/* ==========================================================================
   base.css — reset, design tokens, typography, shared primitives
   Values are transcribed from the original Tailwind config + Tailwind v3
   defaults so the converted site renders identically to the React build.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Neutrals */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Brand — teal is the primary UI accent throughout the site */
  --teal-50: #f0fdfa;
  --teal-100: #ccfbf1;
  --teal-200: #99f6e4;
  --teal-300: #5eead4;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --teal-800: #115e59;
  --teal-900: #134e4a;

  --emerald-50: #ecfdf5;
  --emerald-100: #d1fae5;
  --emerald-200: #a7f3d0;
  --emerald-500: #10b981;
  --emerald-600: #059669;
  --emerald-700: #047857;

  /* Department accents */
  --red-50: #fef2f2;
  --red-100: #fee2e2;
  --red-200: #fecaca;
  --red-400: #f87171;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --red-700: #b91c1c;

  --pink-50: #fdf2f8;
  --pink-100: #fce7f3;
  --pink-200: #fbcfe8;
  --pink-500: #ec4899;
  --pink-600: #db2777;
  --rose-500: #f43f5e;
  --rose-600: #e11d48;

  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;

  --cyan-50: #ecfeff;
  --cyan-200: #a5f3fc;
  --cyan-500: #06b6d4;
  --cyan-600: #0891b2;

  --green-50: #f0fdf4;
  --green-200: #bbf7d0;
  --green-500: #22c55e;
  --green-600: #16a34a;

  --purple-50: #faf5ff;
  --purple-100: #f3e8ff;
  --purple-200: #e9d5ff;
  --purple-500: #a855f7;
  --purple-600: #9333ea;
  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;

  --indigo-50: #eef2ff;
  --indigo-200: #c7d2fe;
  --indigo-500: #6366f1;
  --indigo-600: #4f46e5;

  --orange-50: #fff7ed;
  --orange-200: #fed7aa;
  --orange-500: #f97316;
  --orange-600: #ea580c;
  --amber-600: #d97706;

  --yellow-400: #facc15;
  --yellow-500: #eab308;

  /* Elevation (Tailwind v3 shadow scale) */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --drop-shadow-lg: drop-shadow(0 10px 8px rgb(0 0 0 / 0.04))
    drop-shadow(0 4px 3px rgb(0 0 0 / 0.1));

  /* Radii */
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset — mirrors Tailwind Preflight so hand-written rules behave the same
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  border: 0 solid var(--gray-200);
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  line-height: 1.5;
  scroll-behavior: smooth;
}

body {
  /* Exactly the stack from tailwind.config.js -> theme.fontFamily.sans */
  font-family: Inter, system-ui, sans-serif;
  line-height: inherit;
  min-height: 100vh;
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: inherit;
  font-weight: inherit;
}

a {
  color: inherit;
  text-decoration: inherit;
}

ol,
ul {
  list-style: none;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  vertical-align: middle;
}

img,
video {
  max-width: 100%;
  height: auto;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: 100%;
  font-weight: inherit;
  line-height: inherit;
  color: inherit;
}

button,
[type="button"],
[type="submit"] {
  -webkit-appearance: button;
  background-color: transparent;
  background-image: none;
  cursor: pointer;
}

button:disabled {
  cursor: default;
}

input::placeholder,
textarea::placeholder {
  opacity: 1;
  color: var(--gray-400);
}

textarea {
  resize: vertical;
}

strong,
b {
  font-weight: bolder;
}

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */

/* Tailwind `max-w-7xl mx-auto px-4 sm:px-6 lg:px-8` */
.shell {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

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

@media (min-width: 1024px) {
  .shell {
    padding-inline: 2rem;
  }
}

/* Tailwind `container mx-auto px-4` — breakpoint-stepped max-width */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* --------------------------------------------------------------------------
   4. Icons
   Reproduces how react-icons renders Feather glyphs: a 24x24 stroked SVG
   sized in `em` so the parent font-size controls the icon size.
   -------------------------------------------------------------------------- */
.icon {
  /* Inherits `display: block` from the reset above, exactly as Tailwind's
     Preflight does for every svg — icons are never baseline-aligned. */
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Explicit pixel sizes (used where the original set `w-* h-*`) */
.icon--16 {
  width: 1rem;
  height: 1rem;
}
.icon--20 {
  width: 1.25rem;
  height: 1.25rem;
}
.icon--24 {
  width: 1.5rem;
  height: 1.5rem;
}

/* --------------------------------------------------------------------------
   5. Shared helpers carried over from the original index.css
   -------------------------------------------------------------------------- */
.line-clamp-2,
.line-clamp-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-2 {
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.line-clamp-3 {
  -webkit-line-clamp: 3;
  line-clamp: 3;
}

.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--teal-600);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--teal-700);
}

/* --------------------------------------------------------------------------
   6. Accessibility
   -------------------------------------------------------------------------- */
@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;
  }
}