepper-step.is-done::before,
.stepper-step.is-active::before { background: var(--section-accent); }
/* Vertical variant — stacks for narrow / sidebar contexts. */
.stepper.stepper-vertical { flex-direction: column; align-items: stretch; }
.stepper-vertical .stepper-step { flex-direction: row; align-items: flex-start; gap: 14px; text-align: start; padding-block-end: 16px; }
.stepper-vertical .stepper-step::before { inset-block-start: 0; inset-inline-start: 17px; inline-size: 2px; block-size: 100%; }
.stepper-vertical .stepper-label { max-width: none; padding-block-start: 9px; }

/* ---------------------------------------------------------------------------
   15. TIMELINE / ACTIVITY FEED — vertical run of timestamped events with a
   connector spine and an accent node per item; state variants recolor the node
   (success / warning / danger). For session logs, the co-evolution loop,
   history. Logical properties mirror it under RTL.
     <ul class="timeline">
       <li class="timeline-item is-success"><span class="timeline-node"></span>
         <div class="timeline-time">2m ago</div><div class="timeline-title">…</div><div class="timeline-body">…</div></li>
     </ul>
   --------------------------------------------------------------------------- */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline-item { position: relative; padding-inline-start: 30px; padding-block-end: 22px; }
.timeline-item::before {           /* spine */
  content: ""; position: absolute; inset-inline-start: 6px; inset-block-start: 6px;
  inline-size: 2px; block-size: 100%; background: var(--border-default);
}
.timeline-item:last-child::before { display: none; }
.timeline-node {
  position: absolute; inset-inline-start: 0; inset-block-start: 3px; z-index: 1;
  inline-size: 14px; block-size: 14px; border-radius: var(--radius-pill);
  background: var(--bg-base); border: 2px solid var(--section-accent); box-shadow: var(--glow-accent);
}
.timeline-time { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-disabled); }
.timeline-title { font-family: var(--font-mono); font-size: 13px; color: var(--text-primary); margin-block: 3px 4px; }
.timeline-title b { color: var(--section-accent); font-weight: 500; }
.timeline-body { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); line-height: 1.6; }
.timeline-item.is-success .timeline-node { border-color: var(--fb-success); box-shadow: 0 0 8px color-mix(in srgb, var(--fb-success) 55%, transparent); }
.timeline-item.is-warning .timeline-node { border-color: var(--fb-warning); box-shadow: 0 0 8px color-mix(in srgb, var(--fb-warning) 55%, transparent); }
.timeline-item.is-danger  .timeline-node { border-color: var(--fb-danger);  box-shadow: 0 0 8px color-mix(in srgb, var(--fb-danger) 55%, transparent); }

/* ---------------------------------------------------------------------------
   16. TREE VIEW — the vault's PARA folder tree (00-inbox … 07-logs). Folders
   are native <details> (keyboard + a11y free); the chevron rotates and an
   active leaf gets the same accent inline-start bar the sidebar/cards use. The
   indent guide is an inline-start hairline, so it mirrors under RTL.
   --------------------------------------------------------------------------- */
.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree { font-family: var(--font-mono); font-size: 13px; max-width: 360px; }
.tree ul { padding-inline-start: 16px; margin-inline-start: 9px; border-inline-start: 1px solid var(--border-subtle); }
.tree-row {
  display: flex; align-items: center; gap: 8px; padding: 6px 10px; min-height: 32px;
  color: var(--text-secondary); cursor: pointer; user-select: none;
  border-inline-start: 2px solid transparent;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}
.tree-row:hover { background: var(--action-primary-weak); color: var(--text-primary); }
.tree-row .ob-icon { color: var(--text-tertiary); flex: none; }
.tree-spacer { display: inline-block; inline-size: 16px; flex: none; }
.tree-count { margin-inline-start: auto; font-size: 10px; letter-spacing: 0.1em; color: var(--text-disabled); font-variant-numeric: tabular-nums; }
.tree-row.is-active { color: var(--section-accent); background: var(--action-primary-weak); border-inline-start-color: var(--section-accent); }
.tree-row.is-active .ob-icon { color: var(--section-accent); }
.tree details > summary { list-style: none; }
.tree details > summary::-webkit-details-marker { display: none; }
.tree-chevron { color: var(--text-tertiary); flex: none; transition: transform var(--dur-base) var(--ease-out-expo); }
.tree details[open] > summary .tree-chevron { transform: rotate(90deg); }
[dir="rtl"] .tree details[open] > summary .tree-chevron { transform: rotate(-90deg); }

/* ---------------------------------------------------------------------------
   17. CODE BLOCK — a titled, copyable block for config / commands (onebrain.yml,
   /slash-commands). Header carries the filename + a language tag + a copy button
   (preview/code-copy.js, zero-dep). Optional line numbers via .code-lines. The
   syntax token colors are SEMANTIC (like the chart / state palette) so they stay
   fixed; only the language tag + copy hover follow the section accent.
   --------------------------------------------------------------------------- */
.code-block { border: 1px solid var(--border-default); background: var(--bg-sunken); max-width: 720px; }
.code-head { display: flex; align-items: center; gap: 10px; padding: 9px 12px 9px 14px; border-bottom: 1px solid var(--border-default); background: var(--bg-surface); }
.code-name { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em; color: var(--text-secondary); }
.code-lang { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--section-accent); border: 1px solid color-mix(in srgb, var(--section-accent) 32%, transparent); padding: 1px 6px; }
.code-copy {
  margin-inline-start: auto; display: inline-flex; align-items: center; gap: 6px;
  background: none; border: 1px solid var(--border-default); color: var(--text-tertiary);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 4px 9px; cursor: pointer; transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.code-copy:hover { color: var(--section-accent); border-color: var(--section-accent); }
.code-copy:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.code-copy.is-copied { color: var(--fb-success); border-color: color-mix(in srgb, var(--fb-success) 40%, transparent); }
.code-block pre { margin: 0; padding: 16px; overflow-x: auto; }
.code-block pre code { font-family: var(--font-mono); font-size: 12.5px; line-height: 1.7; color: var(--text-secondary); }
.code-lines { counter-reset: cl; margin: 0; padding: 14px 0; overflow-x: auto; }
.code-lines .cl { display: block; position: relative; padding-inline: 50px 16px; white-space: pre; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.7; color: var(--text-secondary); }
.code-lines .cl::before { counter-increment: cl; content: counter(cl); position: absolute; inset-inline-start: 0; inline-size: 34px; text-align: end; color: var(--text-disabled); }
/* semantic syntax tokens — fixed, not accent-keyed (like chart / state colors) */
.code-block .tok-com { color: var(--text-disabled); font-style: italic; }
.code-block .tok-key { color: var(--color-accent-2); }
.code-block .tok-str { color: var(--color-success); }
.code-block .tok-fn  { color: var(--color-accent-3); }
.code-block .tok-num { color: var(--color-accent-4); }

/* ---------------------------------------------------------------------------
   18. METRIC / KPI TILE — a dashboard stat with a trend delta (↑/↓ %, success /
   danger) and an optional inline sparkline (.spark, §5.5). Numbers are tabular.
   Extends the plain .stat with a labelled top row + a trend foot.
   --------------------------------------------------------------------------- */
.metric { background: var(--bg-surface); border: 1px solid var(--border-default); padding: 20px 22px; display: flex; flex-direction: column; gap: 10px; }
.metric-top { display: flex; align-items: center; gap: 10px; }
.metric-label { font-family: var(--font-mono); font-size: var(--eyebrow-size); letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-secondary); }
.metric-ic { margin-inline-start: auto; color: var(--text-tertiary); }
.metric-n { font-family: var(--font-display); font-style: italic; font-weight: var(--weight-bold); font-size: var(--text-2xl); line-height: 1; color: var(--color-white); font-variant-numeric: tabular-nums; }
.metric-foot { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.metric-trend { display: inline-flex; align-items: center; gap: 4px; font-family: var(--font-mono); font-size: 11px; font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
.metric-trend .ob-icon { width: 14px; height: 14px; }
.metric-trend.is-up { color: var(--fb-success); }
.metric-trend.is-down { color: var(--fb-danger); }
.metric-trend.is-flat { color: var(--text-tertiary); }
.metric-sub { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; color: var(--text-disabled); }
.metric .spark { width: 100%; height: 34px; margin-top: 2px; }

/* ---------------------------------------------------------------------------
   19. BANNER / ANNOUNCEMENT — a full-width inline message strip for system
   notices (new version, vault offline, blocked signup). Icon + message + an
   optional action + dismiss. The default keys to --section-accent; semantic
   variants (.is-info / .is-success / .is-warning / .is-danger) override the
   inline-start bar + icon to the fixed state color. Dismiss via preview/ui-actions.js.
     <div class="banner is-warning" role="status">
       <svg class="banner-ic ob-icon ob-icon-20"><use href="assets/icons.svg#ob-harness"/></svg>
       <p class="banner-body"><b>Vault offline.</b> Working locally; changes sync on reconnect.</p>
       <div class="banner-actions"><a class="cyber-link" href="#">Reconnect</a>
         <button class="banner-x" data-dismiss aria-label="Dismiss"> … </button></div>
     </div>
   --------------------------------------------------------------------------- */
.banner { display: flex; align-items: center; gap: 14px; padding: 12px 16px; background: var(--bg-surface); border: 1px solid var(--border-default); border-inline-start: 2px solid var(--section-accent); }
.banner-ic { flex: none; color: var(--section-accent); display: grid; place-items: center; }
.banner-body { flex: 1 1 auto; min-width: 0; margin: 0; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.55; color: var(--text-secondary); }
.banner-body b { color: var(--text-primary); font-weight: 500; }
.banner-actions { display: flex; align-items: center; gap: 12px; flex: none; font-family: var(--font-mono); font-size: 12.5px; }
.banner-x { display: inline-grid; place-items: center; width: 28px; height: 28px; flex: none; background: transparent; border: 0; color: var(--text-tertiary); cursor: pointer; transition: color var(--dur-fast), background var(--dur-fast); }
.banner-x:hover, .banner-x:focus-visible { color: var(--text-primary); background: var(--action-primary-weak); outline: none; }
.banner-x:focus-visible { box-shadow: 0 0 0 2px var(--section-accent); }
.banner.is-info    { border-inline-start-color: var(--fb-info); }    .banner.is-info .banner-ic    { color: var(--fb-info); }
.banner.is-success { border-inline-start-color: var(--fb-success); } .banner.is-success .banner-ic { color: var(--fb-success); }
.banner.is-warning { border-inline-start-color: var(--fb-warning); } .banner.is-warning .banner-ic { color: var(--fb-warning); }
.banner.is-danger  { border-inline-start-color: var(--fb-danger); }  .banner.is-danger .banner-ic  { color: var(--fb-danger); }
.banner[hidden] { display: none; }

/* ---------------------------------------------------------------------------
   20. TOOLBAR — a dense action bar for editor / console headers: grouped icon
   buttons split by hairline separators, with a flexible spacer. Active reads
   --section-accent (a state the app drives); preview/ui-actions.js toggles it.
     <div class="toolbar" role="toolbar">
       <div class="toolbar-group">
         <button class="toolbar-btn is-active" data-toggle-active aria-pressed="true"> … </button> … </div>
       <span class="toolbar-sep"></span> …
       <span class="toolbar-spacer"></span>
       <button class="toolbar-btn"> … </button>
     </div>
   --------------------------------------------------------------------------- */
.toolbar { display: flex; align-items: center; gap: 4px; padding: 6px; background: var(--bg-surface); border: 1px solid var(--border-default); flex-wrap: wrap; }
.toolbar-group { display: flex; align-items: center; gap: 2px; }
.toolbar-sep { inline-size: 1px; align-self: stretch; min-block-size: 24px; background: var(--border-default); margin-inline: 6px; }
.toolbar-spacer { flex: 1 1 auto; }
.toolbar-btn { display: inline-grid; place-items: center; inline-size: 36px; block-size: 36px; flex: none; background: transparent; border: 0; color: var(--text-secondary); cursor: pointer; transition: color var(--dur-fast), background var(--dur-fast); }
.toolbar-btn:hover { color: var(--text-primary); background: var(--action-primary-weak); }
.toolbar-btn:focus-visible { outline: none; color: var(--text-primary); box-shadow: 0 0 0 2px var(--section-accent); }
.toolbar-btn[aria-pressed="true"], .toolbar-btn.is-active { color: var(--section-accent); background: var(--action-primary-weak); }
.toolbar-btn[disabled] { opacity: var(--disabled-opacity); pointer-events: none; }
.toolbar-label { padding-inline: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-tertiary); }

/* ---------------------------------------------------------------------------
   21. MENU — a richer dropdown body: section labels, an icon + title + optional
   description per row, a trailing .kbd shortcut, checkable + danger items. Wrap
   it in native <details class="menu-wrap"><summary> for a no-JS disclosure, or
   drop the .menu inside a JS-positioned .dropdown shell. Icons key to accent on
   hover; checked rows show an accent inline-start bar (never a solid fill).
     <details class="menu-wrap">
       <summary class="btn-ghost"> Actions </summary>
       <div class="menu" role="menu">
         <div class="menu-label">Capture</div>
         <button class="menu-item" role="menuitem">
           <svg class="ob-icon ob-icon-20"><use href="assets/icons.svg#ob-capture"/></svg>
           <span class="menu-text"><span class="menu-title">New note</span>
             <span class="menu-desc">Save a titled idea</span></span>
           <kbd class="kbd">C</kbd></button> … </div>
     </details>
   --------------------------------------------------------------------------- */
.menu-wrap { position: relative; display: inline-block; }
.menu-wrap > summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; }
.menu-wrap > summary::-webkit-details-marker { display: none; }
.menu-wrap[open] > .menu { animation: menu-in var(--dur-fast) var(--ease-out-expo); }
.menu-wrap[open] > summary ~ .menu { position: absolute; inset-block-start: calc(100% + 6px); inset-inline-start: 0; }
@keyframes menu-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.menu { min-width: 248px; z-index: var(--z-dropdown); background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3); padding: 6px; }
.menu-label { padding: 8px 12px 4px; font-family: var(--font-mono); font-size: var(--eyebrow-size); letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-disabled); }
.menu-item { position: relative; display: flex; align-items: center; gap: 12px; inline-size: 100%; padding: 9px 12px; background: transparent; border: 0; text-align: start; color: var(--text-secondary); font-family: var(--font-mono); font-size: 12.5px; cursor: pointer; text-decoration: none; transition: background var(--dur-fast), color var(--dur-fast); }
.menu-item > .ob-icon { flex: none; color: var(--text-tertiary); transition: color var(--dur-fast); }
.menu-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1 1 auto; }
.menu-title { color: var(--text-primary); }
.menu-desc { font-size: 11px; color: var(--text-tertiary); line-height: 1.4; }
.menu-item .kbd { margin-inline-start: auto; flex: none; }
.menu-item:hover, .menu-item:focus-visible { background: var(--action-primary-weak); color: var(--text-primary); outline: none; }
.menu-item:hover > .ob-icon, .menu-item:focus-visible > .ob-icon { color: var(--section-accent); }
.menu-item.is-checked { color: var(--text-primary); }
.menu-item.is-checked::before { content: ""; position: absolute; inset-block: 6px; inset-inline-start: 0; inline-size: 2px; background: var(--section-accent); }
.menu-item.is-checked > .ob-icon { color: var(--section-accent); }
.menu-item.is-danger { color: var(--fb-danger); }
.menu-item.is-danger:hover { background: color-mix(in srgb, var(--fb-danger) 14%, transparent); color: var(--fb-danger); }
.menu-sep { block-size: 1px; background: var(--border-subtle); margin: 6px 0; }

/* ---------------------------------------------------------------------------
   22. COMBOBOX / MULTI-SELECT — a token field for picking many values (skills,
   PARA folders, a blocklist). Selected values render as removable .combobox-token
   chips beside a type-to-filter input; the option listbox reuses the menu look.
   Progressively enhanced by preview/combobox.js from a native <select multiple>
   (form submit + no-JS fallback intact). Field focus + tokens key to accent.
     <label class="field-label" for="cb-skills">Skills</label>
     <select id="cb-skills" name="skills" multiple data-combobox
             data-placeholder="Add a skill…"> <option>capture</option> … </select>
   --------------------------------------------------------------------------- */
.combobox { position: relative; }
.combobox-field { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-block-size: var(--control-h); padding: 6px 8px; background: var(--bg-surface); border: 1px solid var(--border-default); cursor: text; transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.combobox-field:focus-within { border-color: var(--section-accent); box-shadow: 0 0 0 1px var(--section-accent), 0 0 18px color-mix(in srgb, var(--section-accent) 28%, transparent); }
.combobox-token { display: inline-flex; align-items: center; gap: 6px; padding-block: 3px; padding-inline: 9px 5px; background: var(--action-primary-weak); border: 1px solid color-mix(in srgb, var(--section-accent) 40%, transparent); color: var(--section-accent); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em; }
.combobox-token button { display: inline-grid; place-items: center; inline-size: 16px; block-size: 16px; padding: 0; background: transparent; border: 0; color: inherit; cursor: pointer; opacity: 0.75; transition: opacity var(--dur-fast); }
.combobox-token button:hover, .combobox-token button:focus-visible { opacity: 1; outline: none; }
.combobox-token button svg { inline-size: 12px; block-size: 12px; }
.combobox-input { flex: 1 1 90px; min-inline-size: 90px; border: 0; background: transparent; color: var(--text-primary); font-family: var(--font-mono); font-size: 13px; padding: 4px 2px; outline: none; }
.combobox-input::placeholder { color: var(--text-tertiary); }
.combobox-list { position: absolute; inset-block-start: calc(100% + 6px); inset-inline: 0; max-block-size: 248px; overflow-y: auto; z-index: var(--z-dropdown); background: var(--bg-elevated); border: 1px solid var(--border-default); box-shadow: var(--elev-3); padding: 6px; }
.combobox-list[hidden] { display: none; }
.combobox-opt { position: relative; display: flex; align-items: center; gap: 10px; padding: 9px 12px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-secondary); cursor: pointer; }
.combobox-opt .opt-check { inline-size: 16px; block-size: 16px; flex: none; opacity: 0; color: var(--section-accent); }
.combobox-opt[aria-selected="true"] { color: var(--text-primary); }
.combobox-opt[aria-selected="true"] .opt-check { opacity: 1; }
.combobox-opt.is-active { background: var(--action-primary-weak); color: var(--text-primary); }
.combobox-empty { padding: 12px; font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); text-align: center; }

/* ---------------------------------------------------------------------------
   23. AVATAR GROUP — overlapping avatars for collaborators / sub-agents, with a
   +N overflow tile. Each avatar rings in the page ground so the stack reads as
   layered; set --avatar-ring to the surface behind it. Extends .avatar (§5).
     <div class="avatar-group" style="--avatar-ring: var(--color-surface)">
       <span class="avatar" title="Inbox Classifier">IC</span> …
       <span class="avatar avatar-more">+3</span>
     </div>
   --------------------------------------------------------------------------- */
/* Square (sharp-corner) tiles read as a clean gapped cluster, not an overlap —
   overlapping square edges stack their 2px rings into doubled hairlines. */
.avatar-group { display: inline-flex; align-items: center; gap: 8px; }
.avatar-group .avatar { box-shadow: 0 0 0 2px var(--avatar-ring, var(--color-bg)); }
.avatar-group .avatar-more { background: var(--bg-elevated); border-color: var(--border-strong); color: var(--text-secondary); }

/* ===========================================================================
   24. PRICING TABLE — tiered plan cards for a marketing / upgrade surface. One
   tier is .is-featured (accent frame + glow + a RECOMMENDED tab); the rest are
   plain panels. A CSS-only billing toggle — a .segmented with #bill-monthly /
   #bill-annual radios inside .pricing — swaps the .mo / .yr amounts via :has(),
   no JS. Prices are mono tabular; the CTA reuses .btn-tech / .btn-ghost (§1).
     <div class="pricing">
       <div class="segmented price-bill"> <input id="bill-monthly" …> … </div>
       <div class="price-grid">
         <article class="price-tier is-featured"> <span class="price-rec">…</span> … </article>
       </div>
     </div>
   --------------------------------------------------------------------------- */
.pricing { max-width: 940px; }
.price-bill { width: max-content; margin-block-end: 22px; }
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(214px, 1fr)); gap: 16px; align-items: start; }
.price-tier { position: relative; display: flex; flex-direction: column; gap: 15px;
  background: var(--color-surface-2); border: 1px solid var(--color-border-2);
  border-radius: var(--radius-0); padding: 22px 20px; }
.price-tier.is-featured { border-color: var(--section-accent);
  box-shadow: 0 0 0 1px var(--section-accent), 0 0 26px -8px color-mix(in srgb, var(--section-accent) 55%, transparent);
  background: color-mix(in srgb, var(--section-accent) 5%, var(--color-surface-2)); }
.price-rec { position: absolute; inset-block-start: -1px; inset-inline-end: -1px;
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--text-on-accent); background: var(--section-accent); padding: 4px 9px; }
.price-name { font-family: var(--font-display); font-style: italic; font-weight: 700; text-transform: uppercase;
  letter-spacing: var(--tracking-tight); font-size: 18px; color: var(--color-white); }
.price-amt { display: flex; align-items: baseline; gap: 4px; font-variant-numeric: tabular-nums; }
.price-amt .cur { align-self: flex-start; margin-block-start: 5px; font-family: var(--font-mono); font-size: 15px; color: var(--color-muted); }
.price-amt .num { font-family: var(--font-display); font-style: italic; font-weight: 700; font-size: 42px; line-height: 1; color: var(--color-white); }
.price-amt .num .yr { display: none; }
.price-amt .per { font-family: var(--font-mono); font-size: 11px; color: var(--color-muted); }
.pricing:has(#bill-annual:checked) .price-amt .num .mo { display: none; }
.pricing:has(#bill-annual:checked) .price-amt .num .yr { display: inline; }
.price-desc { font-family: var(--font-mono); font-size: 11.5px; line-height: 1.6; color: var(--color-faint); }
.price-feats { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.price-feats li { display: flex; align-items: flex-start; gap: 9px; font-size: 13px; color: var(--color-text); line-height: 1.45; }
.price-feats li .ob-icon { flex: none; margin-block-start: 1px; color: var(--section-accent); }
.price-feats li.is-off { color: var(--color-ghost); }
.price-feats li.is-off .ob-icon { color: var(--color-ghost); }
.price-tier .btn-tech, .price-tier .btn-ghost { margin-block-start: auto; }

/* ===========================================================================
   25. DATE PICKER — a calendar popover for scheduled skills (📅 task dates). The
   selected day reads as an accent ring + weak tint + accent text (never a solid
   accent fill — §2); today carries a small accent dot under the numeral. Numerals
   are mono tabular. Rendered by preview/datepicker.js (zero-dependency); the
   markup degrades to a static <input type="date"> with no JS.
     <div class="datepicker" data-datepicker> <div class="dp-head">…</div>
       <div class="dp-grid">…</div> <div class="dp-foot">…</div> </div>
   --------------------------------------------------------------------------- */
.datepicker { width: 286px; max-width: 100%; box-sizing: border-box;
  background: var(--bg-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-0); padding: 14px; box-shadow: var(--shadow-overlay); }
.dp-head { display: flex; align-items: center; justify-content: space-between; margin-block-end: 12px; }
.dp-title { font-family: var(--font-display); font-style: italic; font-weight: 700; text-transform: uppercase;
  letter-spacing: var(--tracking-tight); font-size: 14px; color: var(--color-white); }
.dp-nav { display: flex; gap: 4px; }
.dp-nav button { width: 30px; height: 30px; display: grid; place-content: center; cursor: pointer;
  background: transparent; border: 1px solid var(--color-border); color: var(--color-muted);
  border-radius: var(--radius-0); transition: border-color var(--dur-fast) var(--ease-out-expo), color var(--dur-fast) var(--ease-out-expo); }
.dp-nav button:hover { border-color: var(--section-accent); color: var(--section-accent); }
.dp-nav button:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.dp-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.dp-dow { font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--color-ghost); text-align: center; padding: 4px 0; }
.dp-day { position: relative; aspect-ratio: 1; display: grid; place-content: center; cursor: pointer;
  font-family: var(--font-mono); font-size: 12.5px; font-variant-numeric: tabular-nums; color: var(--color-text);
  background: transparent; border: 1px solid transparent; border-radius: var(--radius-0);
  transition: background var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo); }
.dp-day:hover { border-color: var(--color-border); background: var(--color-surface-2); }
.dp-day.is-out { color: var(--color-ghost); }
.dp-day.is-today::after { content: ''; position: absolute; inset-block-end: 3px; inset-inline-start: 50%;
  transform: translateX(-50%); width: 3px; height: 3px; border-radius: 50%; background: var(--section-accent); }
.dp-day.is-selected { border-color: var(--section-accent); color: var(--section-accent); font-weight: 600;
  background: color-mix(in srgb, var(--section-accent) 14%, transparent); }
.dp-day:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: -1px; }
.dp-foot { display: flex; align-items: center; justify-content: space-between; margin-block-start: 12px;
  padding-block-start: 10px; border-top: 1px solid var(--color-border-2);
  font-family: var(--font-mono); font-size: 11px; color: var(--color-muted); }
.dp-foot b { color: var(--section-accent); font-weight: 500; }

/* ===========================================================================
   26. NOTIFICATION CENTER — a panel listing activity / sub-agent events. Unread
   rows carry an accent-ringed icon + an accent dot; read rows dim the dot. The
   header shows an unread count pill + a "Mark all read" action. Dismiss + mark
   read are wired by preview/ui-actions.js ([data-dismiss] / [data-notif-read]).
     <div class="notif-center"> <div class="notif-head">…</div>
       <div class="notif-list"> <article class="notif is-unread">…</article> </div> </div>
   --------------------------------------------------------------------------- */
.notif-center { width: 360px; max-width: 100%; box-sizing: border-box; overflow: hidden;
  background: var(--bg-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-0); box-shadow: var(--shadow-overlay); }
.notif-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--color-border); }
.notif-head .nh-title { font-family: var(--font-display); font-style: italic; font-weight: 700; text-transform: uppercase;
  letter-spacing: var(--tracking-tight); font-size: 14px; color: var(--color-white); }
.notif-head .nh-count { font-family: var(--font-mono); font-size: 10px; min-width: 18px; padding: 2px 6px; text-align: center;
  color: var(--text-on-accent); background: var(--section-accent); border-radius: var(--radius-pill); }
.notif-head .nh-action { margin-inline-start: auto; font-family: var(--font-mono); font-size: 11px; cursor: pointer;
  color: var(--text-link); background: transparent; border: 0; }
.notif-head .nh-action:hover { color: var(--section-accent); }
.notif-list { max-height: 348px; overflow-y: auto; }
.notif { position: relative; display: flex; gap: 11px; padding: 12px 14px; border-bottom: 1px solid var(--color-border-2);
  transition: background var(--dur-fast) var(--ease-out-expo); }
.notif:hover { background: var(--color-surface-2); }
.notif-ic { flex: none; width: 30px; height: 30px; display: grid; place-content: center;
  border: 1px solid var(--color-border); color: var(--color-muted); }
.notif.is-unread .notif-ic { border-color: var(--section-accent); color: var(--section-accent); }
.notif-body { flex: 1; min-width: 0; }
.notif-title { font-size: 13px; line-height: 1.4; color: var(--color-text); }
.notif-title b { font-weight: 600; color: var(--color-white); }
.notif-meta { margin-block-start: 3px; font-family: var(--font-mono); font-size: 10.5px; color: var(--color-ghost); }
.notif-dot { flex: none; align-self: center; width: 7px; height: 7px; border-radius: 50%; background: var(--section-accent); }
.notif:not(.is-unread) .notif-dot { visibility: hidden; }
.notif-x { flex: none; align-self: flex-start; width: 24px; height: 24px; display: grid; place-content: center; cursor: pointer;
  background: transparent; border: 1px solid transparent; color: var(--color-ghost); border-radius: var(--radius-0);
  transition: color var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo); }
.notif-x:hover { color: var(--section-accent); border-color: var(--color-border); }
.notif-x:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 1px; }

/* ===========================================================================
   27. RESIZABLE PANES — a draggable split layout for console / inspector views.
   The .resizer splitter brightens to the section accent on hover / drag and has
   a fat invisible hit area. Drag is wired by preview/resizable.js (pointer
   events, honors a pane min-width); with no JS the panes simply sit side by side.
     <div class="resizable" data-resizable>
       <div class="pane">…</div> <div class="resizer" role="separator"></div> <div class="pane">…</div>
     </div>
   --------------------------------------------------------------------------- */
.resizable { display: flex; align-items: stretch; height: 280px; overflow: hidden;
  border: 1px solid var(--color-border); border-radius: var(--radius-0); background: var(--color-surface); }
.resizable .pane { min-width: 84px; overflow: auto; padding: 14px; }
.resizable .pane-fixed { flex: none; }
.resizable .pane-fill { flex: 1; }
.resizer { position: relative; flex: none; width: 7px; cursor: col-resize; touch-action: none;
  background: var(--color-border-2); transition: background var(--dur-fast) var(--ease-out-expo); }
.resizer::before { content: ''; position: absolute; inset: 0 -4px; }
.resizer::after { content: ''; position: absolute; inset-block-start: 50%; inset-inline-start: 50%;
  transform: translate(-50%, -50%); width: 2px; height: 22px; border-radius: 2px; background: var(--color-ghost);
  transition: background var(--dur-fast) var(--ease-out-expo); }
.resizer:hover, .resizer.is-drag { background: color-mix(in srgb, var(--section-accent) 32%, transparent); }
.resizer:hover::after, .resizer.is-drag::after { background: var(--section-accent); }
.resizer:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 1px; }

/* ===========================================================================
   28. EMOJI PICKER — a category-tabbed emoji grid for reactions / note tagging.
   Emoji here are content (the picker's whole purpose), not UI chrome — the tabs,
   search, and footer stay on the system's type + accent language, while the grid
   holds real emoji. Rendered by preview/emoji-picker.js (search, categories,
   recents, keyboard). Degrades to a plain text input with no JS.
     <div class="emoji-picker" data-emoji-picker> <div class="ep-search">…</div>
       <div class="ep-cats">…</div> <div class="ep-grid">…</div> <div class="ep-foot">…</div> </div>
   --------------------------------------------------------------------------- */
.emoji-picker { display: flex; flex-direction: column; width: 320px; max-width: 100%; box-sizing: border-box; overflow: hidden;
  background: var(--bg-elevated); border: 1px solid var(--color-border);
  border-radius: var(--radius-0); box-shadow: var(--shadow-overlay); }
.ep-search { padding: 10px; border-bottom: 1px solid var(--color-border-2); }
.ep-search input { width: 100%; box-sizing: border-box; height: 34px; padding: 0 10px;
  font-family: var(--font-mono); font-size: 12px; color: var(--color-text);
  background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-0);
  transition: border-color var(--dur-fast) var(--ease-out-expo), box-shadow var(--dur-fast) var(--ease-out-expo); }
.ep-search input::placeholder { color: var(--color-muted); }
.ep-search input:focus { outline: none; border-color: var(--section-accent);
  box-shadow: 0 0 0 1px var(--section-accent), 0 0 14px -4px var(--section-accent); }
.ep-cats { display: flex; gap: 2px; padding: 6px 8px; border-bottom: 1px solid var(--color-border-2); }
.ep-cat { flex: 1; height: 30px; display: grid; place-content: center; font-size: 15px; cursor: pointer; opacity: .55;
  background: transparent; border: 0; border-block-end: 2px solid transparent;
  transition: opacity var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo); }
.ep-cat:hover { opacity: 1; }
.ep-cat.is-active { opacity: 1; border-block-end-color: var(--section-accent); }
.ep-cat:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: -2px; }
.ep-cat-label { grid-column: 1 / -1; padding: 6px 4px 2px; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--color-ghost); }
.ep-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 1px; padding: 8px; max-height: 196px; overflow-y: auto; }
.ep-emoji { aspect-ratio: 1; display: grid; place-content: center; font-size: 19px; line-height: 1; cursor: pointer;
  background: transparent; border: 1px solid transparent; border-radius: var(--radius-0);
  transition: background var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo); }
.ep-emoji:hover { background: color-mix(in srgb, var(--section-accent) 14%, transparent); border-color: var(--section-accent); }
.ep-emoji:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: -1px; }
.ep-empty { grid-column: 1 / -1; padding: 18px 8px; text-align: center; font-family: var(--font-mono); font-size: 11px; color: var(--color-ghost); }
.ep-foot { display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 8px 12px; border-top: 1px solid var(--color-border-2); }
.ep-foot .ep-prev { font-size: 20px; line-height: 1; }
.ep-foot .ep-name { font-family: var(--font-mono); font-size: 11px; color: var(--color-muted); }

/* ---------------------------------------------------------------------------
   29. RATING — a star rating for note / resource quality. Every glyph is the
   same ★; .is-on colors it with the accent (the rating value follows the theme
   accent like the rest of the chrome) while empty stars stay on the border
   neutral. Interactive (hover preview + click + ←/→ keyboard) via preview/extras.js;
   add data-readonly for a static display rating. Stars are buttons → no JS = still
   semantic radio-like markup.
     <div class="rating" data-rating data-value="4"><span class="rating-stars">…★…</span>
       <span class="rating-value">4.0</span></div>
   --------------------------------------------------------------------------- */
.rating { display: inline-flex; align-items: center; }
.rating-stars { display: inline-flex; gap: 2px; }
.rating-star { width: 30px; height: 30px; display: grid; place-content: center; font-size: 21px; line-height: 1;
  padding: 0; background: transparent; border: 0; cursor: pointer; color: var(--color-border-strong, var(--color-border));
  transition: color var(--dur-fast) var(--ease-out-expo), transform var(--dur-fast) var(--ease-out-expo); }
.rating-star.is-on { color: var(--section-accent); text-shadow: 0 0 8px color-mix(in srgb, var(--section-accent) 50%, transparent); }
.rating-star:hover { transform: scale(1.15); }
.rating-star:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.rating[data-readonly] .rating-star { cursor: default; pointer-events: none; }
.rating-value { margin-inline-start: 8px; font-family: var(--font-mono); font-size: var(--text-sm);
  color: var(--color-muted); font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------------------
   30. COLOR PICKER — a generic swatch + hex field for tagging notes / projects
   (distinct from the theme accent picker, which re-keys the whole surface). The
   swatch IS the color, so a solid fill here is sanctioned (same exception as the
   accent picker); the SELECTED ring uses the accent so selection follows the
   theme. Synced by preview/extras.js; degrades to a plain hex <input> + native
   swatches with no JS.
     <div class="color-picker" data-color-picker><div class="cp-head">…</div>
       <div class="cp-swatches">…</div></div>
   --------------------------------------------------------------------------- */
.color-picker { display: inline-flex; flex-direction: column; gap: 12px; width: 252px; max-width: 100%; box-sizing: border-box;
  padding: 14px; background: var(--color-surface-2); border: 1px solid var(--color-border); border-radius: var(--radius-0); }
.cp-head { display: flex; align-items: center; gap: 10px; }
.cp-preview { width: 38px; height: 38px; flex: none; border: 1px solid var(--color-border-2); border-radius: var(--radius-0);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06); }
.cp-hex { flex: 1; min-width: 0; height: 36px; box-sizing: border-box; padding: 0 10px; text-transform: uppercase; letter-spacing: .04em;
  font-family: var(--font-mono); font-size: 12px; color: var(--color-text); background: var(--color-bg);
  border: 1px solid var(--color-border); border-radius: var(--radius-0);
  transition: border-color var(--dur-fast) var(--ease-out-expo), box-shadow var(--dur-fast) var(--ease-out-expo); }
.cp-hex:focus { outline: none; border-color: var(--section-accent); box-shadow: 0 0 0 1px var(--section-accent); }
.cp-swatches { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.cp-swatch { aspect-ratio: 1; padding: 0; cursor: pointer; position: relative; border: 1px solid var(--color-border-2);
  border-radius: var(--radius-0); transition: transform var(--dur-fast) var(--ease-out-expo); }
.cp-swatch:hover { transform: scale(1.12); }
.cp-swatch.is-sel { box-shadow: 0 0 0 2px var(--color-bg), 0 0 0 3px var(--section-accent); }
.cp-swatch:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* ---------------------------------------------------------------------------
   31. POPOVER — a click-triggered rich overlay (title + body + optional actions),
   distinct from the hover .tooltip. Built on native <details> so it works with no
   JS (click the summary to toggle); preview/extras.js adds outside-click + Esc
   dismiss. The arrow mirrors automatically (logical inset). Use for "what is this"
   affordances and inline confirmations.
     <details class="popover"><summary class="btn-ghost">Why?</summary>
       <div class="popover-panel"><div class="popover-title">…</div>…</div></details>
   --------------------------------------------------------------------------- */
.popover { position: relative; display: inline-block; }
.popover > summary { display: inline-flex; align-items: center; list-style: none; cursor: pointer; }
.popover > summary::-webkit-details-marker { display: none; }
.popover-panel { position: absolute; z-index: var(--z-dropdown); inset-block-start: calc(100% + 10px); inset-inline-start: 0;
  width: 264px; max-width: 80vw; box-sizing: border-box; padding: 14px 16px; background: var(--glass-fill-menu, var(--bg-elevated));
  backdrop-filter: var(--glass-blur-strong); -webkit-backdrop-filter: var(--glass-blur-strong);
  border: 1px solid var(--color-border); border-radius: var(--radius-0); box-shadow: var(--shadow-overlay);
  animation: pop-in var(--dur-fast) var(--ease-out-expo); }
.popover-panel::before { content: ""; position: absolute; inset-block-start: -5px; inset-inline-start: 18px; width: 9px; height: 9px;
  background: inherit; border-inline-start: 1px solid var(--color-border); border-block-start: 1px solid var(--color-border);
  transform: rotate(45deg); }
.popover-title { margin-block-end: 6px; font-family: var(--font-display); font-style: italic; text-transform: uppercase;
  font-size: var(--text-sm); letter-spacing: .02em; color: var(--color-white); }
.popover-body { font-family: var(--font-mono); font-size: var(--text-xs); line-height: 1.6; color: var(--color-faint); }
.popover-actions { display: flex; gap: 8px; margin-block-start: 12px; }
@keyframes pop-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }

/* ---------------------------------------------------------------------------
   32. CAROUSEL — a scroll-snap track of slides with prev/next + dot indicators,
   for testimonials / feature galleries / onboarding peeks. The track is CSS
   scroll-snap; preview/extras.js wires the buttons, dots, active sync, keyboard,
   and disables ctrls at the ends. Chevrons mirror under RTL (see §13). Honors
   reduced motion (no smooth scroll).
     <div class="carousel" data-carousel><div class="carousel-track">…slides…</div>
       <button class="carousel-ctrl carousel-prev">…</button>… <div class="carousel-dots"></div></div>
   --------------------------------------------------------------------------- */
.carousel { position: relative; box-sizing: border-box; padding-inline: 52px; }
.carousel-track { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  scrollbar-width: none; -ms-overflow-style: none; }
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-slide { flex: 0 0 100%; box-sizing: border-box; scroll-snap-align: start; }
.carousel-ctrl { position: absolute; inset-block-start: 50%; transform: translateY(-50%); width: 40px; height: 40px; z-index: 2;
  display: grid; place-content: center; padding: 0; cursor: pointer; color: var(--color-text);
  background: var(--glass-fill-menu, var(--bg-elevated)); backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong); border: 1px solid var(--color-border); border-radius: var(--radius-0);
  transition: border-color var(--dur-fast) var(--ease-out-expo), color var(--dur-fast) var(--ease-out-expo); }
.carousel-ctrl:hover { border-color: var(--section-accent); color: var(--section-accent); }
.carousel-ctrl:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.carousel-ctrl[disabled] { opacity: .3; cursor: default; }
.carousel-prev { inset-inline-start: 6px; }
.carousel-next { inset-inline-end: 6px; }
.carousel-ctrl svg { width: 20px; height: 20px; }
.carousel-dots { display: flex; justify-content: center; gap: 8px; margin-block-start: 16px; }
.carousel-dot { width: 8px; height: 8px; padding: 0; cursor: pointer; border: 0; border-radius: var(--radius-pill);
  background: var(--color-border-strong, var(--color-border));
  transition: background var(--dur-fast) var(--ease-out-expo), transform var(--dur-fast) var(--ease-out-expo); }
.carousel-dot.is-active { background: var(--section-accent); transform: scale(1.3); box-shadow: var(--glow-accent); }
.carousel-dot:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }

/* ---------------------------------------------------------------------------
   33. KEYBOARD SHORTCUT SHEET — a grouped reference of shortcuts (the kind a
   `?` overlay shows), reusing the .kbd primitive for the keys. Pure CSS, no JS.
   Numerals / keys stay LTR even inside RTL prose. Use inside a .modal for a real
   "keyboard help" surface.
     <div class="shortcut-sheet"><div class="shortcut-group"><div class="shortcut-group-label">…</div>
       <div class="shortcut-row"><span class="shortcut-label">…</span><span class="shortcut-keys">…</span></div></div></div>
   --------------------------------------------------------------------------- */
.shortcut-sheet { width: 100%; max-width: 520px; overflow: hidden; background: var(--color-surface-2);
  border: 1px solid var(--color-border); border-radius: var(--radius-0); }
.shortcut-group + .shortcut-group { border-block-start: 1px solid var(--color-border); }
.shortcut-group-label { padding: 13px 16px 6px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--color-ghost); }
.shortcut-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 9px 16px; }
.shortcut-row + .shortcut-row { border-block-start: 1px solid color-mix(in srgb, var(--color-border-2) 60%, transparent); }
.shortcut-label { font-size: var(--text-sm); color: var(--color-text); }
.shortcut-keys { display: inline-flex; align-items: center; gap: 4px; flex: none; }
.shortcut-keys .sk-plus { font-family: var(--font-mono); font-size: 11px; color: var(--color-ghost); }

/* a11y — the structure / content / common / advanced components honor reduced motion too. */
@media (prefers-reduced-motion: reduce) {
  .stepper-num, .tree-row, .tree-chevron, .code-copy,
  .banner-x, .toolbar-btn, .menu-item, .menu-item > .ob-icon,
  .combobox-field, .combobox-token button,
  .dp-nav button, .dp-day, .notif, .resizer, .resizer::after, .ep-cat, .ep-emoji, .ep-search input,
  .rating-star, .cp-swatch, .cp-hex, .carousel-ctrl, .carousel-dot { transition: none; }
  .menu-wrap[open] > .menu { animation: none; }
  .popover-panel { animation: none; }
  .carousel-track { scroll-behavior: auto; }
}