@font-face {
  font-family: 'DM Sans';
  src: url('/fonts/DMSans-Variable.woff2') format('woff2');
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('/fonts/DMSans-Variable-Italic.woff2') format('woff2');
  font-weight: 100 1000;
  font-style: italic;
  font-display: swap;
}

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  :root {
    /* ── Matte Surfaces (RGB channels for Tailwind opacity support) ── */
    --bg-base: 11 11 16;
    --bg-channel: 26 26 35;
    --bg-chat: 19 19 26;
    --bg-members: 26 26 35;
    --bg-elevated: 37 37 48;
    --bg-input: 17 17 24;
    --bg-overlay: rgba(0, 0, 0, 0.85);

    /* ── Borders ── */
    --border-hard: 34 34 44;
    --border-soft: 42 42 54;

    /* ── Pastel Accents ── */
    --accent-mint: 134 239 172;
    --accent-peach: 252 165 165;
    --accent-lavender: 196 181 253;
    --accent-sky: 125 211 252;
    --accent-amber: 252 211 77;
    --accent-rose: 253 164 175;
    --accent-coral: 251 146 60;

    /* ── Primary Action (replaces blurple) ── */
    --accent-primary: 124 108 246;
    --accent-primary-hover: 107 92 224;
    --accent-primary-active: 95 79 208;

    /* ── Text Hierarchy ── */
    --text-primary: 239 239 239;
    --text-secondary: 160 160 170;
    --text-tertiary: 92 92 104;
    --text-category: 72 72 84;
    --text-message: 216 216 222;
    --text-link: 125 211 252;
    --text-positive: 134 239 172;
    --text-warning: 252 211 77;
    --text-danger: 252 165 165;

    /* ── Interactive ── */
    --interactive-hover: rgba(255, 255, 255, 0.06);
    --interactive-active: rgba(255, 255, 255, 0.12);
    --interactive-selected: rgba(255, 255, 255, 0.16);
    --interactive-muted: 58 58 68;

    /* ── Status ── */
    --status-online: 134 239 172;
    --status-idle: 252 211 77;
    --status-dnd: 252 165 165;
    --status-offline: 58 58 68;

    /* ── Glass Material ── */
    --glass-bg: rgba(20, 20, 26, 0.52);
    --glass-modal-bg: rgba(20, 20, 26, 0.82);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-highlight: rgba(255, 255, 255, 0.05);

    /* ── Notification ── */
    --notification: 253 164 175;
  }

  * {
    @apply border-0;
    outline: none !important;
  }

  ::selection {
    background: rgba(134, 239, 172, 0.25);
    color: rgb(var(--text-primary));
  }

  html, body, #root {
    @apply h-full w-full overflow-hidden bg-surface-base text-txt-message;
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    font-optical-sizing: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
  }

  /* Suppress native text selection and callout on mobile interactive elements.
     Our global useGlobalLongPress handler provides context menus instead.
     Text can still be copied via context menu "Copy Text" option. */
  @media (max-width: 767px) {
    * {
      -webkit-touch-callout: none;
    }

    button, [role="button"], [data-context-menu] {
      -webkit-user-select: none;
      user-select: none;
    }
  }

  /* Thin scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }

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

  ::-webkit-scrollbar-thumb {
    background-color: rgb(var(--bg-input));
    border-radius: 9999px;
    border: 2px solid transparent;
    background-clip: padding-box;
  }

  ::-webkit-scrollbar-thumb:hover {
    background-color: rgb(var(--bg-channel));
  }

  .no-scrollbar::-webkit-scrollbar {
    display: none;
  }

  /* Dark theme auto-fill */
  input:-webkit-autofill,
  input:-webkit-autofill:hover,
  input:-webkit-autofill:focus {
    -webkit-text-fill-color: #ffffff;
    -webkit-box-shadow: 0 0 0px 1000px #111118 inset;
    transition: background-color 5000s ease-in-out 0s;
  }
}

@layer components {
  /* ── Glass Material Tiers ──
   * .glass        — Popovers, context menus, autocomplete (small, no backdrop)
   * .glass-modal  — Center-screen dialogs (large, with backdrop, higher opacity for legibility)
   * .glass-strip  — Space sidebar edge (moved to @layer utilities to win over bg-surface-* utilities)
   * .glass-bubble — Persistent floating controls (voice bar, input pill)
   * .glass-pill   — Inline decorations (reactions, tags, lighter blur)
   *
   * RULE: Every floating surface uses a glass tier. Never use bg-surface-elevated for overlays.
   * See CLAUDE.md "Surface Material Tiers" for the full decision guide.
   */

  /* Standard glass — popovers, floating elements */
  .glass {
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow:
      0 2px 8px rgba(0, 0, 0, 0.25),
      0 8px 24px rgba(0, 0, 0, 0.15),
      inset 0 1px 0 var(--glass-highlight);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  /* Floating bubble glass — bottom bar, input pill */
  .glass-bubble {
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow:
      0 2px 8px rgba(0, 0, 0, 0.20),
      0 8px 24px rgba(0, 0, 0, 0.12),
      inset 0 1px 0 var(--glass-highlight);
  }

  /* Modal glass — center-screen dialogs with backdrop */
  .glass-modal {
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    background: var(--glass-modal-bg);
    border: 1px solid var(--glass-border);
    box-shadow:
      0 4px 16px rgba(0, 0, 0, 0.30),
      0 12px 40px rgba(0, 0, 0, 0.20),
      inset 0 1px 0 var(--glass-highlight);
  }

  /* Reaction pill glass — lighter blur for small inline elements */
  .glass-pill {
    backdrop-filter: blur(12px) saturate(110%);
    -webkit-backdrop-filter: blur(12px) saturate(110%);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  }
  .glass-pill:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.14);
  }
  .glass-pill-mine {
    background: rgba(134, 239, 172, 0.10);
    border-color: rgba(134, 239, 172, 0.25);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(134, 239, 172, 0.06);
  }
  .glass-pill-mine:hover {
    background: rgba(134, 239, 172, 0.16);
  }

  /* ── Input Tiers ── */
  .input-standard {
    @apply bg-surface-input rounded px-3 py-2 text-sm text-txt-primary
           placeholder:text-txt-tertiary outline-none
           border border-white/[0.06] shadow-input
           focus:ring-2 focus:ring-accent-primary focus:border-accent-primary/30
           transition-colors;
  }
  .input-search {
    @apply bg-surface-input rounded px-3 py-1.5 text-sm text-txt-primary
           placeholder:text-txt-tertiary outline-none
           border border-white/[0.06] shadow-input
           focus:ring-1 focus:ring-accent-primary focus:border-accent-primary/30
           transition-colors;
  }
  .input-embedded {
    @apply bg-transparent text-txt-primary
           placeholder:text-txt-tertiary/60 outline-none;
  }
  .input-danger {
    @apply bg-surface-input rounded px-3 py-2 text-sm text-txt-primary
           placeholder:text-txt-tertiary outline-none
           border border-white/[0.06] shadow-input
           focus:ring-2 focus:ring-accent-rose focus:border-accent-rose/30
           transition-colors;
  }

  /* iOS Safari auto-zooms on input focus when computed font-size is below
     16px. Bumping every input tier (and bare <input>/<textarea>/<select>)
     to 16px on mobile prevents the zoom without changing desktop sizing.
     `!important` is required because Tailwind utilities (e.g. `text-[15px]`
     on the chat composer textarea, `text-sm` on form fields) are emitted in
     the @layer utilities block — which comes after @layer components in the
     cascade — so they would otherwise override these rules.
     There is no legitimate reason to use a <16px font-size on a mobile
     input; the override is universally correct. */
  @media (max-width: 767px) {
    .input-standard,
    .input-search,
    .input-embedded,
    .input-danger,
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="number"],
    input[type="search"],
    input[type="tel"],
    input[type="url"],
    input[type="datetime-local"],
    textarea,
    select,
    [contenteditable="true"],
    [contenteditable="plaintext-only"] {
      font-size: 16px !important;
    }
  }
}

/* Accessibility: fall back to solid surfaces when transparency is reduced */
@media (prefers-reduced-transparency: reduce) {
  .glass {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgb(var(--bg-channel));
  }
  .glass-strip {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgb(var(--bg-channel));
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.20);
  }
  .glass-bubble {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgb(var(--bg-elevated));
  }
  .glass-modal {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgb(var(--bg-elevated));
  }
  .glass-pill {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgb(var(--bg-elevated));
  }
}

@layer utilities {
  /* Space strip glass — in utilities layer so md:glass-strip wins over bg-surface-* */
  .glass-strip {
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    background: var(--glass-bg);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.03),
      2px 0 12px rgba(0, 0, 0, 0.20);
  }

  .rounded-inherit {
    border-radius: inherit;
  }
  
  .scrollbar-thin::-webkit-scrollbar {
    width: 4px;
  }

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

  .scrollbar-thin::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 100px;
  }
}

/* ── Emoji Mart Overrides ── */
.emoji-picker-wrapper em-emoji-picker {
  --em-rgb-background: 20, 20, 26;
  --em-rgb-input: 17, 17, 24;
  --em-rgb-color: 216, 216, 222;
  --em-color-border: rgba(255, 255, 255, 0.07);
  --em-color-border-over: rgba(255, 255, 255, 0.12);
  --rgb-accent: 124, 108, 246;
  --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  border: none !important;
  background: transparent !important;
  max-height: 400px;
}

/* Mobile bottom-sheet variant: stretch the custom element to fill the
   sheet's width (so `dynamicWidth: true` can recompute the grid against
   the real container). Height is left to emoji-mart's own layout — the
   picker manages its internal scroll region against its measured height
   and forcing `height: 100%` here would collapse its category nav off-
   screen because the custom element doesn't propagate flex sizing into
   its shadow root. The 400px desktop cap is fine for mobile too; the
   sheet's `max-height: min(60dvh, 60vh)` gives us ~440-500px to play
   with on common phone viewports. */
.emoji-picker-wrapper--mobile em-emoji-picker {
  width: 100%;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.animate-fade-in {
  animation: fadeIn 0.15s ease-out;
}

.animate-slide-up {
  animation: slideUp 0.15s ease-out;
}

/* Slides into place from above — used for popovers that open upward */
@keyframes slideDown {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.animate-slide-down {
  animation: slideDown 0.15s ease-out;
}

@keyframes typingFadeIn {
  from { transform: translateY(4px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.animate-typing-in {
  animation: typingFadeIn 0.15s ease-out;
}

@keyframes gradientPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.animate-gradient-pulse {
  animation: gradientPulse 4s ease-in-out infinite;
}

/* ── Skeleton Loading ── */
@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

.skeleton {
  background: linear-gradient(90deg,
    rgba(255,255,255,0.04) 0%,
    rgba(255,255,255,0.08) 40%,
    rgba(255,255,255,0.04) 80%
  );
  background-size: 400px 100%;
  animation: shimmer 1.8s ease-in-out infinite;
  border-radius: 4px;
}

.skeleton-circle { border-radius: 50%; }
.skeleton-bar    { height: 12px; border-radius: 6px; }
.skeleton-block  { border-radius: 8px; }

@keyframes search-flash {
  0% { background-color: rgba(124, 108, 246, 0.2); }
  100% { background-color: transparent; }
}
.search-highlight { animation: search-flash 2s ease-out; }

@keyframes stepForward {
  from { transform: translateX(24px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes stepBack {
  from { transform: translateX(-24px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
.animate-step-forward {
  animation: stepForward 0.25s ease-out;
}
.animate-step-back {
  animation: stepBack 0.25s ease-out;
}

/* ── Incoming Call Animations ── */

/* Liquid ripple: soft gradient orb that expands and dissolves */
@keyframes callRippleLiquid {
  0% {
    scale: 0.3;
    opacity: 0.45;
  }
  70% {
    opacity: 0.12;
  }
  100% {
    scale: 2.8;
    opacity: 0;
  }
}

/* Soft multi-layered halo around avatar */
@keyframes callGlowSoft {
  0%, 100% {
    box-shadow:
      0 0 20px rgba(134, 239, 172, 0.06),
      0 0 40px rgba(134, 239, 172, 0.04),
      0 0 80px rgba(134, 239, 172, 0.02);
  }
  50% {
    box-shadow:
      0 0 24px rgba(134, 239, 172, 0.12),
      0 0 48px rgba(134, 239, 172, 0.06),
      0 0 96px rgba(134, 239, 172, 0.03);
  }
}

/* Traveling light refraction across glass card surface */
@keyframes callRefraction {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* Gentle breathing glow on accept button */
@keyframes callButtonBreath {
  0%, 100% {
    box-shadow:
      0 0 12px rgba(134, 239, 172, 0.08),
      0 0 28px rgba(134, 239, 172, 0.04);
  }
  50% {
    box-shadow:
      0 0 18px rgba(134, 239, 172, 0.16),
      0 0 36px rgba(134, 239, 172, 0.06);
  }
}

.animate-call-ripple {
  animation: callRippleLiquid 4s cubic-bezier(0.25, 0.46, 0.45, 0.94) infinite;
}

.animate-call-glow {
  animation: callGlowSoft 4s ease-in-out infinite;
}

.animate-call-button-glow {
  animation: callButtonBreath 3s ease-in-out infinite;
}

/* Light refraction shimmer overlay on the call card */
.call-refraction::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 0%,
    transparent 35%,
    rgba(134, 239, 172, 0.03) 42%,
    rgba(134, 239, 172, 0.05) 50%,
    rgba(134, 239, 172, 0.03) 58%,
    transparent 65%,
    transparent 100%
  );
  animation: callRefraction 6s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  .animate-call-ripple,
  .animate-call-glow,
  .animate-call-button-glow { animation: none !important; }
  .call-refraction::after { animation: none !important; opacity: 0; }
  .skeleton { animation: none; }
}

/* ── MOBILE SCREEN TRANSITIONS ── */
.mobile-screen-enter {
  transform: translateX(100%);
}
.mobile-screen-enter-active {
  transform: translateX(0);
  transition: transform 200ms ease-out;
}
.mobile-screen-exit-active {
  transform: translateX(100%);
  transition: transform 200ms ease-out;
}

/* ── Electron window drag regions ── */
.titlebar-drag { -webkit-app-region: drag; }
.titlebar-no-drag { -webkit-app-region: no-drag; }