silo-server/web/src/app.css

@import "tailwindcss";

/* ================================================================
   § 1  THEME BRIDGE — Tailwind ↔ CSS Custom Properties
   ================================================================
   Maps semantic CSS variables (set per-theme below) into
   Tailwind's @theme system so they work as utility classes.
   e.g.  bg-background, text-foreground, border-border, etc.
   ================================================================ */

@theme inline {
  /* ── Surfaces ────────────────────────────────────────────── */
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-card: var(--card);
  --color-card-foreground: var(--card-foreground);
  --color-popover: var(--popover);
  --color-popover-foreground: var(--popover-foreground);
  --color-surface: var(--surface);
  --color-surface-hover: var(--surface-hover);
  --color-surface-raised: var(--surface-raised);

  /* ── Interactive ─────────────────────────────────────────── */
  --color-primary: var(--primary);
  --color-primary-foreground: var(--primary-foreground);
  --color-secondary: var(--secondary);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-muted: var(--muted);
  --color-muted-foreground: var(--muted-foreground);
  --color-accent: var(--accent);
  --color-accent-foreground: var(--accent-foreground);
  --color-destructive: var(--destructive);
  --color-destructive-foreground: var(--destructive-foreground);

  /* ── Status ────────────────────────────────────────────────── */
  --color-success: var(--success);
  --color-success-foreground: var(--success-foreground);
  --color-warning: var(--warning);
  --color-warning-foreground: var(--warning-foreground);
  --color-info: var(--info);
  --color-info-foreground: var(--info-foreground);

  /* ── Borders & Focus ─────────────────────────────────────── */
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);

  /* ── Charts ──────────────────────────────────────────────── */
  --color-chart-1: var(--chart-1);
  --color-chart-2: var(--chart-2);
  --color-chart-3: var(--chart-3);
  --color-chart-4: var(--chart-4);
  --color-chart-5: var(--chart-5);

  /* ── Sidebar ─────────────────────────────────────────────── */
  --color-sidebar: var(--sidebar);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-section-divider: var(--sidebar-section-divider);
  --color-sidebar-ring: var(--sidebar-ring);

  /* ── Border Radius ───────────────────────────────────────── */
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --radius-2xl: calc(var(--radius) + 8px);
  --radius-pill: 9999px;

  /* ── Shadows (dark-UI optimized) ─────────────────────────── */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.25);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.5);

  /* ── Animations ──────────────────────────────────────────── */
  --animate-accordion-down: accordion-down 0.2s ease-out;
  --animate-accordion-up: accordion-up 0.2s ease-out;
  --animate-fade-in: fade-in 0.3s ease-out;
  --animate-slide-up: slide-up 0.3s ease-out;
  --animate-scale-in: scale-in 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  --animate-ken-burns-a: ken-burns-a 14s linear infinite;
  --animate-ken-burns-b: ken-burns-b 18s linear infinite;

  /* ── Motion: Duration ──────────────────────────────────────── */
  --duration-instant: 0ms;
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-glacial: 700ms;
  --duration-cinematic: 1200ms;
  --duration-drift: 2000ms;

  /* ── Motion: Easing ────────────────────────────────────────── */
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-gentle: cubic-bezier(0.25, 0, 0.35, 1);

  /* ── Font Family ───────────────────────────────────────────── */
  --font-family-display: var(--font-display, var(--font-body));

  /* ── Hero Backdrop Defaults ─────────────────────────────────── */
  --hero-backdrop-brightness: 0.75;
  --hero-backdrop-saturate: 0.9;
  --hero-text-shadow: 0 18px 50px rgb(0 0 0 / 45%);
}

/* ================================================================
   § 2  KEYFRAMES
   ================================================================ */

@keyframes accordion-down {
  from {
    height: 0;
  }
  to {
    height: var(--radix-accordion-content-height);
  }
}
@keyframes accordion-up {
  from {
    height: var(--radix-accordion-content-height);
  }
  to {
    height: 0;
  }
}
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes pulse-opacity {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}
@keyframes fade-out {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}
@keyframes ken-burns-a {
  0% {
    transform: scale(1) translate(0, 0);
  }
  50% {
    transform: scale(1.06) translate(-0.5%, -0.3%);
  }
  100% {
    transform: scale(1) translate(0, 0);
  }
}
@keyframes ken-burns-b {
  0% {
    transform: scale(1.04) translate(0.3%, 0);
  }
  50% {
    transform: scale(1) translate(-0.3%, 0.2%);
  }
  100% {
    transform: scale(1.04) translate(0.3%, 0);
  }
}

/* Soft radiating halo used behind the centered play button while paused —
   communicates "tap to resume" without distracting during playback.      */
@keyframes player-breathe {
  0%,
  100% {
    box-shadow:
      0 0 0 0 rgb(255 255 255 / 0.22),
      0 20px 60px -18px rgb(0 0 0 / 0.7),
      inset 0 1px 0 rgb(255 255 255 / 0.7);
  }
  60% {
    box-shadow:
      0 0 0 18px rgb(255 255 255 / 0),
      0 20px 60px -18px rgb(0 0 0 / 0.7),
      inset 0 1px 0 rgb(255 255 255 / 0.7);
  }
}

/* Cinematic reveal for the floating control cluster — fades in slightly
   below its resting position when controls become visible. Pairs with the
   opacity transition applied via Tailwind utilities.                      */
@keyframes player-rise {
  from {
    opacity: 0;
    transform: translateY(6px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ================================================================
   VIEW TRANSITIONS — Page navigation animations
   ================================================================
   Uses the View Transitions API for smooth cross-fades between
   route changes. The browser captures old/new page snapshots
   and animates between them.
   ================================================================ */

::view-transition-old(main-content) {
  animation: 200ms cubic-bezier(0, 0, 0.2, 1) both fade-out;
}

::view-transition-new(main-content) {
  animation: 300ms cubic-bezier(0, 0, 0.2, 1) both slide-up;
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(main-content),
  ::view-transition-new(main-content) {
    animation: none;
  }
  :root {
    --duration-fast: 0ms;
    --duration-normal: 0ms;
    --duration-cinematic: 0ms;
    --duration-drift: 0ms;
    --duration-glacial: 0ms;
    --duration-slow: 150ms;
    --animate-ken-burns-a: none;
    --animate-ken-burns-b: none;
  }
  .ambient-glow {
    transition: none;
  }
  .sidebar-transition,
  .main-transition {
    transition: none;
  }
  .player-breathe,
  .player-rise {
    animation: none !important;
  }
}

@media (forced-colors: active) {
  * {
    forced-color-adjust: auto;
  }
}

/* ================================================================
   § 3  THEME DEFINITIONS
   ================================================================
   Each theme sets ALL semantic tokens. Themes are activated via
   the data-theme attribute on <html>.

   Token naming conventions:
     --background       Page background (darkest main surface)
     --foreground       Primary text color
     --surface          Default card/panel surface
     --surface-hover    Surface on hover
     --surface-raised   Elevated surface (modals, floating panels)
     --card             Card background (usually = surface)
     --primary          Primary accent/action color
     --secondary        Secondary element backgrounds
     --muted            Muted backgrounds
     --accent           Active/highlighted element backgrounds
     --destructive      Danger/error color
     --border           Default border color
     --sidebar          Sidebar background (often darkest surface)
   ================================================================ */

@layer base {
  /* ── Global Status Tokens ──────────────────────────────────
     Semantic status colors used across all themes. Individual
     themes may override these if needed.
     ───────────────────────────────────────────────────────── */
  :root {
    --success: oklch(0.75 0.18 145);
    --success-foreground: oklch(0.98 0.01 145);
    --warning: oklch(0.8 0.15 85);
    --warning-foreground: oklch(0.98 0.01 85);
    --info: oklch(0.7 0.15 250);
    --info-foreground: oklch(0.98 0.01 250);
  }

  /* ── Midnight Cinema ────────────────────────────────────── */
  /* Inspired by premium streaming UIs: monochromatic, cinematic,
     content-focused. White primary creates an elegant, theater-like
     atmosphere where media artwork is the star.                    */
  [data-theme="midnight-cinema"] {
    --radius: 0.75rem;
    --font-body: "Outfit", sans-serif;
    --font-display: "Outfit", sans-serif;

    /* Surfaces: near-black with subtle cool undertone */
    --background: #141417;
    --foreground: #e8e8ec;
    --card: #1c1c20;
    --card-foreground: #e8e8ec;
    --popover: #18181c;
    --popover-foreground: #e8e8ec;

    /* Primary: white — for play buttons, key CTAs, active indicators */
    --primary: #e8e8ec;
    --primary-foreground: #141417;

    /* Secondary & Muted: subtle surface variations */
    --secondary: #232328;
    --secondary-foreground: #d0d0d6;
    --muted: #1c1c20;
    /* Lightened from #6e6e78 (~3.4:1) to meet WCAG AA: ~6.3:1 on --background,
       ~5.3:1 even on the lightest chip surface (#232328). */
    --muted-foreground: #9696a0;
    --accent: #232328;
    --accent-foreground: #e8e8ec;

    /* Destructive: warm red for danger actions */
    --destructive: #ef4444;
    --destructive-foreground: #ffffff;

    /* Borders: barely visible, just enough structure */
    --border: #28282e;
    --input: #1c1c20;
    --ring: #e8e8ec;

    /* Charts: desaturated pastels that fit the cinema aesthetic */
    --chart-1: #8b9cf7;
    --chart-2: #7ec8e3;
    --chart-3: #81c995;
    --chart-4: #e8a87c;
    --chart-5: #c78dbd;

    /* Sidebar: darkest surface, creating depth */
    --sidebar: #0f0f12;
    --sidebar-foreground: #e8e8ec;
    --sidebar-primary: #e8e8ec;
    --sidebar-primary-foreground: #0f0f12;
    --sidebar-accent: #1c1c20;
    --sidebar-accent-foreground: #e8e8ec;
    --sidebar-border: #232328;
    --sidebar-section-divider: #2e2e35;
    --sidebar-ring: #e8e8ec;

    /* Surfaces: layered depth */
    --surface: #1c1c20;
    --surface-hover: #232328;
    --surface-raised: #28282e;
    --ambient: #e8e8ec;
    --ambient-glow-opacity: 0.08;
  }

  [data-theme="cinema-light"] {
    --radius: 0.75rem;
    --font-body: "Outfit", sans-serif;
    --font-display: "Outfit", sans-serif;

    /* Surfaces: warm off-white with cool undertone */
    --background: #f4f4f6;
    --foreground: #1a1a1e;
    --card: #ffffff;
    --card-foreground: #1a1a1e;
    --popover: #ffffff;
    --popover-foreground: #1a1a1e;

    /* Primary: near-black — inverted from Cinema Dark */
    --primary: #1a1a1e;
    --primary-foreground: #f4f4f6;

    /* Secondary & Muted: subtle surface variations */
    --secondary: #e8e8ec;
    --secondary-foreground: #3a3a42;
    --muted: #ebebef;
    /* Darkened from #78787f (~4.0:1) to meet WCAG AA on light surfaces
       (~4.9:1 on the #e8e8ec chip, ~5.4:1 on --background). */
    --muted-foreground: #63636b;
    --accent: #e8e8ec;
    --accent-foreground: #1a1a1e;

    /* Destructive: warm red for danger actions */
    --destructive: #dc2626;
    --destructive-foreground: #ffffff;

    /* Borders: soft gray, enough structure without weight */
    --border: #d8d8de;
    --input: #e8e8ec;
    --ring: #1a1a1e;

    /* Charts: richer tones for light backgrounds */
    --chart-1: #6366f1;
    --chart-2: #0ea5e9;
    --chart-3: #22c55e;
    --chart-4: #f59e0b;
    --chart-5: #a855f7;

    /* Sidebar: slightly darker than background for depth */
    --sidebar: #eaeaee;
    --sidebar-foreground: #1a1a1e;
    --sidebar-primary: #1a1a1e;
    --sidebar-primary-foreground: #f4f4f6;
    --sidebar-accent: #dfdfe5;
    --sidebar-accent-foreground: #1a1a1e;
    --sidebar-border: #d0d0d8;
    --sidebar-section-divider: #c2c2cc;
    --sidebar-ring: #1a1a1e;

    /* Surfaces: layered depth */
    --surface: #ebebef;
    --surface-hover: #e0e0e6;
    --surface-raised: #ffffff;
    --ambient: #1a1a1e;
    --ambient-glow-opacity: 0.05;

    /* Hero: light-mode overrides */
    --hero-backdrop-brightness: 1.15;
    --hero-backdrop-saturate: 0.6;
    --hero-text-shadow: 0 1px 3px rgb(255 255 255 / 60%);
  }

  [data-theme="cobalt-studio"] {
    --radius: 0.75rem;
    --font-body: "Outfit", sans-serif;
    --font-display: "Outfit", sans-serif;
    --background: #101722;
    --foreground: #f4f8ff;
    --card: #151e2b;
    --card-foreground: #f4f8ff;
    --popover: #121a25;
    --popover-foreground: #f4f8ff;
    --primary: #78aefc;
    --primary-foreground: #0f1722;
    --secondary: #1b2634;
    --secondary-foreground: #d7e2f1;
    --muted: #151e2b;
    --muted-foreground: #90a0b5;
    --accent: #203043;
    --accent-foreground: #f4f8ff;
    --destructive: #ef6b73;
    --destructive-foreground: #ffffff;
    --border: #28384d;
    --input: #182231;
    --ring: #78aefc;
    --chart-1: #78aefc;
    --chart-2: #87d2ff;
    --chart-3: #6ec7ba;
    --chart-4: #b9c7ff;
    --chart-5: #f18d8d;
    --sidebar: #0c131d;
    --sidebar-foreground: #f4f8ff;
    --sidebar-primary: #78aefc;
    --sidebar-primary-foreground: #0f1722;
    --sidebar-accent: #172231;
    --sidebar-accent-foreground: #f4f8ff;
    --sidebar-border: #1f2a39;
    --sidebar-section-divider: #283a4e;
    --sidebar-ring: #78aefc;
    --surface: #151e2b;
    --surface-hover: #1d2a3b;
    --surface-raised: #223245;
    --ambient: #78aefc;
    --ambient-glow-opacity: 0.11;
  }

  [data-theme="oxblood-noir"] {
    --radius: 0.75rem;
    --font-body: "Outfit", sans-serif;
    --font-display: "Outfit", sans-serif;
    --background: #171113;
    --foreground: #f8f2f3;
    --card: #20181b;
    --card-foreground: #f8f2f3;
    --popover: #1b1417;
    --popover-foreground: #f8f2f3;
    --primary: #d16a78;
    --primary-foreground: #180f12;
    --secondary: #281d21;
    --secondary-foreground: #decfd2;
    --muted: #20181b;
    --muted-foreground: #a28e95;
    --accent: #322228;
    --accent-foreground: #f8f2f3;
    --destructive: #f08080;
    --destructive-foreground: #ffffff;
    --border: #3b2830;
    --input: #251a1f;
    --ring: #d16a78;
    --chart-1: #d16a78;
    --chart-2: #f08e7a;
    --chart-3: #c8a0b8;
    --chart-4: #8aa0c6;
    --chart-5: #e1b86e;
    --sidebar: #120d0f;
    --sidebar-foreground: #f8f2f3;
    --sidebar-primary: #d16a78;
    --sidebar-primary-foreground: #180f12;
    --sidebar-accent: #21161a;
    --sidebar-accent-foreground: #f8f2f3;
    --sidebar-border: #2c1d23;
    --sidebar-section-divider: #3a252e;
    --sidebar-ring: #d16a78;
    --surface: #20181b;
    --surface-hover: #2a2025;
    --surface-raised: #34262c;
    --ambient: #d16a78;
    --ambient-glow-opacity: 0.11;
  }

  [data-theme="evergreen-studio"] {
    --radius: 0.75rem;
    --font-body: "Outfit", sans-serif;
    --font-display: "Outfit", sans-serif;
    --background: #101715;
    --foreground: #f2f8f5;
    --card: #16201d;
    --card-foreground: #f2f8f5;
    --popover: #131b19;
    --popover-foreground: #f2f8f5;
    --primary: #5bc39d;
    --primary-foreground: #0d1513;
    --secondary: #1b2824;
    --secondary-foreground: #d1e0d9;
    --muted: #16201d;
    --muted-foreground: #91a39c;
    --accent: #20322d;
    --accent-foreground: #f2f8f5;
    --destructive: #f07a7a;
    --destructive-foreground: #ffffff;
    --border: #284038;
    --input: #182420;
    --ring: #5bc39d;
    --chart-1: #5bc39d;
    --chart-2: #7dd8bd;
    --chart-3: #7eb7a4;
    --chart-4: #88a9cf;
    --chart-5: #e0b66b;
    --sidebar: #0c1210;
    --sidebar-foreground: #f2f8f5;
    --sidebar-primary: #5bc39d;
    --sidebar-primary-foreground: #0d1513;
    --sidebar-accent: #16221e;
    --sidebar-accent-foreground: #f2f8f5;
    --sidebar-border: #1d2f2a;
    --sidebar-section-divider: #253d35;
    --sidebar-ring: #5bc39d;
    --surface: #16201d;
    --surface-hover: #1e2b27;
    --surface-raised: #263732;
    --ambient: #5bc39d;
    --ambient-glow-opacity: 0.1;
  }
}

/* ================================================================
   § 4  BASE STYLES
   ================================================================ */

@layer base {
  * {
    border-color: var(--border);
  }
  html {
    font-size: 16px;
    font-weight: 400;
    --ui-text-scale-factor: 1;
  }
  html[data-text-scale="large"] {
    font-size: 18px;
    --ui-text-scale-factor: 1.12;
  }
  html[data-text-scale="x-large"] {
    font-size: 20px;
    --ui-text-scale-factor: 1.24;
  }
  html[data-text-weight="strong"] {
    --font-weight-ui: 520;
    --font-weight-medium-ui: 600;
    --font-weight-semibold-ui: 700;
    --font-weight-bold-ui: 800;
  }
  html[data-text-weight="default"] {
    --font-weight-ui: 400;
    --font-weight-medium-ui: 500;
    --font-weight-semibold-ui: 600;
    --font-weight-bold-ui: 700;
  }
  html[data-high-contrast="true"] {
    --foreground: #ffffff;
    --ring: oklch(0.95 0 0);
    --muted-foreground: color-mix(in srgb, white 72%, var(--muted-foreground));
    --border: color-mix(in srgb, white 34%, var(--border));
    --input: color-mix(in srgb, white 16%, var(--input));
    --surface: color-mix(in srgb, white 10%, var(--surface));
    --surface-hover: color-mix(in srgb, white 16%, var(--surface-hover));
    --surface-raised: color-mix(in srgb, white 20%, var(--surface-raised));
    --accent: color-mix(in srgb, white 14%, var(--accent));
    --ambient-glow-opacity: 0.04;
  }
  html[data-high-contrast="true"] .surface-panel-subtle,
  html[data-high-contrast="true"] .surface-panel,
  html[data-high-contrast="true"] .glass,
  html[data-high-contrast="true"] .glass-subtle {
    border-color: color-mix(in srgb, var(--border) 88%, white 12%);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.08),
      0 12px 36px -24px rgb(0 0 0 / 0.75);
  }
  html[data-high-contrast="true"] .text-muted-foreground {
    color: var(--muted-foreground) !important;
  }
  html[data-high-contrast="true"] .border-border,
  html[data-high-contrast="true"] .border-border\/50,
  html[data-high-contrast="true"] .border-border\/60,
  html[data-high-contrast="true"] .border-border\/70,
  html[data-high-contrast="true"] .border-border\/80 {
    border-color: var(--border) !important;
  }
  html[data-text-weight="strong"] .font-medium {
    font-weight: var(--font-weight-medium-ui, 600) !important;
  }
  html[data-text-weight="strong"] .font-semibold {
    font-weight: var(--font-weight-semibold-ui, 700) !important;
  }
  html[data-text-weight="strong"] .font-bold {
    font-weight: var(--font-weight-bold-ui, 800) !important;
  }
  html[data-text-scale="large"] .text-\[8px\],
  html[data-text-scale="x-large"] .text-\[8px\] {
    font-size: calc(8px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[9px\],
  html[data-text-scale="x-large"] .text-\[9px\] {
    font-size: calc(9px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[10px\],
  html[data-text-scale="x-large"] .text-\[10px\] {
    font-size: calc(10px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[11px\],
  html[data-text-scale="x-large"] .text-\[11px\] {
    font-size: calc(11px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[12px\],
  html[data-text-scale="x-large"] .text-\[12px\] {
    font-size: calc(12px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[13px\],
  html[data-text-scale="x-large"] .text-\[13px\] {
    font-size: calc(13px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[14px\],
  html[data-text-scale="x-large"] .text-\[14px\] {
    font-size: calc(14px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[15px\],
  html[data-text-scale="x-large"] .text-\[15px\] {
    font-size: calc(15px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[17px\],
  html[data-text-scale="x-large"] .text-\[17px\] {
    font-size: calc(17px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[20px\],
  html[data-text-scale="x-large"] .text-\[20px\] {
    font-size: calc(20px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[28px\],
  html[data-text-scale="x-large"] .text-\[28px\] {
    font-size: calc(28px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[32px\],
  html[data-text-scale="x-large"] .text-\[32px\] {
    font-size: calc(32px * var(--ui-text-scale-factor)) !important;
  }
  html[data-text-scale="large"] .text-\[38px\],
  html[data-text-scale="x-large"] .text-\[38px\] {
    font-size: calc(38px * var(--ui-text-scale-factor)) !important;
  }
  body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: var(--font-body);
    font-weight: var(--font-weight-ui, 400);
    background-image:
      radial-gradient(
        circle at top,
        color-mix(in srgb, var(--ambient) 10%, transparent),
        transparent 32%
      ),
      linear-gradient(
        to bottom,
        color-mix(in srgb, var(--background) 92%, transparent),
        var(--background)
      );
    min-height: 100dvh;
  }
}

/* ================================================================
   § 5  COMPONENT UTILITY CLASSES
   ================================================================
   Reusable patterns extracted from the design system.
   See ../docs/design-system.md for pattern documentation.
   ================================================================ */

@layer components {
  /* ── Hero Gradient ───────────────────────────────────────── */
  /* Place over a hero/backdrop image to create a cinematic
     bottom-to-top gradient fade into the page background.
     Usage:
       <div class="relative">
         <img ... />
         <div class="hero-gradient" />
         <div class="hero-gradient-radial" />  // optional vignette
       </div>                                                    */
  .hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(
      to top,
      var(--background) 0%,
      color-mix(in srgb, var(--background) 92%, transparent) 20%,
      color-mix(in srgb, var(--background) 55%, transparent) 50%,
      color-mix(in srgb, var(--background) 20%, transparent) 75%,
      transparent 100%
    );
    pointer-events: none;
  }

  .hero-gradient-radial {
    position: absolute;
    inset: 0;
    background: radial-gradient(
      ellipse at center,
      transparent 0%,
      color-mix(in srgb, var(--background) 30%, transparent) 70%,
      var(--background) 100%
    );
    pointer-events: none;
  }

  /* Side gradient — fades from left edge for sidebar overlap */
  .hero-gradient-left {
    position: absolute;
    inset: 0;
    background: linear-gradient(
      to right,
      var(--background) 0%,
      color-mix(in srgb, var(--background) 80%, transparent) 20%,
      color-mix(in srgb, var(--background) 40%, transparent) 40%,
      transparent 60%
    );
    pointer-events: none;
  }

  .hero-vignette {
    position: absolute;
    inset: 0;
    background:
      linear-gradient(
        90deg,
        color-mix(in srgb, var(--background) 92%, transparent) 0%,
        color-mix(in srgb, var(--background) 64%, transparent) 28%,
        transparent 58%
      ),
      linear-gradient(
        to top,
        var(--background) 0%,
        color-mix(in srgb, var(--background) 75%, transparent) 28%,
        transparent 62%
      );
    pointer-events: none;
  }

  /* Stronger bottom fade for edge-to-edge marquee heroes. The hero
     should melt into the page background rather than stop against a
     border — background reaches full opacity by ~35% up the frame.   */
  .hero-gradient-strong {
    position: absolute;
    inset: 0;
    background: linear-gradient(
      to top,
      var(--background) 0%,
      var(--background) 12%,
      color-mix(in srgb, var(--background) 88%, transparent) 30%,
      color-mix(in srgb, var(--background) 55%, transparent) 55%,
      color-mix(in srgb, var(--background) 18%, transparent) 80%,
      transparent 100%
    );
    pointer-events: none;
  }

  /* Top scrim for the overlay marquee header — keeps eyebrow / tabs
     legible over bright backdrops without a hard bar.                */
  .hero-top-scrim {
    position: absolute;
    inset: 0 0 auto 0;
    height: 180px;
    background: linear-gradient(
      to bottom,
      color-mix(in srgb, var(--background) 70%, transparent) 0%,
      color-mix(in srgb, var(--background) 30%, transparent) 55%,
      transparent 100%
    );
    pointer-events: none;
  }

  /* ── Ambient Glow ──────────────────────────────────────────── */
  /* Radial gradient overlay tinted by --ambient color. Applied to
     hero sections for atmospheric color bleed from featured content.
     Usage: <div class="ambient-glow" />  (sibling to hero-gradient) */
  .ambient-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(
      ellipse at 50% 80%,
      var(--ambient, var(--primary)) 0%,
      transparent 70%
    );
    opacity: var(--ambient-glow-opacity, 0.12);
    pointer-events: none;
    transition:
      background var(--duration-cinematic) var(--ease-gentle),
      opacity var(--duration-cinematic) var(--ease-gentle);
  }

  /* ── Sidebar Immersion Transitions ─────────────────────────── */
  .sidebar-transition {
    transition: width var(--duration-normal) var(--ease-default);
    overflow: hidden;
  }
  .main-transition {
    transition: margin-left var(--duration-normal) var(--ease-default);
  }

  /* ── Sidebar Scrollbar ────────────────────────────────────── */
  /* Thin, auto-hiding scrollbar that blends with the sidebar.  */
  .sidebar-scroll {
    scrollbar-width: thin;
    scrollbar-color: transparent transparent;
    transition: scrollbar-color 0.2s ease;
  }
  .sidebar-scroll:hover {
    scrollbar-color: color-mix(in srgb, var(--sidebar-foreground) 20%, transparent) transparent;
  }
  /* WebKit (Chrome, Safari, Edge) */
  .sidebar-scroll::-webkit-scrollbar {
    width: 6px;
  }
  .sidebar-scroll::-webkit-scrollbar-track {
    background: transparent;
  }
  .sidebar-scroll::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 3px;
    transition: background 0.2s ease;
  }
  .sidebar-scroll:hover::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--sidebar-foreground) 20%, transparent);
  }
  .sidebar-scroll:hover::-webkit-scrollbar-thumb:hover {
    background: color-mix(in srgb, var(--sidebar-foreground) 35%, transparent);
  }

  /* ── Overlay Scrollbar ─────────────────────────────────── */
  /* Thin, subtle scrollbar for dialogs and overlay panels.   */
  .overlay-scroll {
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--foreground) 15%, transparent) transparent;
  }
  .overlay-scroll::-webkit-scrollbar {
    width: 6px;
  }
  .overlay-scroll::-webkit-scrollbar-track {
    background: transparent;
  }
  .overlay-scroll::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--foreground) 15%, transparent);
    border-radius: 3px;
  }
  .overlay-scroll::-webkit-scrollbar-thumb:hover {
    background: color-mix(in srgb, var(--foreground) 30%, transparent);
  }

  /* ── Glass Surfaces ──────────────────────────────────────── */
  /* Frosted glass effect for floating controls, overlay panels.
     Usage: <div class="glass">...</div>                        */
  .glass {
    background: color-mix(in srgb, var(--surface) 70%, transparent);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.06),
      0 20px 50px -28px rgb(0 0 0 / 0.65);
  }

  .glass-subtle {
    background: color-mix(in srgb, var(--surface) 40%, transparent);
    backdrop-filter: blur(12px) saturate(1.1);
    -webkit-backdrop-filter: blur(12px) saturate(1.1);
    border: 1px solid color-mix(in srgb, var(--border) 30%, transparent);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.05);
  }

  /* Less-transparent glass for small chips that sit over busy cover art
     (manga count/status pills) so the label stays legible. */
  .glass-chip {
    background: color-mix(in srgb, var(--surface) 78%, transparent);
    backdrop-filter: blur(12px) saturate(1.1);
    -webkit-backdrop-filter: blur(12px) saturate(1.1);
    border: 1px solid color-mix(in srgb, var(--border) 45%, transparent);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.06);
  }

  /* ── Terminal Surface ──────────────────────────────────────── */
  /* Scoped terminal aesthetic for ffmpeg console and similar.
     Usage: <div class="terminal-surface">...</div>              */
  .terminal-surface {
    --terminal-bg: oklch(0.15 0.01 260);
    --terminal-fg: oklch(0.85 0.15 155);
    --terminal-muted: oklch(0.65 0.1 155);
    --terminal-border: oklch(0.3 0.05 155);
  }

  .glass-dark {
    background: color-mix(in srgb, var(--background) 80%, transparent);
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    border: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.04),
      0 24px 60px -30px rgb(0 0 0 / 0.72);
  }

  /* ── Video Player — Cinema Glass ─────────────────────────────
     Bespoke surfaces for the floating player HUD. Lives on a
     black void (always on top of a video) so tokens here are
     hard-coded monochrome — independent of the app's theme.     */

  /* Primary play/pause disc — sits at the center of the frame. */
  .player-disc-primary {
    background: linear-gradient(180deg, #ffffff 0%, #f3f3f5 100%);
    color: #0a0a0b;
    box-shadow:
      0 20px 60px -18px rgb(0 0 0 / 0.7),
      inset 0 1px 0 rgb(255 255 255 / 0.7);
    transition:
      transform var(--duration-fast) var(--ease-spring),
      box-shadow var(--duration-normal) var(--ease-default),
      background var(--duration-fast) var(--ease-default);
  }
  .player-disc-primary:hover {
    transform: scale(1.04);
  }
  .player-disc-primary:active {
    transform: scale(0.97);
  }

  /* Secondary floating control (skip ±, prev/next episode). A
     barely-there glass disc that gains opacity on hover so the
     frame stays clear during playback.                          */
  .player-disc-secondary {
    background: rgb(255 255 255 / 0.06);
    color: rgb(255 255 255 / 0.92);
    border: 1px solid rgb(255 255 255 / 0.1);
    backdrop-filter: blur(14px) saturate(1.1);
    -webkit-backdrop-filter: blur(14px) saturate(1.1);
    box-shadow:
      0 10px 30px -14px rgb(0 0 0 / 0.6),
      inset 0 1px 0 rgb(255 255 255 / 0.08);
    transition:
      background var(--duration-fast) var(--ease-default),
      transform var(--duration-fast) var(--ease-spring),
      border-color var(--duration-fast) var(--ease-default);
  }
  .player-disc-secondary:hover {
    background: rgb(255 255 255 / 0.14);
    border-color: rgb(255 255 255 / 0.22);
    transform: scale(1.06);
  }
  .player-disc-secondary:active {
    transform: scale(0.95);
  }

  /* Breathing halo behind the primary disc when paused. */
  .player-disc-primary[data-paused="true"] {
    animation: player-breathe 2.6s ease-in-out infinite;
  }

  /* Bottom HUD rail — title/time on the left, utilities on the right. */
  .player-hud {
    background: linear-gradient(
      to top,
      rgb(0 0 0 / 0.82) 0%,
      rgb(0 0 0 / 0.56) 55%,
      rgb(0 0 0 / 0) 100%
    );
  }

  /* Full-frame vignette for control legibility without washing out
     the picture. Two stacked gradients: a soft top scrim for the
     exit/title chrome and a stronger bottom scrim for the HUD.    */
  .player-scrim {
    background:
      linear-gradient(to bottom, rgb(0 0 0 / 0.55) 0%, rgb(0 0 0 / 0.18) 14%, rgb(0 0 0 / 0) 28%),
      radial-gradient(ellipse 70% 50% at 50% 50%, rgb(0 0 0 / 0.18), transparent 70%);
  }

  /* Floating cluster entrance animation — fades in with a gentle rise
     when the controls reveal themselves.                             */
  .player-rise {
    animation: player-rise var(--duration-normal) var(--ease-gentle);
  }

  /* Subtle utility-icon button used in the bottom HUD rail. Relies on
     opacity to recede during playback; a thin active underline signals
     which secondary control is currently on.                          */
  .player-utility-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    color: rgb(255 255 255 / 0.78);
    background: transparent;
    border: none;
    cursor: pointer;
    transition:
      color var(--duration-fast) var(--ease-default),
      background-color var(--duration-fast) var(--ease-default);
  }
  .player-utility-btn:hover {
    color: #fff;
    background: rgb(255 255 255 / 0.08);
  }
  .player-utility-btn:focus-visible {
    outline: 2px solid rgb(255 255 255 / 0.7);
    outline-offset: 2px;
  }
  .player-utility-btn[data-active="true"] {
    color: #fff;
  }
  .player-utility-btn[data-active="true"]::after {
    content: "";
    position: absolute;
    bottom: 0.22rem;
    left: 50%;
    width: 0.28rem;
    height: 0.28rem;
    border-radius: 9999px;
    background: #e8b86e; /* warm projector-lamp amber */
    transform: translateX(-50%);
    box-shadow: 0 0 8px rgb(232 184 110 / 0.7);
  }

  /* Vertical divider between title cluster and utility rail. */
  .player-hud-divider {
    width: 1px;
    align-self: stretch;
    background: linear-gradient(
      to bottom,
      transparent,
      rgb(255 255 255 / 0.14) 20%,
      rgb(255 255 255 / 0.14) 80%,
      transparent
    );
    margin-inline: 0.25rem;
  }

  /* Range-input thumb for the subtitle appearance panel's opacity slider.
     Mirrors the seek bar's hover thumb so form controls feel native to the
     player chrome rather than browser-default.                              */
  .player-subtitle-opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 9999px;
    background: #ffffff;
    border: none;
    box-shadow:
      0 2px 8px rgb(0 0 0 / 0.5),
      inset 0 0 0 1px rgb(0 0 0 / 0.12);
    cursor: pointer;
  }
  .player-subtitle-opacity-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 9999px;
    background: #ffffff;
    border: none;
    box-shadow:
      0 2px 8px rgb(0 0 0 / 0.5),
      inset 0 0 0 1px rgb(0 0 0 / 0.12);
    cursor: pointer;
  }

  /* ── Media Card ──────────────────────────────────────────── */
  /* Hover effect for poster/backdrop cards.
     Scale is applied to the image inside the overflow-hidden
     .media-card-image container so it stays visually contained
     and doesn't overlap adjacent carousels.
     Usage: <div class="media-card">
              <div class="media-card-image"><img … /></div>
              <div>Title</div>
            </div>                                              */
  .media-card {
    transition:
      transform var(--duration-normal) var(--ease-gentle),
      filter var(--duration-fast) var(--ease-default);
  }
  .media-card:hover {
    filter: brightness(1.1);
    transform: translateY(-4px);
  }

  /* Card image container with consistent rounded corners */
  .media-card-image {
    overflow: hidden;
    border-radius: var(--radius-xl);
    background-color: var(--surface);
    border: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.05),
      0 24px 40px -26px rgb(0 0 0 / 0.8);
  }
  .media-card-image img {
    transition:
      transform var(--duration-normal) var(--ease-gentle),
      opacity var(--duration-normal) var(--ease-default);
  }
  .media-card:hover .media-card-image img {
    transform: scale(1.06);
  }

  /* ── Episode Row ─────────────────────────────────────────── */
  /* Horizontal episode list item with hover highlight.
     Usage: <div class="episode-row">
              <img ... />
              <div>E1 Title ...</div>
            </div>                                              */
  .episode-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    transition: background-color var(--duration-fast) var(--ease-default);
    cursor: pointer;
  }
  .episode-row:hover {
    background-color: var(--surface-hover);
  }
  .episode-row:last-child {
    border-bottom: none;
  }

  /* ── Metadata Badge ──────────────────────────────────────── */
  /* Small inline badge for metadata (year, rating, duration).
     Usage: <span class="metadata-badge">PG-13</span>          */
  .metadata-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background-color: color-mix(in srgb, var(--foreground) 8%, transparent);
    color: color-mix(in srgb, var(--foreground) 72%, var(--muted-foreground));
    border: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  /* ── Pill Button ─────────────────────────────────────────── */
  /* Fully-rounded button shape for primary actions.
     Usage: <button class="pill">▶ Play</button>                */
  .pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.78rem 1.4rem;
    border-radius: 9999px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    transition: all var(--duration-fast) var(--ease-default);
  }
  .pill-primary {
    background-color: var(--primary);
    color: var(--primary-foreground);
    box-shadow: 0 16px 36px -20px color-mix(in srgb, var(--primary) 60%, transparent);
  }
  .pill-primary:hover {
    filter: brightness(0.96);
    transform: translateY(-1px);
  }
  .pill-secondary {
    background-color: var(--secondary);
    color: var(--secondary-foreground);
  }
  .pill-secondary:hover {
    background-color: var(--surface-hover);
  }
  .pill-glass {
    background: color-mix(in srgb, var(--foreground) 12%, transparent);
    color: var(--foreground);
    border: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .pill-glass:hover {
    background: color-mix(in srgb, var(--foreground) 18%, transparent);
  }

  /* ── Action Circle ───────────────────────────────────────── */
  /* Circular icon button for secondary actions (shuffle, download, etc).
     Usage: <button class="action-circle"><Icon /></button>     */
  .action-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background-color: color-mix(in srgb, var(--foreground) 10%, transparent);
    color: var(--foreground);
    transition: background-color var(--duration-fast) var(--ease-default);
    cursor: pointer;
    border: none;
  }
  .action-circle:hover {
    background-color: color-mix(in srgb, var(--foreground) 18%, transparent);
  }

  /* ── Tab Bar ─────────────────────────────────────────────── */
  /* Pill-style tab navigation (Recommended | Browse | etc).
     Usage: <div class="tab-bar">
              <button class="tab-item tab-active">Browse</button>
              <button class="tab-item">Collections</button>
            </div>                                              */
  .tab-bar {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem;
    border-radius: var(--radius-lg);
  }
  .tab-item {
    padding: 0.375rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    transition: all var(--duration-fast) var(--ease-default);
    cursor: pointer;
    background: transparent;
    border: none;
  }
  .tab-item:hover {
    color: var(--foreground);
    background-color: var(--surface-hover);
  }
  .tab-active {
    color: var(--foreground);
    background-color: var(--surface);
    border: 1px solid var(--border);
  }

  /* ── Carousel Dots ───────────────────────────────────────── */
  /* Indicator dots for hero carousels.
     Usage: <div class="carousel-dots">
              <button class="dot dot-active" />
              <button class="dot" />
            </div>                                              */
  .carousel-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
  }
  .dot {
    width: 0.42rem;
    height: 0.42rem;
    border-radius: 9999px;
    background-color: color-mix(in srgb, var(--foreground) 26%, transparent);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-default);
  }
  .dot-active {
    width: 1.5rem;
    background-color: var(--primary);
  }

  /* ── Library Marquee Header ───────────────────────────────── */
  /* Shared sticky header for the Library page. Sits transparently
     over the hero on the Recommended tab, and switches to a glass
     surface on scroll or when no hero backdrop is behind it.        */
  .library-marquee-header {
    /* Mobile: non-sticky so the tabs scroll with the hero instead of hovering
       over it — stacking a sticky tab bar under the sticky top nav eats too
       much vertical space on narrow viewports. At lg+ the mobile top nav is
       hidden, so we promote this header to sticky at top:0 there. */
    position: relative;
    z-index: 20;
    display: flex;
    align-items: center;
    /* On mobile the eyebrow is hidden, so the tab pill bar is the only child —
       center it. sm+ overrides back to space-between once the eyebrow shows. */
    justify-content: center;
    gap: 1.5rem;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid transparent;
    background: color-mix(in srgb, var(--background) 82%, transparent);
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
    border-bottom-color: color-mix(in srgb, var(--border) 55%, transparent);
    transition:
      background var(--duration-normal) var(--ease-default),
      backdrop-filter var(--duration-normal) var(--ease-default),
      border-color var(--duration-normal) var(--ease-default);
  }
  @media (min-width: 1024px) {
    .library-marquee-header {
      position: sticky;
      top: 0;
      z-index: 30;
    }
  }
  .library-marquee-header.is-overlay {
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom-color: transparent;
  }
  .library-marquee-header.is-overlay[data-scrolled="true"] {
    background: color-mix(in srgb, var(--background) 72%, transparent);
    backdrop-filter: blur(18px) saturate(1.15);
    -webkit-backdrop-filter: blur(18px) saturate(1.15);
    border-bottom-color: color-mix(in srgb, var(--border) 50%, transparent);
  }
  @media (min-width: 640px) {
    .library-marquee-header {
      justify-content: space-between;
      padding: 1rem 1.5rem;
    }
  }
  @media (min-width: 1024px) {
    .library-marquee-header {
      padding: 1.1rem 2.5rem;
    }
  }
  @media (min-width: 1280px) {
    .library-marquee-header {
      padding: 1.1rem 3rem;
    }
  }

  /* Small-caps tracked eyebrow label used above hero content
     and in the marquee header as the page identifier.              */
  .hero-eyebrow {
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--foreground) 62%, transparent);
    white-space: nowrap;
  }
  .hero-eyebrow .hero-eyebrow-divider {
    display: inline-block;
    margin: 0 0.55em;
    opacity: 0.45;
  }
  .hero-eyebrow .hero-eyebrow-strong {
    color: color-mix(in srgb, var(--foreground) 92%, transparent);
  }
  .is-overlay .hero-eyebrow {
    color: color-mix(in srgb, #fff 70%, transparent);
    text-shadow: 0 2px 12px rgb(0 0 0 / 0.5);
  }
  .is-overlay .hero-eyebrow .hero-eyebrow-strong {
    color: #fff;
  }

  /* Middot-separated metadata track for hero content. Replaces
     chip-style badges with editorial cover-copy feel.              */
  .hero-meta-track {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0 0.1rem;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: color-mix(in srgb, var(--foreground) 78%, transparent);
  }
  .hero-meta-track > span {
    display: inline-block;
  }
  .hero-meta-track > span + span::before {
    content: "·";
    display: inline-block;
    margin: 0 0.6rem;
    opacity: 0.55;
    color: color-mix(in srgb, var(--foreground) 55%, transparent);
  }

  /* Editorial slide indicator (counter + rail).                   */
  .hero-slide-counter {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: color-mix(in srgb, #fff 68%, transparent);
    text-shadow: 0 2px 10px rgb(0 0 0 / 0.45);
  }
  .hero-slide-counter .num {
    color: #fff;
  }
  .hero-slide-counter .sep {
    width: 2.5rem;
    height: 1px;
    background: color-mix(in srgb, #fff 35%, transparent);
  }
  .hero-progress-rail {
    position: relative;
    width: 9rem;
    height: 2px;
    background: color-mix(in srgb, #fff 18%, transparent);
    overflow: hidden;
    border-radius: 9999px;
  }
  .hero-progress-rail > span {
    position: absolute;
    inset: 0;
    background: color-mix(in srgb, #fff 88%, transparent);
    transform-origin: left center;
    transform: scaleX(0);
    animation: hero-progress 8s linear forwards;
  }
  .hero-progress-rail[data-paused="true"] > span {
    animation-play-state: paused;
  }
  @keyframes hero-progress {
    from {
      transform: scaleX(0);
    }
    to {
      transform: scaleX(1);
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .hero-progress-rail > span {
      animation: none;
      transform: scaleX(1);
    }
  }

  /* Pill-style tab bar used inside the marquee header.            */
  .marquee-tab-bar {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    padding: 0.25rem;
    border-radius: 9999px;
    background: color-mix(in srgb, #fff 8%, transparent);
    border: 1px solid color-mix(in srgb, #fff 10%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .library-marquee-header:not(.is-overlay) .marquee-tab-bar {
    background: color-mix(in srgb, var(--foreground) 6%, transparent);
    border-color: color-mix(in srgb, var(--border) 60%, transparent);
  }
  .marquee-tab-trigger {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: color-mix(in srgb, var(--foreground) 62%, transparent);
    background: transparent;
    border: none;
    cursor: pointer;
    white-space: nowrap;
    transition: color var(--duration-fast) var(--ease-default);
  }
  .library-marquee-header.is-overlay .marquee-tab-trigger {
    color: color-mix(in srgb, #fff 68%, transparent);
  }
  .marquee-tab-trigger:hover {
    color: var(--foreground);
  }
  .library-marquee-header.is-overlay .marquee-tab-trigger:hover {
    color: #fff;
  }
  .marquee-tab-trigger[data-state="active"] {
    color: var(--foreground);
    background: color-mix(in srgb, var(--foreground) 12%, transparent);
  }
  .library-marquee-header.is-overlay .marquee-tab-trigger[data-state="active"] {
    color: #0a0a0b;
    background: color-mix(in srgb, #fff 92%, transparent);
  }
  .marquee-tab-trigger:focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
  }

  .panel-border {
    border: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.04),
      0 18px 45px -30px rgb(0 0 0 / 0.55);
  }

  .page-shell {
    width: 100%;
    max-width: 1400px;
    margin-inline: auto;
    padding-inline: 1rem;
  }

  .page-shell-wide {
    width: 100%;
    max-width: 1520px;
    margin-inline: auto;
    padding-inline: 1rem;
  }

  @media (min-width: 640px) {
    .page-shell,
    .page-shell-wide {
      padding-inline: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .page-shell,
    .page-shell-wide {
      padding-inline: 2.5rem;
    }
  }

  @media (min-width: 1280px) {
    .page-shell-wide {
      padding-inline: 3rem;
    }
  }

  .page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
  }

  .page-title {
    font-size: clamp(2rem, 4vw, 3.75rem);
    line-height: 0.95;
    font-weight: 800;
    letter-spacing: -0.05em;
  }

  .page-subtitle {
    max-width: 60ch;
    color: color-mix(in srgb, var(--foreground) 68%, var(--muted-foreground));
    line-height: 1.7;
  }

  .surface-panel {
    background: color-mix(in srgb, var(--surface) 90%, transparent);
    border: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
    border-radius: calc(var(--radius-2xl) + 0.35rem);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.04),
      0 24px 50px -34px rgb(0 0 0 / 0.65);
  }

  .surface-panel-subtle {
    background: color-mix(in srgb, var(--surface) 72%, transparent);
    border: 1px solid color-mix(in srgb, var(--border) 62%, transparent);
    border-radius: calc(var(--radius-xl) + 0.25rem);
    box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.04);
  }

  .caption-empty-state span {
    display: block;
    height: 0.35rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--foreground) 18%, transparent);
  }

  .caption-empty-state span:nth-child(1) {
    width: 72%;
    margin-inline: auto;
  }

  .caption-empty-state span:nth-child(2) {
    width: 54%;
    margin-inline: auto;
  }

  .caption-empty-state span:nth-child(3) {
    width: 38%;
    margin-inline: auto;
  }

  /* ── Scan Queue Accent ──────────────────────────────────── */
  /* Animated gradient sweep across the top of the scan queue
     to signal live activity. Only visible when scans are active. */
  .scan-queue-accent {
    background: linear-gradient(
      90deg,
      transparent 0%,
      color-mix(in srgb, var(--primary) 50%, transparent) 45%,
      var(--primary) 50%,
      color-mix(in srgb, var(--primary) 50%, transparent) 55%,
      transparent 100%
    );
    background-size: 200% 100%;
    animation: scan-accent-sweep 4s ease-in-out infinite;
    opacity: 0.6;
  }
  @keyframes scan-accent-sweep {
    0% {
      background-position: 200% 0;
    }
    100% {
      background-position: -200% 0;
    }
  }

  .auth-shell {
    min-height: 100dvh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
  }

  .auth-shell::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(
        circle at 18% 18%,
        color-mix(in srgb, var(--primary) 18%, transparent),
        transparent 28%
      ),
      radial-gradient(
        circle at 82% 12%,
        color-mix(in srgb, var(--ambient) 15%, transparent),
        transparent 26%
      ),
      linear-gradient(
        135deg,
        color-mix(in srgb, var(--background) 96%, transparent),
        var(--background)
      );
    pointer-events: none;
  }

  .auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 28rem;
    border-radius: 2rem;
    padding: 1.75rem;
  }

  .admin-shell {
    width: 100%;
    max-width: 1560px;
    margin-inline: auto;
  }

  /* ── Section Header ──────────────────────────────────────── */
  /* Consistent section heading with optional icon.
     Usage: <div class="section-header">
              <PlayCircle /> Continue Watching
            </div>                                              */
  .section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--foreground);
    padding-bottom: 0.75rem;
  }

  /* ── Live Badge ──────────────────────────────────────────── */
  .live-badge {
    margin-left: auto;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 700;
    background: rgba(255, 60, 60, 0.12);
    color: #f87171;
    border: 1px solid rgba(255, 60, 60, 0.2);
    animation: pulse-opacity 2s ease-in-out infinite;
  }

  /* ── Progress Bar ────────────────────────────────────────── */
  /* Thin progress indicator for watch progress on cards/heroes.
     Usage: <div class="progress-bar">
              <div class="progress-fill" style="width: 65%" />
            </div>                                              */
  .progress-bar {
    width: 100%;
    height: 3px;
    background-color: color-mix(in srgb, var(--foreground) 15%, transparent);
    border-radius: 9999px;
    overflow: hidden;
  }
  .progress-fill {
    height: 100%;
    background-color: var(--primary);
    border-radius: 9999px;
    transition: width var(--duration-normal) var(--ease-default);
  }

  /* ── Watched Badge ───────────────────────────────────────── */
  /* Checkmark badge overlay on fully-watched media cards.
     Position: absolute top-right of card.
     Usage: <div class="relative">
              <img ... />
              <div class="watched-badge"><Check /></div>
            </div>                                              */
  .watched-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 9999px;
    background-color: var(--primary);
    color: var(--primary-foreground);
  }

  /* ── Play Overlay ────────────────────────────────────────── */
  /* Semi-transparent play button centered on thumbnails.
     Usage: <div class="relative group">
              <img ... />
              <div class="play-overlay"><Play /></div>
            </div>                                              */
  .play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--background) 40%, transparent);
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-default);
  }
  .group:hover .play-overlay,
  .play-overlay:hover {
    opacity: 1;
  }

  /* ── Impersonation Banner ────────────────────────────────── */
  /* Override strip shown while an admin is viewing the app as
     another user. Warm-gold accents on a glass-dark surface —
     unmistakable without being alarming. Pinned to the viewport
     top via Tailwind's `sticky top-0 z-50` utilities on the
     outer element.                                              */
  /* Global sidebar offset used by out-of-tree chrome that needs to
     align with the current sidebar width. Layout sets
     `data-sidebar-collapsed` on the root element; this media-query
     block resolves the correct px value per breakpoint/state.     */
  :root {
    --app-sidebar-offset: 0px;
  }
  @media (min-width: 1024px) {
    :root {
      --app-sidebar-offset: 260px;
    }
    :root[data-sidebar-collapsed="true"] {
      --app-sidebar-offset: 64px;
    }
  }

  .impersonation-banner {
    --impersonation-accent: oklch(0.82 0.14 78);
    --impersonation-accent-glow: oklch(0.82 0.14 78 / 0.55);
    --impersonation-accent-soft: oklch(0.82 0.14 78 / 0.12);
    --impersonation-accent-line: oklch(0.82 0.14 78 / 0.32);

    margin-left: var(--app-sidebar-offset);
    transition: margin-left var(--duration-normal) var(--ease-default);
    position: sticky;
    background: linear-gradient(
      180deg,
      color-mix(in srgb, var(--background) 94%, transparent),
      color-mix(in srgb, var(--background) 88%, transparent)
    );
    backdrop-filter: blur(20px) saturate(1.3);
    -webkit-backdrop-filter: blur(20px) saturate(1.3);
    border-bottom: 1px solid color-mix(in srgb, var(--impersonation-accent) 16%, var(--border));
    box-shadow:
      inset 0 1px 0 color-mix(in srgb, var(--impersonation-accent) 22%, transparent),
      0 10px 32px -20px rgb(0 0 0 / 0.65);
  }

  /* Luminous top accent line — fades in from both edges so the
     banner reads as a deliberate strip rather than a hard bar. */
  .impersonation-banner::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(
      90deg,
      transparent,
      var(--impersonation-accent-line) 18%,
      var(--impersonation-accent-line) 82%,
      transparent
    );
    pointer-events: none;
  }

  /* Soft warm wash on the left edge so the eye lands on the
     status dot first. Fades out before the button column. */
  .impersonation-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      90deg,
      color-mix(in srgb, var(--impersonation-accent) 10%, transparent),
      transparent 38%
    );
    pointer-events: none;
  }

  .impersonation-banner-inner {
    position: relative;
    z-index: 1;
  }

  .impersonation-dot {
    background: var(--impersonation-accent);
    box-shadow: 0 0 10px 1px var(--impersonation-accent-glow);
  }

  .impersonation-pulse {
    background: var(--impersonation-accent);
    opacity: 0.55;
  }

  .impersonation-label {
    letter-spacing: 0.22em;
    color: color-mix(in srgb, var(--impersonation-accent) 85%, var(--foreground));
  }

  .impersonation-chip {
    background: var(--impersonation-accent-soft);
    color: color-mix(in srgb, var(--impersonation-accent) 85%, var(--foreground));
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--impersonation-accent) 32%, transparent);
  }

  .impersonation-end-btn {
    color: var(--foreground);
    background: color-mix(in srgb, var(--foreground) 5%, transparent);
    border: 1px solid color-mix(in srgb, var(--impersonation-accent) 24%, var(--border));
  }

  .impersonation-end-btn:hover {
    background: color-mix(in srgb, var(--impersonation-accent) 14%, transparent);
    border-color: color-mix(in srgb, var(--impersonation-accent) 55%, var(--border));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--impersonation-accent) 8%, transparent);
  }

  .impersonation-end-btn:focus-visible {
    border-color: var(--impersonation-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--impersonation-accent) 28%, transparent);
  }
}