veza/apps/web/src/index.css

@import 'tailwindcss';
@import 'tw-animate-css';

@custom-variant dark (&:is(.dark *));

/* ╔══════════════════════════════════════════════════════════════════════════╗
   ║  KŌDŌ DESIGN SYSTEM v3.0 — "The Path of Sound"                           ║
   ║  VEZA × TALAS — Manga × Graffiti × Nature × Gaming × Linux               ║
   ╚══════════════════════════════════════════════════════════════════════════╝ */

:root {
  /* ═══════════════════════════════════════════════════════════════════════════
     CORE PALETTE — Light Mode
     ═══════════════════════════════════════════════════════════════════════════ */

  --background: oklch(0.985 0 0);
  --foreground: oklch(0.145 0.005 265);

  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0.005 265);

  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0.005 265);

  /* Primary: Neon Cyan — Tech, Flow, Future */
  --primary: oklch(0.75 0.18 195);
  --primary-foreground: oklch(0.13 0.02 265);

  /* Secondary: Hot Magenta — Street, Passion, Edge */
  --secondary: oklch(0.65 0.25 330);
  --secondary-foreground: oklch(0.98 0 0);

  --muted: oklch(0.96 0.005 265);
  --muted-foreground: oklch(0.42 0.015 265);

  --accent: oklch(0.95 0.01 265);
  --accent-foreground: oklch(0.20 0.01 265);

  /* Semantic Colors */
  --destructive: oklch(0.60 0.22 25);
  --destructive-foreground: oklch(0.98 0 0);

  --success: oklch(0.72 0.19 145);
  --success-foreground: oklch(0.13 0.02 145);

  --warning: oklch(0.80 0.16 75);
  --warning-foreground: oklch(0.20 0.05 75);

  --info: oklch(0.70 0.15 230);
  --info-foreground: oklch(0.13 0.02 230);

  --border: oklch(0.90 0.005 265);
  --input: oklch(0.90 0.005 265);
  --ring: oklch(0.75 0.18 195);

  /* Charts */
  --chart-1: oklch(0.75 0.18 195);
  --chart-2: oklch(0.65 0.25 330);
  --chart-3: oklch(0.72 0.19 145);
  --chart-4: oklch(0.70 0.20 290);
  --chart-5: oklch(0.80 0.16 75);

  --radius: 0.5rem;

  /* Sidebar */
  --sidebar: oklch(0.98 0.003 265);
  --sidebar-foreground: oklch(0.145 0.005 265);
  --sidebar-primary: oklch(0.75 0.18 195);
  --sidebar-primary-foreground: oklch(0.13 0.02 265);
  --sidebar-accent: oklch(0.94 0.01 265);
  --sidebar-accent-foreground: oklch(0.20 0.01 265);
  --sidebar-border: oklch(0.90 0.005 265);
  --sidebar-ring: oklch(0.75 0.18 195);

  /* Sidebar active item indicator (left border) — use instead of arbitrary shadow */
  --sidebar-active-indicator: inset 2px 0 0 0 var(--sidebar-primary);

  /* Sidebar layout — Phase 3: tokens (Discord 240px expanded, 72px collapsed) */
  --sidebar-width-expanded: 15rem;
  /* 240px — aligné Discord channel list */
  --sidebar-width-collapsed: 5rem;
  /* 80px — collapsed icons-only */
  --sidebar-offset-left: 1.5rem;
  --sidebar-offset-top: 5rem;
  --sidebar-offset-bottom: 1.5rem;
  /* margin between bottom of sidebar and viewport bottom */
  --sidebar-z-index: 95;
  --sidebar-overlay-z-index: 90;

  /* Dashboard stat cards — Phase 3: ombre réduite pour hiérarchie */
  --stat-icon-shadow: 0 0 6px rgb(255 255 255 / 0.08);
  /* Sparkline / path glow (currentColor) */
  --stat-sparkline-glow: 0 0 8px currentColor;

  /* Layout primitives — standard widths/heights for app shell and pages */
  --layout-content-max-width: 100rem;
  /* 1600px — main content max width */
  --layout-main-min-height: calc(100vh - 4rem);
  /* below 64px header */
  --layout-page-min-height: 37.5rem;
  /* 600px — full-page min height */
  --layout-page-min-height-sm: 25rem;
  /* 400px — compact page / empty state */
  --layout-story-decorator-min-height: 12rem;
  /* 192px — story wrapper (min-h-48) */
  --layout-gap: 1rem;
  /* 16px — default gap between sections (align Tailwind gap-4) */
  --layout-gap-sm: 0.75rem;
  /* 12px — tight gap (gap-3) */
  --layout-gap-lg: 1.5rem;
  /* 24px — loose gap (gap-6) */
  --layout-drawer-max-height: 60vh;
  /* queue, side panels */
  --layout-panel-max-height: 70vh;
  /* floating panels (e.g. audio player popover) */
  --layout-list-max-height: 25rem;
  /* 400px — scroll lists (align min-h-layout-page-sm) */
  --layout-modal-max-height: 85vh;
  --layout-modal-max-height-sm: 80vh;
  --layout-modal-max-height-xs: 70vh;
  --layout-modal-max-height-lg: 90vh;
  --layout-lyrics-height: 60vh;
  --layout-lyrics-height-sm: 50vh;

  /* App shell — header, main offsets and margins (sidebar-driven) */
  --header-height: 4rem;
  /* fixed header bar height (was h-16) */
  --main-offset-top: 5rem;
  /* main padding-top to clear fixed header (was pt-20) */
  --main-offset-bottom: 9rem;
  /* main padding-bottom reserve for floating player (144px — avoid content under player) */
  --main-margin-left-expanded: 18rem;
  /* main margin when sidebar open: sidebar 15rem + 3rem gap */
  --main-margin-left-collapsed: 7rem;
  /* main margin when sidebar collapsed: 5rem + 2rem gap */
  --header-left-expanded: 18rem;
  /* header bar left edge when sidebar open */
  --header-left-collapsed: 5rem;
  /* header bar left edge when sidebar collapsed */

  /* ═══════════════════════════════════════════════════════════════════════════
     KŌDŌ EXTENDED PALETTE — "Spectre Urbain"
     ═══════════════════════════════════════════════════════════════════════════ */

  /* Void Scale */
  --void-0: oklch(0.985 0 0);
  --void-50: oklch(0.97 0.003 265);
  --void-100: oklch(0.94 0.005 265);
  --void-200: oklch(0.88 0.008 265);
  --void-300: oklch(0.78 0.01 265);
  --void-400: oklch(0.62 0.015 265);
  --void-500: oklch(0.50 0.02 265);
  --void-600: oklch(0.40 0.025 265);
  --void-700: oklch(0.30 0.02 265);
  --void-800: oklch(0.22 0.015 265);
  --void-900: oklch(0.15 0.01 265);
  --void-950: oklch(0.10 0.005 265);

  /* Neon Cyan Scale */
  --cyan-50: oklch(0.97 0.04 195);
  --cyan-100: oklch(0.93 0.08 195);
  --cyan-200: oklch(0.88 0.12 195);
  --cyan-300: oklch(0.82 0.15 195);
  --cyan-400: oklch(0.78 0.17 195);
  --cyan-500: oklch(0.75 0.18 195);
  --cyan-600: oklch(0.65 0.16 195);
  --cyan-700: oklch(0.55 0.14 195);
  --cyan-800: oklch(0.45 0.12 195);
  --cyan-900: oklch(0.35 0.10 195);

  /* Hot Magenta Scale */
  --magenta-50: oklch(0.97 0.05 330);
  --magenta-100: oklch(0.93 0.10 330);
  --magenta-200: oklch(0.85 0.16 330);
  --magenta-300: oklch(0.78 0.20 330);
  --magenta-400: oklch(0.70 0.23 330);
  --magenta-500: oklch(0.65 0.25 330);
  --magenta-600: oklch(0.55 0.22 330);
  --magenta-700: oklch(0.45 0.18 330);
  --magenta-800: oklch(0.35 0.14 330);
  --magenta-900: oklch(0.28 0.10 330);

  /* Acid Lime Scale */
  --lime-50: oklch(0.97 0.05 145);
  --lime-100: oklch(0.94 0.10 145);
  --lime-200: oklch(0.88 0.14 145);
  --lime-300: oklch(0.82 0.17 145);
  --lime-400: oklch(0.77 0.18 145);
  --lime-500: oklch(0.72 0.19 145);
  --lime-600: oklch(0.62 0.17 145);
  --lime-700: oklch(0.52 0.14 145);
  --lime-800: oklch(0.42 0.11 145);
  --lime-900: oklch(0.32 0.08 145);

  /* Gaming Colors */
  --xp-gold: oklch(0.85 0.16 85);
  --hp-red: oklch(0.60 0.22 25);
  --mp-blue: oklch(0.60 0.18 250);
  --shield-purple: oklch(0.55 0.22 300);

  /* Nature Tones */
  --moss: oklch(0.45 0.10 145);
  --moss-light: oklch(0.55 0.12 145);
  --bark: oklch(0.35 0.05 55);
  --leaf: oklch(0.62 0.15 140);

  /* Manga Spectrum */
  --sakura: oklch(0.85 0.10 350);
  --yurei: oklch(0.60 0.15 290);
  --shonen: oklch(0.60 0.20 30);

  /* Terminal */
  --terminal-green: oklch(0.75 0.20 145);
  --terminal-amber: oklch(0.80 0.15 80);
  --matrix: oklch(0.15 0.05 145);

  /* Gradients */
  --gradient-neon: linear-gradient(135deg, var(--cyan-500), var(--magenta-500), var(--lime-500));
  --gradient-cyber: linear-gradient(135deg, var(--cyan-400), var(--magenta-500));
  --gradient-sunset: linear-gradient(135deg, oklch(0.65 0.20 35), var(--magenta-500));
  --gradient-forest: linear-gradient(135deg, var(--moss), var(--leaf), var(--lime-500));
  --gradient-manga: linear-gradient(135deg, var(--sakura), var(--yurei));
  --gradient-terminal: linear-gradient(180deg, var(--matrix), var(--void-950));
  --gradient-gaming: linear-gradient(135deg, var(--shonen), var(--xp-gold));

  /* Glows */
  --glow-cyan: 0 0 20px oklch(0.75 0.18 195 / 0.4);
  --glow-magenta: 0 0 20px oklch(0.65 0.25 330 / 0.4);
  --glow-lime: 0 0 20px oklch(0.72 0.19 145 / 0.4);
  --glow-gold: 0 0 20px oklch(0.85 0.16 85 / 0.4);
  --glow-terminal: 0 0 10px oklch(0.75 0.20 145 / 0.3);

  /* Glass */
  --glass-bg: oklch(1 0 0 / 0.8);
  --glass-border: oklch(0 0 0 / 0.05);
  --glass-blur: 16px;

  /* Animation Easings */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);

  --duration-instant: 100ms;
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  /* Immersive UI: micro-interactions (hover, focus) */
  --duration-immersive: 200ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;

  /* Clip Paths — Manga Style */
  --clip-manga: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  --clip-manga-lg: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  --clip-hex: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
  --clip-badge: polygon(0 10%, 10% 0, 90% 0, 100% 10%, 100% 90%, 90% 100%, 10% 100%, 0 90%);
  --clip-slant: polygon(0 0, 100% 0, 100% calc(100% - 8px), 0 100%);
}

/* ═══════════════════════════════════════════════════════════════════════════
   DARK MODE — The Void
   ═══════════════════════════════════════════════════════════════════════════ */
.dark {
  /* Spotify/Discord Premium: Deep, rich dark tones */
  /* Main Background: Very deep void (approx #0d0d12) */
  --background: oklch(0.10 0.005 265);
  --foreground: oklch(0.98 0 0);

  /* Cards/Surfaces: Slight elevation (approx #16161e) */
  --card: oklch(0.13 0.01 265);
  --card-foreground: oklch(0.98 0 0);

  --popover: oklch(0.13 0.01 265);
  --popover-foreground: oklch(0.98 0 0);

  /* Primary: Electric Cyan (preserved but refined) */
  --primary: oklch(0.72 0.19 195);
  --primary-foreground: oklch(0.08 0.02 265);

  --secondary: oklch(0.25 0.04 265);
  /* Darker secondary surface */
  --secondary-foreground: oklch(0.90 0.01 265);

  --muted: oklch(0.18 0.01 265);
  --muted-foreground: oklch(0.70 0.015 265);

  /* Accent: Hover states (approx #23232f) */
  --accent: oklch(0.20 0.02 265);
  --accent-foreground: oklch(0.98 0 0);

  --destructive: oklch(0.62 0.22 25);
  --destructive-foreground: oklch(0.98 0 0);

  /* Borders: Very subtle, refined transparency */
  --border: oklch(1 0 0 / 0.08);
  --input: oklch(1 0 0 / 0.08);
  --ring: oklch(0.72 0.19 195 / 0.5);

  /* Sidebar: Darkest surface (approx #08080c) */
  --sidebar: oklch(0.08 0.005 265);
  --sidebar-foreground: oklch(0.70 0.015 265);
  /* Muted by default — synced with --muted-foreground for consistency */
  --sidebar-primary: oklch(0.72 0.19 195);
  --sidebar-primary-foreground: oklch(0.98 0 0);
  --sidebar-accent: oklch(1 0 0 / 0.04);
  --sidebar-accent-foreground: oklch(0.98 0 0);
  --sidebar-border: oklch(1 0 0 / 0.04);
  --sidebar-ring: oklch(0.72 0.19 195);

  /* Charts */
  --chart-1: oklch(0.75 0.18 195);
  --chart-2: oklch(0.65 0.25 330);
  --chart-3: oklch(0.72 0.19 145);
  --chart-4: oklch(0.70 0.20 290);
  --chart-5: oklch(0.80 0.16 75);

  /* Update Void Scale for lighter theme (shifted up) */
  --void-0: oklch(0.15 0.02 265);
  --void-50: oklch(0.18 0.02 265);
  --void-100: oklch(0.22 0.02 265);
  /* ...rest can stay relative or be unused */
  --void-950: oklch(0.98 0 0);

  /* Glows - Adjusted for lighter contrast */
  --glow-cyan: 0 0 25px oklch(0.75 0.18 195 / 0.25);
  --glow-magenta: 0 0 25px oklch(0.65 0.25 330 / 0.25);
  --glow-lime: 0 0 25px oklch(0.72 0.19 145 / 0.25);
  --glow-gold: 0 0 25px oklch(0.85 0.16 85 / 0.25);
  --glow-terminal: 0 0 15px oklch(0.78 0.20 145 / 0.2);

  /* Glass - Lighter background opacity */
  --glass-bg: oklch(0.18 0.02 265 / 0.6);
  --glass-border: oklch(1 0 0 / 0.1);
  --glass-blur: 24px;
}

@theme inline {
  /* Typography — KŌDŌ Font Stack (audit P3: explicit fallback if Rajdhani glyphs fail) */
  --font-sans: 'Rajdhani', 'Inter', 'Noto Sans JP', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  --font-display: 'Orbitron', 'Bebas Neue', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;

  /* Core Design Tokens */
  --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-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);
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);

  /* Extended Semantic Colors */
  --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);

  /* Neon Colors */
  --color-cyan: var(--cyan-500);
  --color-magenta: var(--magenta-500);
  --color-lime: var(--lime-500);
  --color-gold: var(--xp-gold);

  /* Chart Colors */
  --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);

  /* Radius — Squircle: xl for surfaces, full for interactive */
  --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-full: 9999px;

  /* 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-ring: var(--sidebar-ring);
}

/* ═══════════════════════════════════════════════════════════════════════════
   BASE STYLES
   ═══════════════════════════════════════════════════════════════════════════ */
@layer base {
  * {
    @apply border-border outline-ring/50;
  }

  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    @apply bg-background text-foreground;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  }

  /* Noise texture overlay */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
      url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.015;
    pointer-events: none;
    z-index: 9998;
  }

  ::selection {
    background: var(--primary);
    color: var(--primary-foreground);
  }

  /* Custom Scrollbar — Spotify/Discord-like: thin, subtle, low visual weight */
  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }

  ::-webkit-scrollbar-track {
    background: transparent;
  }

  ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
  }

  @supports (scrollbar-width: thin) {
    * {
      scrollbar-width: thin;
      scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
    }
  }

  /* Typography */
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    @apply font-sans font-semibold tracking-tight text-foreground;
    text-wrap: balance;
  }

  h1 {
    @apply text-4xl md:text-5xl;
  }

  h2 {
    @apply text-3xl md:text-4xl;
  }

  h3 {
    @apply text-2xl md:text-3xl;
  }

  h4 {
    @apply text-xl md:text-2xl;
  }

  h5 {
    @apply text-lg md:text-xl;
  }

  h6 {
    @apply text-base md:text-lg;
  }

  p {
    @apply text-muted-foreground leading-relaxed;
    text-wrap: pretty;
  }

  a:not([class]) {
    @apply text-primary transition-colors;
  }

  a:not([class]):hover {
    @apply text-primary/80;
  }

  code {
    @apply font-mono text-sm bg-muted px-1.5 py-0.5 rounded;
  }

  pre {
    @apply font-mono text-sm bg-muted p-4 rounded-lg overflow-x-auto;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   KŌDŌ UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════════════════ */
@layer utilities {

  /* Layout primitives — use instead of arbitrary values for app shell and pages */
  .max-w-layout-content {
    max-width: var(--layout-content-max-width);
  }

  .min-h-layout-main {
    min-height: var(--layout-main-min-height);
  }

  .min-h-layout-page {
    min-height: var(--layout-page-min-height);
  }

  .min-h-layout-page-sm {
    min-height: var(--layout-page-min-height-sm);
  }

  .min-h-layout-story {
    min-height: var(--layout-story-decorator-min-height);
  }

  .max-h-layout-drawer {
    max-height: var(--layout-drawer-max-height);
  }

  .max-h-layout-panel {
    max-height: var(--layout-panel-max-height);
  }

  .max-h-layout-list {
    max-height: var(--layout-list-max-height);
  }

  .max-h-layout-modal {
    max-height: var(--layout-modal-max-height);
  }

  .max-h-layout-modal-sm {
    max-height: var(--layout-modal-max-height-sm);
  }

  .max-h-layout-modal-xs {
    max-height: var(--layout-modal-max-height-xs);
  }

  .max-h-layout-modal-lg {
    max-height: var(--layout-modal-max-height-lg);
  }

  .h-layout-lyrics {
    height: var(--layout-lyrics-height);
  }

  .h-layout-lyrics-sm {
    height: var(--layout-lyrics-height-sm);
  }

  /* Sidebar layout — use tokens instead of arbitrary values */
  .w-sidebar-expanded {
    width: var(--sidebar-width-expanded);
  }

  .w-sidebar-collapsed {
    width: var(--sidebar-width-collapsed);
  }

  .left-sidebar {
    left: var(--sidebar-offset-left);
  }

  .top-sidebar {
    top: var(--sidebar-offset-top);
  }

  .bottom-sidebar {
    bottom: var(--sidebar-offset-bottom);
  }

  .z-sidebar {
    z-index: var(--sidebar-z-index);
  }

  .z-sidebar-overlay {
    z-index: var(--sidebar-overlay-z-index);
  }

  /* App shell — utility classes for layout (use with lg: for desktop) */
  .h-header {
    height: var(--header-height);
  }

  .pt-main {
    padding-top: var(--main-offset-top);
  }

  .pb-main {
    padding-bottom: var(--main-offset-bottom);
  }

  .ml-main-expanded {
    margin-left: var(--main-margin-left-expanded);
  }

  .ml-main-collapsed {
    margin-left: var(--main-margin-left-collapsed);
  }

  /* Responsive margin-left for main (Tailwind does not generate lg: for custom classes) */
  @media (min-width: 1024px) {
    .lg\:ml-main-expanded {
      margin-left: var(--main-margin-left-expanded);
    }
    .lg\:ml-main-collapsed {
      margin-left: var(--main-margin-left-collapsed);
    }
    /* Fixed player: do not overlap sidebar (same left as content area) */
    .lg\:left-main-expanded {
      left: var(--main-margin-left-expanded);
    }
    .lg\:left-main-collapsed {
      left: var(--main-margin-left-collapsed);
    }
  }

  .left-header-expanded {
    left: var(--header-left-expanded);
  }

  .left-header-collapsed {
    left: var(--header-left-collapsed);
  }

  .drop-shadow-stat-icon {
    filter: drop-shadow(var(--stat-icon-shadow));
  }

  .drop-shadow-stat-sparkline {
    filter: drop-shadow(var(--stat-sparkline-glow));
  }

  /* Shell transition — sidebar width/opacity (use on aside and inner content) */
  .transition-shell {
    transition: width var(--duration-normal) var(--ease-out),
      opacity var(--duration-normal) var(--ease-out),
      transform var(--duration-normal) var(--ease-out);
  }

  /* Respect prefers-reduced-motion: no decorative motion for sidebar and player */
  @media (prefers-reduced-motion: reduce) {
    .transition-shell {
      transition: none;
    }
    .player-bar-entrance {
      animation: none !important;
    }
  }

  /* Modal/page animations (camelCase class names used in codebase) — tokenized */
  .animate-fadeIn {
    animation: fade-in var(--duration-normal) var(--ease-out);
  }

  .animate-scaleIn {
    animation: scale-in var(--duration-normal) var(--ease-out);
  }

  /* Semantic shadows — card, modal, tooltip (tokens from design-system.css) */
  .shadow-card {
    box-shadow: var(--shadow-card);
  }

  .shadow-card-hover {
    box-shadow: var(--shadow-card-hover);
  }

  .shadow-card-glow-cyan {
    box-shadow: var(--shadow-card-glow-cyan);
  }

  .shadow-card-glow-magenta {
    box-shadow: var(--shadow-card-glow-magenta);
  }

  .shadow-modal {
    box-shadow: var(--shadow-modal);
  }

  .shadow-tooltip {
    box-shadow: var(--shadow-tooltip);
  }

  /* Sidebar active nav item — left border indicator */
  .sidebar-active-indicator {
    box-shadow: var(--sidebar-active-indicator);
  }

  /* Button primary hover glow */
  .shadow-button-primary-glow {
    box-shadow: var(--button-primary-glow);
  }

  .shadow-button-primary-glow-hover {
    box-shadow: var(--button-primary-glow-hover);
  }

  /* Player thumb and bar hover (tokens from design-system.css) */
  .shadow-player-thumb {
    box-shadow: var(--player-thumb-glow);
  }

  .shadow-player-hover {
    box-shadow: var(--player-hover-glow);
  }

  .shadow-queue-item-current {
    box-shadow: var(--queue-item-current-glow);
  }

  .shadow-slider-thumb {
    box-shadow: var(--slider-thumb-glow);
  }

  /* Status / activity dots (dashboard) */
  .shadow-status-dot-cyan {
    box-shadow: var(--status-dot-glow-cyan);
  }
  .shadow-status-dot-lime {
    box-shadow: var(--status-dot-glow-lime);
  }
  .shadow-status-dot-magenta {
    box-shadow: var(--status-dot-glow-magenta);
  }

  .shadow-cover-depth {
    box-shadow: var(--shadow-cover-depth);
  }

  .shadow-gold-glow {
    box-shadow: var(--shadow-gold-glow);
  }

  .shadow-fab-glow {
    box-shadow: var(--shadow-fab-glow);
  }

  .shadow-fab-glow-hover:hover {
    box-shadow: var(--shadow-fab-glow-hover);
  }

  /* Neon Glows */
  .glow-cyan {
    box-shadow: var(--glow-cyan);
  }

  .glow-magenta {
    box-shadow: var(--glow-magenta);
  }

  .glow-lime {
    box-shadow: var(--glow-lime);
  }

  .glow-gold {
    box-shadow: var(--glow-gold);
  }

  .glow-terminal {
    box-shadow: var(--glow-terminal);
  }

  /* Text Gradients */
  .text-gradient-neon {
    @apply bg-clip-text text-transparent;
    background-image: var(--gradient-neon);
  }

  .text-gradient-cyber {
    @apply bg-clip-text text-transparent;
    background-image: var(--gradient-cyber);
  }

  .text-gradient-sunset {
    @apply bg-clip-text text-transparent;
    background-image: var(--gradient-sunset);
  }

  .text-gradient-forest {
    @apply bg-clip-text text-transparent;
    background-image: var(--gradient-forest);
  }

  .text-gradient-manga {
    @apply bg-clip-text text-transparent;
    background-image: var(--gradient-manga);
  }

  /* Glass Effect */
  .glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
  }

  /* Noise Texture */
  .noise {
    position: relative;
  }

  .noise::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.5;
    mix-blend-mode: overlay;
    border-radius: inherit;
  }

  /* Scanlines */
  .scanlines::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(0deg,
        transparent,
        transparent 2px,
        oklch(0 0 0 / 0.03) 2px,
        oklch(0 0 0 / 0.03) 4px);
    pointer-events: none;
    border-radius: inherit;
  }

  /* Manga Clip Paths */
  .clip-manga {
    clip-path: var(--clip-manga);
  }

  .clip-manga-lg {
    clip-path: var(--clip-manga-lg);
  }

  .clip-hex {
    clip-path: var(--clip-hex);
  }

  .clip-badge {
    clip-path: var(--clip-badge);
  }

  .clip-slant {
    clip-path: var(--clip-slant);
  }

  /* Font Utilities */
  .font-display {
    font-family: var(--font-display);
  }

  .font-jp {
    font-family: var(--font-jp);
  }

  /* Animation Utilities */
  .animate-glow-pulse {
    animation: glow-pulse 2s ease-in-out infinite;
  }

  .animate-float {
    animation: float 6s ease-in-out infinite;
  }

  .animate-slide-up {
    animation: slide-up var(--duration-normal) var(--ease-out);
  }

  .animate-fade-in {
    animation: fade-in var(--duration-normal) var(--ease-out);
  }

  .animate-spin-slow {
    animation: spin-slow 10s linear infinite;
  }

  .animate-achievement {
    animation: achievement-slide 0.5s var(--ease-spring);
  }

  .animate-eq {
    animation: eq-bounce 0.5s ease-in-out infinite;
  }

  /* Hover Effects */
  .hover-lift {
    @apply transition-transform duration-[var(--duration-fast)];
  }

  .hover-lift:hover {
    @apply -translate-y-1;
  }

  .hover-glow-cyan {
    @apply transition-shadow duration-[var(--duration-fast)];
  }

  .hover-glow-cyan:hover {
    box-shadow: var(--glow-cyan);
  }

  .hover-glow-magenta {
    @apply transition-shadow duration-[var(--duration-fast)];
  }

  .hover-glow-magenta:hover {
    box-shadow: var(--glow-magenta);
  }

  .hover-glow-lime {
    @apply transition-shadow duration-[var(--duration-fast)];
  }

  .hover-glow-lime:hover {
    box-shadow: var(--glow-lime);
  }

  .hover-glow-gold {
    @apply transition-shadow duration-[var(--duration-fast)];
  }

  .hover-glow-gold:hover {
    box-shadow: var(--glow-gold);
  }

  /* Gaming specific */
  .text-xp {
    color: var(--xp-gold);
  }

  .text-hp {
    color: var(--hp-red);
  }

  .text-mp {
    color: var(--mp-blue);
  }

  .text-terminal {
    color: var(--terminal-green);
    text-shadow: var(--glow-terminal);
  }

  .bg-terminal {
    background: var(--gradient-terminal);
  }

  .bg-gaming {
    background: var(--gradient-gaming);
  }

  .bg-manga {
    background: var(--gradient-manga);
  }

  .bg-forest {
    background: var(--gradient-forest);
  }

  /* Border neon */
  .border-neon-cyan {
    border-color: var(--cyan-500);
  }

  .border-neon-magenta {
    border-color: var(--magenta-500);
  }

  .border-neon-lime {
    border-color: var(--lime-500);
  }

  .border-neon-gold {
    border-color: var(--xp-gold);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   KEYFRAME ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */
@keyframes glow-pulse {

  0%,
  100% {
    opacity: 1;
    filter: brightness(1);
  }

  50% {
    opacity: 0.85;
    filter: brightness(1.15);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* Skeleton shimmer — premium loading effect (Spotify/Discord-like) */
.skeleton-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 40%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.06) 60%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .skeleton-shimmer {
    animation: none;
    background: none;
  }
}

@keyframes spin-slow {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }

  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

@keyframes eq-bounce {

  0%,
  100% {
    transform: scaleY(1);
  }

  50% {
    transform: scaleY(0.3);
  }
}

@keyframes typing {

  0%,
  60%,
  100% {
    transform: translateY(0);
  }

  30% {
    transform: translateY(-4px);
  }
}

@keyframes achievement-slide {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes graffiti-shake {

  0%,
  100% {
    transform: rotate(0deg);
  }

  25% {
    transform: rotate(-2deg);
  }

  75% {
    transform: rotate(2deg);
  }
}

@keyframes terminal-blink {

  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

@keyframes neon-flicker {

  0%,
  19%,
  21%,
  23%,
  25%,
  54%,
  56%,
  100% {
    opacity: 1;
    text-shadow: var(--glow-cyan);
  }

  20%,
  24%,
  55% {
    opacity: 0.8;
    text-shadow: none;
  }
}

@keyframes bar-fill {
  from {
    width: 0;
  }
}

@keyframes level-up {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.2);
    filter: brightness(1.5);
  }

  100% {
    transform: scale(1);
  }
}