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

@layer base {
  :root {
    /* Light is the product default — calm off-white wellness palette */
    --background: 210 40% 98%; /* #F8FAFC */
    --foreground: 222 47% 11%;
    --card: 0 0% 100%;
    --card-foreground: 222 47% 11%;
    --popover: 0 0% 100%;
    --popover-foreground: 222 47% 11%;
    --primary: 199 89% 48%; /* logo blue */
    --primary-foreground: 0 0% 100%;
    --secondary: 210 40% 96%;
    --secondary-foreground: 222 47% 11%;
    --muted: 210 40% 96%;
    --muted-foreground: 215 25% 32%;
    --accent: 176 70% 42%; /* logo teal/green */
    --accent-foreground: 0 0% 100%;
    --destructive: 0 72% 45%;
    --destructive-foreground: 0 0% 100%;
    --border: 214 32% 90%;
    --input: 214 32% 91%;
    --ring: 176 70% 42%;
    --radius: 1rem;

    /* Brand from mainlogo.png — teal-green → azure blue */
    --logo-teal: #26d4ca;
    --logo-blue: #00a8e8;
    --neon-blue: #00a8e8;
    --neon-cyan: #26d4ca;
    --neon-teal: #26d4ca;
    --neon-emerald: #10b981;
    --navy-deep: #0f172a;
    --navy: #1e293b;
    --glass-bg: rgba(255, 255, 255, 0.88);
    --glass-bg-strong: rgba(255, 255, 255, 0.94);
    --body-text: #334155;
    --glow-blue: 0 0 16px rgba(0, 168, 232, 0.35);
    --glow-teal: 0 0 16px rgba(38, 212, 202, 0.4);
    --glow-border: 0 0 12px rgba(38, 212, 202, 0.25);
    --gradient-neon: linear-gradient(135deg, #26d4ca 0%, #14c4db 48%, #00a8e8 100%);
    --chat-bg: #f8fafc;
    --bubble-user-bg: #00a8e8;
    --bubble-ai-bg: #ffffff;
    --bubble-ai-border: #e2e8f0;
    --theme-transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease,
      box-shadow 0.35s ease;
  }

  .light {
    --background: 210 40% 98%;
    --foreground: 222 47% 11%;
    --card: 0 0% 100%;
    --card-foreground: 222 47% 11%;
    --popover: 0 0% 100%;
    --popover-foreground: 222 47% 11%;
    --primary: 199 89% 48%;
    --primary-foreground: 0 0% 100%;
    --secondary: 210 40% 96%;
    --secondary-foreground: 222 47% 11%;
    --muted: 210 40% 96%;
    --muted-foreground: 215 25% 32%;
    --accent: 176 70% 42%;
    --accent-foreground: 0 0% 100%;
    --destructive: 0 72% 45%;
    --destructive-foreground: 0 0% 100%;
    --border: 214 32% 90%;
    --input: 214 32% 91%;
    --ring: 176 70% 42%;
    --logo-teal: #26d4ca;
    --logo-blue: #00a8e8;
    --neon-blue: #00a8e8;
    --neon-cyan: #0d9488;
    --neon-teal: #0f766e;
    --glass-bg: rgba(255, 255, 255, 0.88);
    --glass-bg-strong: rgba(255, 255, 255, 0.94);
    --body-text: #334155;
    --glow-blue: 0 2px 8px rgba(0, 168, 232, 0.18);
    --glow-teal: 0 2px 8px rgba(38, 212, 202, 0.16);
    --glow-border: none;
    --gradient-neon: linear-gradient(135deg, #26d4ca 0%, #14c4db 48%, #00a8e8 100%);
    --chat-bg: #f8fafc;
    --bubble-user-bg: #00a8e8;
    --bubble-ai-bg: #ffffff;
    --bubble-ai-border: #e2e8f0;
  }

  /* Keep .dark as alias of product dark tokens */
  .dark {
    --background: 222 47% 11%; /* #0F172A */
    --foreground: 210 40% 98%;
    --card: 217 33% 17%;
    --card-foreground: 210 40% 98%;
    --popover: 217 33% 14%;
    --popover-foreground: 210 40% 98%;
    --primary: 193 100% 45%; /* logo blue #00A8E8 */
    --primary-foreground: 0 0% 100%;
    --secondary: 217 33% 17%;
    --secondary-foreground: 210 40% 96%;
    --muted: 217 33% 17%;
    --muted-foreground: 215 20% 72%;
    --accent: 176 70% 49%; /* logo teal #26D4CA */
    --accent-foreground: 222 47% 11%;
    --destructive: 0 72% 42%;
    --destructive-foreground: 0 0% 100%;
    --border: 215 25% 27%;
    --input: 217 33% 16%;
    --ring: 176 70% 49%;
    --logo-teal: #26d4ca;
    --logo-blue: #00a8e8;
    --neon-blue: #00a8e8;
    --neon-cyan: #26d4ca;
    --neon-teal: #26d4ca;
    --glass-bg: rgba(30, 41, 59, 0.82);
    --glass-bg-strong: rgba(30, 41, 59, 0.92);
    --body-text: #e2e8f0;
    --glow-blue: 0 0 18px rgba(0, 168, 232, 0.45), 0 0 36px rgba(0, 168, 232, 0.2);
    --glow-teal: 0 0 18px rgba(38, 212, 202, 0.5), 0 0 36px rgba(38, 212, 202, 0.22);
    --glow-border: 0 0 14px rgba(38, 212, 202, 0.35), 0 0 28px rgba(0, 168, 232, 0.2);
    --gradient-neon: linear-gradient(135deg, #26d4ca 0%, #14c4db 48%, #00a8e8 100%);
    --chat-bg: #0f172a;
    --bubble-user-bg: #00a8e8;
    --bubble-ai-bg: #334155;
    --bubble-ai-border: rgba(51, 65, 85, 0.85);
  }
}

@font-face {
  font-family: 'IRANSansX';
  src: url('/fonts/iransansx/IRANSansX-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'IRANSansX';
  src: url('/fonts/iransansx/IRANSansX-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'IRANSansX';
  src: url('/fonts/iransansx/IRANSansX-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@layer base {
  * {
    border-color: hsl(var(--border) / 0.45);
  }

  html {
    color-scheme: light;
    height: 100%;
    overflow: hidden;
    overscroll-behavior: none;
  }

  @supports (height: 100svh) {
    html {
      height: 100svh;
    }
  }

  html.dark {
    color-scheme: dark;
  }

  html.light {
    color-scheme: light;
  }

  body,
  #root {
    height: 100%;
    width: 100%;
    overflow: hidden;
    overscroll-behavior: none;
  }

  #root {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  body {
    @apply text-foreground antialiased;
    font-family: 'IRANSansX', 'Tahoma', system-ui, sans-serif;
    background-color: #f1f5f9;
    margin: 0;
    transition: var(--theme-transition);
  }

  html.dark body {
    background-color: #0f172a;
  }

  /* Smooth theme toggling across surfaces */
  html,
  .app-mobile-shell,
  .app-header,
  .glass-panel,
  .glass-panel-strong,
  .glass-panel-chat,
  .composer-glass,
  .bubble-user,
  .bubble-ai,
  .progress-neon,
  .progress-neon-fill {
    transition: var(--theme-transition);
  }

  h1,
  h2,
  h3,
  h4 {
    color: hsl(var(--foreground));
    letter-spacing: -0.01em;
  }

  p,
  label,
  span,
  li {
    color: inherit;
  }
}

@layer components {
  /* Desktop stage: soft wellness ambience */
  .app-desktop-stage {
    @apply relative flex w-full flex-1 justify-center overflow-hidden;
    min-height: 0;
    background-color: #0f172a;
    background-image:
      radial-gradient(ellipse 50% 40% at 16% 20%, rgba(14, 165, 233, 0.08), transparent 72%),
      radial-gradient(ellipse 45% 36% at 84% 16%, rgba(20, 184, 166, 0.06), transparent 70%),
      radial-gradient(ellipse 40% 30% at 72% 82%, rgba(51, 65, 85, 0.35), transparent 72%);
  }

  .app-desktop-stage::before,
  .app-desktop-stage::after {
    content: '';
    pointer-events: none;
    position: absolute;
    border-radius: 9999px;
    filter: blur(90px);
    z-index: 0;
    opacity: 0.4;
  }

  .app-desktop-stage::before {
    width: min(40vw, 320px);
    height: min(40vw, 320px);
    top: -6%;
    left: 10%;
    background: rgba(14, 165, 233, 0.14);
  }

  .app-desktop-stage::after {
    width: min(36vw, 280px);
    height: min(36vw, 280px);
    bottom: -4%;
    right: 8%;
    background: rgba(20, 184, 166, 0.1);
  }

  /* Front phone surface: calm opaque shell for readable content */
  .app-mobile-shell {
    @apply relative z-10 flex w-full max-w-[430px] flex-1 flex-col overflow-hidden;
    min-height: 0;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: #0f172a;
    border: 1px solid rgb(51 65 85 / 0.55);
    box-shadow:
      0 1px 2px rgb(0 0 0 / 0.2),
      0 20px 50px rgb(0 0 0 / 0.35);
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .app-mobile-shell::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
  }

  @media (max-width: 430px) {
    .app-mobile-shell {
      border: none;
      border-radius: 0;
      box-shadow: none;
      background: #0f172a;
    }

    html.light .app-mobile-shell {
      background: #f8fafc;
    }
  }

  html.light .app-desktop-stage {
    background-color: #e2e8f0;
    background-image:
      radial-gradient(ellipse 50% 40% at 16% 20%, rgba(14, 165, 233, 0.1), transparent 72%),
      radial-gradient(ellipse 45% 36% at 84% 16%, rgba(20, 184, 166, 0.08), transparent 70%),
      radial-gradient(ellipse 55% 40% at 50% 108%, rgba(148, 163, 184, 0.2), transparent 65%);
  }

  html.light .app-desktop-stage::before {
    background: rgba(14, 165, 233, 0.16);
    opacity: 0.55;
  }

  html.light .app-desktop-stage::after {
    background: rgba(20, 184, 166, 0.14);
    opacity: 0.5;
  }

  html.light .app-mobile-shell {
    background: #f8fafc;
    border-color: rgb(226 232 240 / 0.95);
    box-shadow:
      0 1px 2px rgb(15 23 42 / 0.04),
      0 20px 40px rgb(15 23 42 / 0.08);
  }

  .glass-panel {
    @apply relative rounded-2xl backdrop-blur-xl;
    background: var(--glass-bg);
    border: 1px solid rgb(226 232 240 / 0.9);
    box-shadow: 0 1px 2px rgb(15 23 42 / 0.04);
  }

  /* Chat messages surface — high-intensity glass, no extra border */
  .glass-panel-chat {
    @apply relative h-full min-h-0 overflow-hidden rounded-none;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(42px) saturate(1.7);
    -webkit-backdrop-filter: blur(42px) saturate(1.7);
    border: none;
    box-shadow:
      0 16px 40px rgba(47, 127, 212, 0.14),
      0 10px 28px rgba(52, 184, 150, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.45);
  }

  .glass-panel-chat::before {
    content: '';
    pointer-events: none;
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 80% 50% at 100% 0%, rgba(56, 160, 230, 0.18), transparent 55%),
      radial-gradient(ellipse 70% 45% at 0% 100%, rgba(52, 184, 150, 0.16), transparent 50%);
  }

  html.dark .glass-panel-chat {
    background: rgba(12, 20, 36, 0.22);
    box-shadow:
      0 16px 40px rgba(0, 140, 210, 0.16),
      0 10px 28px rgba(52, 184, 150, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.08);
  }

  html.light .glass-panel-chat {
    background: rgba(255, 255, 255, 0.22);
    box-shadow:
      0 16px 40px rgba(47, 127, 212, 0.12),
      0 10px 28px rgba(52, 184, 150, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.7);
  }

  /* Chat composer */
  /* Chat composer — single flat background (no nested input fill) */
  .composer-glass {
    @apply relative flex min-h-12 w-full items-end gap-2 rounded-2xl p-1.5;
    background: #ffffff;
    border: 1px solid rgb(226 232 240);
    box-shadow: 0 1px 2px rgb(15 23 42 / 0.05);
  }

  .composer-glass textarea.input-neon {
    min-height: 48px;
    padding-block: 0.75rem;
    padding-inline: 0.75rem;
    line-height: 1.5;
    transition: height 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .composer-glass:focus-within {
    border-color: rgb(38 212 202 / 0.55);
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.3),
      0 3px 8px rgb(15 23 42 / 0.08);
  }

  html.dark .composer-glass,
  html.dark .composer-glass:focus-within {
    background: #1e293b;
    border-color: rgb(51 65 85 / 0.9);
    box-shadow: 0 2px 6px rgb(0 0 0 / 0.25);
  }

  html.dark .composer-glass:focus-within {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.45),
      0 3px 10px rgb(0 0 0 / 0.35),
      0 0 14px rgb(38 212 202 / 0.35),
      0 0 22px rgb(0 168 232 / 0.2);
  }

  html.light .composer-glass,
  html.light .composer-glass:focus-within {
    background: #ffffff;
    border-color: rgb(203 213 225 / 0.95);
  }

  html.light .composer-glass:focus-within {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.28),
      0 3px 8px rgb(15 23 42 / 0.08),
      0 0 8px rgb(38 212 202 / 0.16);
  }

  .composer-glass .input-neon,
  html.light .composer-glass .input-neon,
  html.dark .composer-glass .input-neon {
    background: transparent !important;
    border: none !important;
    color: hsl(var(--foreground));
    box-shadow: none !important;
    backdrop-filter: none;
  }

  .composer-glass .input-neon::placeholder,
  html.light .composer-glass .input-neon::placeholder,
  html.dark .composer-glass .input-neon::placeholder {
    color: hsl(var(--muted-foreground) / 0.85);
  }

  .composer-glass .input-neon:focus-visible {
    box-shadow: none !important;
  }

  .glass-panel-strong {
    @apply relative rounded-2xl backdrop-blur-md;
    background: var(--glass-bg-strong);
    border: 1px solid rgb(226 232 240 / 0.95);
    box-shadow:
      0 8px 24px rgb(15 23 42 / 0.08),
      0 1px 2px rgb(15 23 42 / 0.04);
  }

  .neon-border {
    border: 1px solid rgb(226 232 240);
    background: var(--glass-bg);
    box-shadow: 0 1px 2px rgb(15 23 42 / 0.04);
  }

  html.light .glass-panel,
  html.light .glass-panel-strong {
    border-color: rgb(226 232 240 / 0.95);
    box-shadow:
      0 1px 2px rgb(15 23 42 / 0.04),
      0 4px 12px rgb(15 23 42 / 0.03);
  }

  html.dark .glass-panel,
  html.dark .glass-panel-strong {
    border-color: rgb(51 65 85 / 0.55);
    box-shadow: 0 1px 2px rgb(0 0 0 / 0.2);
  }

  html.dark .neon-border {
    border-color: rgb(51 65 85 / 0.55);
    background: var(--glass-bg);
  }

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

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

  .btn-neon {
    @apply relative inline-flex items-center justify-center rounded-xl px-4 py-2.5 text-sm font-semibold text-white transition-all duration-300;
    background: var(--gradient-neon);
    background-size: 160% 160%;
    border: 1px solid transparent;
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.08), 0 2px 8px rgb(38 212 202 / 0.2);
  }

  .btn-neon:hover:not(:disabled) {
    filter: brightness(1.05);
    border-color: rgb(38 212 202 / 0.55);
    box-shadow: 0 3px 8px rgb(15 23 42 / 0.1), 0 4px 12px rgb(38 212 202 / 0.28);
  }

  html.light .btn-neon {
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.06), 0 2px 8px rgb(38 212 202 / 0.16);
  }

  html.light .btn-neon:hover:not(:disabled) {
    filter: brightness(1.04);
    border-color: rgb(38 212 202 / 0.5);
    box-shadow: 0 3px 8px rgb(15 23 42 / 0.08), 0 4px 12px rgb(38 212 202 / 0.22);
  }

  /* Dark mode: logo teal/blue neon glow */
  html.dark .btn-neon {
    box-shadow:
      0 2px 6px rgb(0 0 0 / 0.35),
      0 0 12px rgb(38 212 202 / 0.45),
      0 0 28px rgb(0 168 232 / 0.25);
  }

  html.dark .btn-neon:hover:not(:disabled) {
    filter: brightness(1.08);
    border-color: #26d4ca;
    box-shadow:
      0 3px 10px rgb(0 0 0 / 0.4),
      0 0 16px rgb(38 212 202 / 0.6),
      0 0 36px rgb(0 168 232 / 0.32);
  }

  .btn-neon:focus,
  .btn-neon:focus-visible {
    outline: none;
    border-width: 1px;
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.35),
      0 3px 8px rgb(15 23 42 / 0.1),
      0 0 10px rgb(38 212 202 / 0.22);
  }

  html.dark .btn-neon:focus,
  html.dark .btn-neon:focus-visible {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.5),
      0 3px 10px rgb(0 0 0 / 0.4),
      0 0 14px rgb(38 212 202 / 0.45),
      0 0 24px rgb(0 168 232 / 0.25);
  }

  .btn-glass {
    @apply inline-flex items-center justify-center rounded-xl px-4 py-2.5 text-sm font-medium transition-all duration-300;
    background: rgb(241 245 249 / 0.9);
    border: 1px solid rgb(203 213 225 / 0.95);
    color: var(--body-text);
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.05);
  }

  .btn-glass:hover:not(:disabled) {
    border-color: rgb(38 212 202 / 0.5);
    background: rgb(248 250 252);
    color: hsl(var(--foreground));
    box-shadow: 0 3px 8px rgb(15 23 42 / 0.07);
  }

  html.dark .btn-glass {
    background: rgb(30 41 59 / 0.85);
    border-color: rgb(38 212 202 / 0.28);
    box-shadow: 0 2px 6px rgb(0 0 0 / 0.25);
  }

  html.dark .btn-glass:hover:not(:disabled) {
    border-color: #26d4ca;
    background: rgb(51 65 85 / 0.75);
    box-shadow:
      0 3px 10px rgb(0 0 0 / 0.35),
      0 0 12px rgb(38 212 202 / 0.28),
      0 0 22px rgb(0 168 232 / 0.15);
  }

  html.light .btn-glass {
    background: rgba(255, 255, 255, 0.92);
    border-color: rgb(203 213 225 / 0.95);
  }

  .btn-glass:focus,
  .btn-glass:focus-visible {
    outline: none;
    border-width: 1px;
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.3),
      0 3px 8px rgb(15 23 42 / 0.08),
      0 0 8px rgb(38 212 202 / 0.16);
  }

  html.dark .btn-glass:focus,
  html.dark .btn-glass:focus-visible {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.45),
      0 3px 10px rgb(0 0 0 / 0.35),
      0 0 12px rgb(38 212 202 / 0.35),
      0 0 20px rgb(0 168 232 / 0.18);
  }

  .btn-danger-neon {
    @apply inline-flex items-center justify-center rounded-xl px-4 py-2.5 text-sm font-medium transition-all duration-300;
    background: rgba(127, 29, 29, 0.35);
    border: 1px solid rgba(248, 113, 113, 0.45);
    color: #fecaca;
    box-shadow: 0 2px 4px rgb(0 0 0 / 0.2);
  }

  html.light .btn-danger-neon {
    background: rgba(254, 226, 226, 0.9);
    border-color: rgba(220, 38, 38, 0.35);
    color: #b91c1c;
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.05);
  }

  .btn-danger-neon:hover:not(:disabled) {
    border-color: rgba(248, 113, 113, 0.75);
    box-shadow: 0 3px 8px rgb(0 0 0 / 0.25), 0 0 14px rgba(239, 68, 68, 0.3);
    color: #fff;
  }

  html.light .btn-danger-neon:hover:not(:disabled) {
    color: #991b1b;
    background: rgba(254, 202, 202, 0.95);
    box-shadow: 0 3px 8px rgb(15 23 42 / 0.08);
  }

  .btn-danger-neon:focus,
  .btn-danger-neon:focus-visible {
    outline: none;
    border-width: 1px;
    border-color: #f87171;
    box-shadow:
      0 0 0 1px rgb(248 113 113 / 0.4),
      0 3px 8px rgb(15 23 42 / 0.1);
  }

  .input-neon {
    @apply flex h-11 w-full items-center rounded-xl px-3 py-0 text-sm leading-relaxed transition-all duration-300;
    background: rgb(248 250 252);
    border: 1px solid rgb(203 213 225 / 0.9);
    color: hsl(var(--foreground));
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.05);
  }

  .input-neon::placeholder {
    color: hsl(var(--muted-foreground) / 0.8);
  }

  html.dark .input-neon {
    background: rgb(30 41 59 / 0.9);
    border-color: rgb(71 85 105 / 0.75);
    box-shadow: 0 2px 6px rgb(0 0 0 / 0.25);
  }

  html.light .input-neon {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgb(203 213 225 / 0.95);
    color: hsl(var(--foreground));
    box-shadow: 0 2px 4px rgb(15 23 42 / 0.05);
  }

  html.light .input-neon::placeholder {
    color: hsl(var(--muted-foreground) / 0.8);
  }

  .input-neon:focus,
  .input-neon:focus-visible {
    outline: none;
    border-width: 1px;
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.35),
      0 3px 8px rgb(15 23 42 / 0.08),
      0 0 10px rgb(38 212 202 / 0.2);
  }

  html.dark .input-neon:focus,
  html.dark .input-neon:focus-visible {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.45),
      0 3px 10px rgb(0 0 0 / 0.35),
      0 0 14px rgb(38 212 202 / 0.4),
      0 0 22px rgb(0 168 232 / 0.22);
  }

  html.light .input-neon:focus,
  html.light .input-neon:focus-visible {
    border-color: #26d4ca;
    box-shadow:
      0 0 0 1px rgb(38 212 202 / 0.28),
      0 3px 8px rgb(15 23 42 / 0.08),
      0 0 8px rgb(38 212 202 / 0.16);
  }

  .input-neon:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }

  .progress-neon {
    @apply relative h-2.5 w-full overflow-hidden rounded-full;
    background: rgb(226 232 240 / 0.85);
    border: 1px solid rgb(203 213 225 / 0.6);
  }

  html.light .progress-neon {
    background: rgb(241 245 249);
    border-color: rgb(226 232 240);
  }

  html.dark .progress-neon {
    background: rgb(30 41 59);
    border-color: rgb(51 65 85 / 0.7);
  }

  .progress-neon-fill {
    @apply h-full rounded-full transition-all duration-500 ease-out;
    background: linear-gradient(90deg, #26d4ca 0%, #00a8e8 100%);
    box-shadow: none;
  }

  html.dark .progress-neon-fill {
    background: linear-gradient(90deg, #26d4ca 0%, #00a8e8 100%);
    box-shadow: 0 0 10px rgb(38 212 202 / 0.45);
  }

  .ambient-glow {
    position: relative;
  }

  .ambient-glow::before {
    content: '';
    pointer-events: none;
    position: absolute;
    inset: -20% -10% auto;
    height: 55%;
    background: radial-gradient(ellipse at center, rgba(0, 102, 255, 0.25), transparent 70%);
    z-index: 0;
  }

  .nav-dock {
    @apply fixed z-50 mx-auto;
    left: 0.75rem;
    right: 0.75rem;
    bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
    max-width: 28rem;
    margin-inline: auto;
    background: rgba(10, 15, 29, 0.72);
    border: 1px solid rgba(0, 210, 255, 0.32);
    border-radius: 1.25rem;
    backdrop-filter: blur(18px);
    box-shadow:
      0 8px 32px rgba(0, 0, 0, 0.45),
      var(--glow-border);
  }

  .nav-item-active-dot {
    @apply absolute -top-0.5 h-1.5 w-1.5 rounded-full;
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan), 0 0 18px rgba(0, 210, 255, 0.6);
  }

  .avatar-glow {
    @apply rounded-full;
    padding: 2px;
    background: var(--gradient-neon);
    box-shadow: 0 0 18px rgba(0, 210, 255, 0.4);
  }

  .bubble-user {
    @apply inline-flex w-fit flex-col rounded-2xl py-2.5 text-base leading-7;
    max-width: calc(85% * 1.2);
    padding-inline: calc(0.875rem * 1.2);
    background: rgba(255, 255, 255, 0.28);
    backdrop-filter: blur(18px) saturate(1.35);
    -webkit-backdrop-filter: blur(18px) saturate(1.35);
    border: 1px solid rgb(47 127 212 / 0.2);
    color: hsl(var(--foreground));
    box-shadow:
      -4px 5px 10px rgba(47, 127, 212, 0.22),
      0 1px 0 rgba(255, 255, 255, 0.35) inset;
  }

  html.light .bubble-user {
    background: rgba(236, 246, 255, 0.55);
    color: hsl(var(--foreground));
    border-color: rgb(47 127 212 / 0.2);
    box-shadow:
      -4px 5px 10px rgba(47, 127, 212, 0.18),
      0 1px 0 rgba(255, 255, 255, 0.7) inset;
  }

  html.dark .bubble-user {
    background: rgba(40, 90, 150, 0.22);
    border-color: rgb(59 158 255 / 0.2);
    box-shadow:
      -4px 5px 10px rgba(56, 140, 220, 0.22),
      0 1px 0 rgba(255, 255, 255, 0.08) inset;
  }

  html.light .bubble-ai {
    color: hsl(var(--foreground));
  }

  html.light .ai-thinking-bubble {
    background: rgba(255, 255, 255, 0.28);
    border: none;
    box-shadow: 0 8px 24px rgba(47, 127, 212, 0.12);
  }

  /* Readable brand accents on light surfaces */
  html.light .text-neon-cyan {
    color: #0f766e;
  }

  html.light .text-neon-teal {
    color: #0d9488;
  }

  html.light .text-neon-emerald {
    color: #059669;
  }

  .bubble-ai {
    @apply rounded-2xl px-1 py-1 text-base leading-7;
    background: transparent;
    border: none;
    box-shadow: none;
    color: hsl(var(--foreground));
  }

  .bubble-ai p,
  .bubble-ai li,
  .bubble-ai .chat-prose {
    text-align: justify;
    text-align-last: right;
    text-justify: inter-word;
  }

  .bubble-user .chat-prose {
    width: fit-content;
    max-width: 100%;
    text-align: right;
    white-space: pre-wrap;
  }

  .bubble-ai strong {
    font-weight: 600;
  }

  /* Digits stay readable under RTL justify without breaking line layout. */
  .bubble-ai .chat-num,
  .bubble-user .chat-num {
    color: hsl(var(--foreground));
    font-variant-numeric: tabular-nums;
    letter-spacing: 0;
    unicode-bidi: isolate;
    white-space: nowrap;
  }

  .bubble-ai ol,
  .bubble-ai ul {
    list-style-position: outside;
    padding-inline-start: 1.35rem;
    margin-inline-end: 0.15rem;
  }

  .bubble-ai li::marker {
    color: hsl(var(--foreground));
    font-weight: 600;
  }

  /* App chrome — sticky top bar */
  .app-header {
    position: sticky;
    top: 0;
    z-index: 50;
    flex-shrink: 0;
    padding-top: env(safe-area-inset-top, 0px);
    background: rgb(248 250 252 / 0.85);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid rgb(226 232 240 / 0.8);
    box-shadow: none;
  }

  html.dark .app-header {
    background: rgb(15 23 42 / 0.88);
    border-bottom-color: rgb(51 65 85 / 0.55);
  }

  /* Scrollable route area below header */
  .app-main {
    @apply flex min-h-0 flex-1 flex-col overflow-hidden;
  }

  /* Auth screens without app header still respect the top inset */
  .app-auth-screen {
    padding-top: env(safe-area-inset-top, 0px);
  }

  .header-menu-panel {
    @apply absolute left-0 z-[70] mt-2 w-56 origin-top-left overflow-hidden rounded-2xl p-1.5;
    background: #ffffff;
    border: 1px solid rgb(226 232 240);
    box-shadow:
      0 12px 32px rgb(15 23 42 / 0.18),
      0 1px 2px rgb(15 23 42 / 0.06);
  }

  html.dark .header-menu-panel {
    background: #1e293b;
    border-color: rgb(51 65 85 / 0.9);
    box-shadow:
      0 12px 32px rgb(0 0 0 / 0.45),
      0 1px 2px rgb(0 0 0 / 0.25);
  }

  .header-menu-identity {
    @apply mb-1 border-b border-slate-200 px-3 py-2.5 dark:border-slate-700/60;
  }

  .header-menu-item {
    @apply flex w-full items-center gap-2.5 rounded-xl px-3 py-2.5 text-sm text-body transition-colors duration-200;
  }

  .header-menu-item:hover,
  .header-menu-item:focus-visible {
    background: rgb(241 245 249);
    color: hsl(var(--foreground));
    outline: none;
  }

  html.dark .header-menu-item:hover,
  html.dark .header-menu-item:focus-visible {
    background: rgb(51 65 85 / 0.65);
    color: #f8fafc;
  }

  .header-menu-item-danger {
    @apply text-red-600;
  }

  .header-menu-item-danger:hover,
  .header-menu-item-danger:focus-visible {
    background: rgb(254 226 226 / 0.7);
    color: #b91c1c;
  }

  html.dark .header-menu-item-danger {
    color: #fca5a5;
  }

  html.dark .header-menu-item-danger:hover,
  html.dark .header-menu-item-danger:focus-visible {
    background: rgb(127 29 29 / 0.35);
    color: #fecaca;
  }

  .ai-thinking-bubble {
    @apply rounded-2xl;
    background: rgba(255, 255, 255, 0.16);
    border: none;
    box-shadow: 0 8px 24px rgba(47, 127, 212, 0.12);
  }

  html.dark .ai-thinking-bubble {
    background: rgba(12, 20, 36, 0.35);
  }

  .ai-thinking-dots {
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }

  .ai-thinking-dot {
    width: 6px;
    height: 6px;
    border-radius: 9999px;
    background: #26d4ca;
    box-shadow: 0 0 8px rgba(38, 212, 202, 0.55);
    animation: ai-dot-bounce 1.15s ease-in-out infinite;
  }

  html.dark .ai-thinking-dot {
    box-shadow: 0 0 8px rgba(38, 212, 202, 0.75), 0 0 14px rgba(0, 168, 232, 0.4);
  }

  .ai-thinking-dot:nth-child(2) {
    animation-delay: 0.16s;
    background: #00a8e8;
  }

  .ai-thinking-dot:nth-child(3) {
    animation-delay: 0.32s;
    background: #26d4ca;
  }

  .ai-stream-cursor {
    display: inline-block;
    width: 2px;
    height: 1.05em;
    margin-inline-start: 3px;
    vertical-align: text-bottom;
    border-radius: 1px;
    background: linear-gradient(180deg, #26d4ca 0%, #00a8e8 100%);
    box-shadow: none;
    animation: ai-cursor-blink 0.95s step-end infinite;
  }

  html.dark .ai-stream-cursor {
    box-shadow:
      0 0 8px rgba(38, 212, 202, 0.75),
      0 0 14px rgba(0, 168, 232, 0.45);
  }

  @keyframes ai-dot-bounce {
    0%,
    80%,
    100% {
      transform: translateY(0);
      opacity: 0.45;
    }
    40% {
      transform: translateY(-4px);
      opacity: 1;
    }
  }

  @keyframes ai-cursor-blink {
    0%,
    100% {
      opacity: 1;
    }
    50% {
      opacity: 0;
    }
  }

  .page-with-dock {
    padding-bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  }

  .text-body {
    color: var(--body-text);
  }
}

/* RTL Support */
[dir='rtl'] {
  direction: rtl;
  text-align: right;
}

[dir='ltr'] {
  direction: ltr;
  text-align: left;
}

/* Hide scrollbar tracks everywhere — scroll still works with mouse wheel & touch */
* {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

*::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
  background: transparent;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}