classroomio/packages/ui/src/index.css

@import 'tailwindcss' prefix(ui);
@import 'tw-animate-css';
@import './custom/animation/marketing-layers.css';

@source './**/*.{html,js,ts,svelte}';
@source '../node_modules/layerchart/dist';

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

/**
 * Shared z-index scale.
 *
 * Tailwind supports arbitrary integer z-index values out of the box (e.g. `z-137`), which is
 * how one-off stacking numbers end up scattered across the app and collide as new layers get
 * added. Prefer these named layers instead so intent is documented at the call site — see
 * `packages/ui/README.md` for the full write-up and when to reach for each one.
 *
 *   z-app-bar          (100) Sticky/fixed app chrome: top bars, sticky in-page headers, the
 *                             desktop sidebar rail, the side panel.
 *   z-app-bar-elevated (150) A sidebar (mobile sheet or desktop) that must render above other
 *                             z-app-bar content while open, e.g. the course content sidebar.
 *   z-modal             (200) Blocking dialogs/drawers.
 *   z-menu-elevated     (250) Dropdown/select/popover content that must escape a z-app-bar,
 *                             z-app-bar-elevated, or z-modal ancestor.
 *
 * Anything not listed (dropdowns, sheets, drawers) uses Tailwind's default `z-50`,
 * which already sits above normal page content. Tooltips use `z-menu-elevated` so they
 * remain visible over `z-app-bar` chrome such as the transcript side panel.
 */
@utility z-app-bar {
  z-index: 100;
}

@utility z-app-bar-elevated {
  z-index: 150;
}

@utility z-modal {
  z-index: 200;
}

@utility z-menu-elevated {
  z-index: 250;
}

/*
 * `@utility` only emits a class when Tailwind's scanner sees that exact candidate
 * somewhere under `packages/ui/src` — it does not ship every documented layer just because
 * it's declared above. Safelist all four here so the compiled `@cio/ui` CSS always exposes
 * the full scale, regardless of which layers happen to be referenced inside this package
 * today; otherwise a consumer using e.g. `ui:z-menu-elevated` could silently get no rule.
 */
@source inline('ui:z-app-bar{,!}');
@source inline('ui:z-app-bar-elevated{,!}');
@source inline('ui:z-modal{,!}');
@source inline('ui:z-menu-elevated{,!}');

:root {
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.488 0.243 264.376);
  --primary-foreground: oklch(0.97 0.014 254.604);
  --secondary: oklch(0.967 0.001 286.375);
  --secondary-foreground: oklch(0.21 0.006 285.885);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.577 0.245 27.325);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.708 0 0);
  --chart-1: oklch(0.809 0.105 251.813);
  --chart-2: oklch(0.623 0.214 259.815);
  --chart-3: oklch(0.546 0.245 262.881);
  --chart-4: oklch(0.488 0.243 264.376);
  --chart-5: oklch(0.424 0.199 265.638);
  --radius: 0.625rem;
  --sidebar: oklch(0.985 0 0);
  --sidebar-foreground: oklch(0.145 0 0);
  --sidebar-primary: oklch(0.546 0.245 262.881);
  --sidebar-primary-foreground: oklch(0.97 0.014 254.604);
  --sidebar-accent: oklch(0.97 0 0);
  --sidebar-accent-foreground: oklch(0.205 0 0);
  --sidebar-border: oklch(0.922 0 0);
  --sidebar-ring: oklch(0.708 0 0);
}

.dark {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.424 0.199 265.638);
  --primary-foreground: oklch(0.97 0.014 254.604);
  --secondary: oklch(0.274 0.006 286.033);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.556 0 0);
  --chart-1: oklch(0.809 0.105 251.813);
  --chart-2: oklch(0.623 0.214 259.815);
  --chart-3: oklch(0.546 0.245 262.881);
  --chart-4: oklch(0.488 0.243 264.376);
  --chart-5: oklch(0.424 0.199 265.638);
  --sidebar: oklch(0.205 0 0);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.623 0.214 259.815);
  --sidebar-primary-foreground: oklch(0.97 0.014 254.604);
  --sidebar-accent: oklch(0.269 0 0);
  --sidebar-accent-foreground: oklch(0.985 0 0);
  --sidebar-border: oklch(1 0 0 / 10%);
  --sidebar-ring: oklch(0.556 0 0);
}

@theme inline {
  /* --font-cio: 'Geist', Arial, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol, Noto Color Emoji, sans-serif; */
  --font-cio: var(--font-sans);
  --default-font-family: var(--font-cio);
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --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-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);
  --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);
  --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);

  /* Course-app style animations (marketing / landing) */
  --animate-meteor: meteor 5s linear infinite;
  --animate-shimmer-marketing: shimmer-marketing 8s infinite;
  --animate-spin-around: spin-around calc(var(--speed) * 2) infinite linear;
  --animate-magicslide: magicslide var(--speed) ease-in-out infinite alternate;
  --animate-flip: flip 6s infinite steps(2, end);
  --animate-kitrotate: kitrotate 3s linear infinite both;
  --animate-shine: shine 2s linear infinite;
}

@layer base {
  * {
    @apply ui:border-border ui:outline-ring/50;
  }

  body {
    @apply ui:bg-background ui:text-foreground ui:font-cio;
  }

  button,
  input,
  select,
  optgroup,
  textarea,
  ::file-selector-button {
    @apply ui:font-cio;
  }

  .toaster {
    --normal-bg: var(--color-popover);
    --normal-text: var(--color-popover-foreground);
    --normal-border: var(--color-border);
  }
}

@property --border-angle {
  inherits: false;
  initial-value: 0deg;
  syntax: '<angle>';
}

@keyframes border {
  to {
    --border-angle: 360deg;
  }
}

@keyframes flip {
  to {
    transform: rotate(360deg);
  }
}

@keyframes kitrotate {
  to {
    transform: rotate(90deg);
  }
}

@keyframes shine {
  from {
    background-position: 0 0;
  }
  to {
    background-position: -200% 0;
  }
}

.animate-gradient-border {
  border: 1px solid transparent;
  background:
    linear-gradient(45deg, white, white) padding-box,
    conic-gradient(
        from var(--border-angle),
        rgb(148 163 184 / 0.3) 75%,
        var(--primary, #1d4ee2) 82%,
        var(--primary-foreground, white) 88%,
        var(--primary, #1d4ee2) 92%,
        rgb(148 163 184 / 0.3) 100%
      )
      border-box;
  transition: --border-angle 3s ease-in-out;
}

.animate-gradient-border:hover {
  animation: border 4s ease-in-out infinite;
}

.dark.animate-gradient-border {
  background:
    linear-gradient(45deg, rgb(0 0 0), rgb(0 0 0)) padding-box,
    conic-gradient(
        from var(--border-angle),
        rgb(71 85 105 / 0.48) 75%,
        var(--primary, #1d4ee2) 82%,
        var(--primary-foreground, black) 88%,
        var(--primary, #1d4ee2) 92%,
        rgb(71 85 105 / 0.48) 100%
      )
      border-box;
}