@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600;1,700&family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ── Design Tokens ──────────────────────────────────────────────────────── */
@layer base {
  :root {
    --color-bg:         #F5F0E8;
    --color-surface:    #EDE8DD;
    --color-surface-2:  #E3DDD0;
    --color-border:     #C4B9A4;
    --color-border-2:   #A89880;
    --color-text:       #1C1814;
    --color-text-2:     #4A3F35;
    --color-text-3:     #6B5F52;
    --color-gold:       #8B6914;
    --color-gold-hover: #6B5010;
    --color-gold-light: #F0E6CC;
    --color-success:    #3D6B4F;
    --color-danger:     #8B3A2A;
    --color-warning:    #8B6914;
    --nav-height:       64px;
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --color-bg:         #1C1814;
      --color-surface:    #252018;
      --color-surface-2:  #2E2820;
      --color-border:     #4A4238;  /* FIX 7: bumped from #3A3228 for visibility */
      --color-border-2:   #5A5248;
      --color-text:       #F0EBE0;
      --color-text-2:     #C8BFB0;
      --color-text-3:     #A89880;
      --color-gold:       #C4963A;
      --color-gold-hover: #D4A648;
      --color-gold-light: #2A2218;
      --color-success:    #5A9B72;
      --color-danger:     #C4614A;
      --color-warning:    #C4963A;
    }
  }

  html {
    background-color: var(--color-bg);
    scroll-behavior: smooth;
  }

  body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  /* FIX 9: Typography hierarchy */
  h1, h2, h3, h4 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text);
    line-height: 1.2;
  }
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-family: 'DM Sans', sans-serif; font-size: 1rem; font-weight: 500; letter-spacing: 0; }
  h4 { font-size: 1.25rem; }

  ::selection {
    background-color: var(--color-gold-light);
    color: var(--color-text);
  }

  ::-webkit-scrollbar       { width: 6px; }
  ::-webkit-scrollbar-track { background: var(--color-surface); }
  ::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
  ::-webkit-scrollbar-thumb:hover { background: var(--color-border-2); }
  html { scrollbar-width: thin; scrollbar-color: var(--color-border) var(--color-surface); }

  :focus-visible {
    outline: 3px solid var(--color-gold);
    outline-offset: 2px;
    border-radius: 2px;
  }

  a { transition: color 150ms ease; }
}

/* ── Components ──────────────────────────────────────────────────────── */
@layer components {

  .skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--color-gold);
    color: #fff;
    padding: 0.5rem 1rem;
    z-index: 9999;
    border-radius: 0 0 4px 0;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
  }
  .skip-link:focus { top: 0; }

  /* ── Site header ──────────────────────────────────────────────────── */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--nav-height);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .site-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }
  .site-brand {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gold);
    text-decoration: none;
    white-space: nowrap;
  }
  .site-brand:hover { color: var(--color-gold-hover); }

  /* FIX 12: Nav search */
  .nav-search {
    display: none;
  }
  .nav-search-input {
    height: 32px;
    width: 200px;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: 2px;
    color: var(--color-text);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.8125rem;
    padding: 0 0.75rem;
    transition: border-color 150ms ease;
  }
  .nav-search-input::placeholder { color: var(--color-text-3); }
  .nav-search-input:focus {
    border-color: var(--color-gold);
    outline: none;
  }
  @media (min-width: 1024px) {
    .nav-search { display: block; }
  }

  /* Nav links */
  .site-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  .site-nav a {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-3);
    text-decoration: none;
    transition: color 150ms ease;
    white-space: nowrap;
  }
  .site-nav a:hover { color: var(--color-gold); }
  /* FIX 5: Active nav state */
  .site-nav .nav-active,
  .site-nav a.active { color: var(--color-gold); }
  .site-nav .nav-danger { color: var(--color-danger); }
  .site-nav .nav-danger:hover { opacity: 0.8; }

  .hamburger {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-text-3);
    cursor: pointer;
    padding: 0.5rem;
    min-height: 44px;
    min-width: 44px;
    align-items: center;
    justify-content: center;
  }

  /* FIX 10: Mobile panel */
  .mobile-panel {
    display: none;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.5rem 1rem;
    overflow: hidden;
    transition: max-height 200ms ease;
  }
  .mobile-panel a {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-3);
    text-decoration: none;
    padding: 0.75rem 0;
    min-height: 44px;
    display: flex;
    align-items: center;
    transition: color 150ms ease;
    border-bottom: 1px solid var(--color-border);
  }
  .mobile-panel a:last-child { border-bottom: none; }
  .mobile-panel a:hover { color: var(--color-gold); }
  .mobile-panel .nav-active,
  .mobile-panel a.active { color: var(--color-gold); }
  .mobile-panel .nav-danger { color: var(--color-danger); }
  .mobile-panel.is-open { display: block; }

  @media (max-width: 767px) {
    .site-nav { display: none; }
    .hamburger { display: flex; }
  }

  /* ── Container ────────────────────────────────────────────────────── */
  .container {
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  /* ── Cards ────────────────────────────────────────────────────────── */
  .card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 1.5rem;
    transition: border-color 150ms ease, box-shadow 150ms ease;
  }
  .card:hover {
    border-color: var(--color-border-2);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  }
  /* FIX 4: Bio card variant with gold left accent */
  .card-bio {
    border-left: 3px solid var(--color-gold);
  }
  .card-bio:hover {
    border-left-color: var(--color-gold-hover);
  }
  /* FIX 7: Dark mode card shadow */
  @media (prefers-color-scheme: dark) {
    .card {
      box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    }
    .card:hover {
      box-shadow: 0 3px 12px rgba(0,0,0,0.4);
    }
  }

  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
  }

  /* ── Buttons ──────────────────────────────────────────────────────── */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gold);
    color: #FFFFFF;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
    border-radius: 2px;
    border: none;
    cursor: pointer;
    min-height: 44px;
    transition: background 150ms ease;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-decoration: none;
  }
  .btn-primary:hover { background: var(--color-gold-hover); }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-text-2);
    border: 1px solid var(--color-border);
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
    border-radius: 2px;
    cursor: pointer;
    min-height: 44px;
    transition: all 150ms ease;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-decoration: none;
  }
  .btn-secondary:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-text-3);
    border: none;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: 2px;
    cursor: pointer;
    min-height: 44px;
    transition: color 150ms ease;
    text-decoration: none;
    letter-spacing: 0.03em;
    text-transform: uppercase;
  }
  .btn-ghost:hover { color: var(--color-gold); }
  /* FIX 8: Destructive ghost */
  .btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-danger);
    border: none;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: 2px;
    cursor: pointer;
    min-height: 44px;
    text-decoration: none;
    letter-spacing: 0.03em;
    text-transform: uppercase;
  }
  .btn-danger:hover { opacity: 0.8; }

  /* ── Inputs ───────────────────────────────────────────────────────── */
  .input {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 2px;
    padding: 0.625rem 0.875rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9375rem;
    color: var(--color-text);
    min-height: 44px;
    transition: border-color 150ms ease;
  }
  .input:focus { border-color: var(--color-gold); outline: none; }
  .input::placeholder { color: var(--color-text-3); }

  /* ── Badges ───────────────────────────────────────────────────────── */
  .badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 2px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .badge-gold {
    background: var(--color-gold-light);
    color: var(--color-gold);
    border: 1px solid var(--color-gold);
  }
  .badge-stone {
    background: var(--color-surface-2);
    color: var(--color-text-3);
    border: 1px solid var(--color-border);
  }
  .badge-green {
    background: #EAF3EE;
    color: var(--color-success);
    border: 1px solid var(--color-success);
  }
  .badge-red {
    background: #F5EAE8;
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
  }
  @media (prefers-color-scheme: dark) {
    .badge-green { background: #1A2E22; }
    .badge-red   { background: #2A1614; }
  }

  /* ── Chat bubbles ─────────────────────────────────────────────────── */
  .chat-bubble-ai {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0 4px 4px 4px;
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-2);
    max-width: 85%;
  }
  .chat-bubble-user {
    background: var(--color-gold-light);
    border: 1px solid var(--color-gold);
    border-radius: 4px 0 4px 4px;
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
    max-width: 85%;
    margin-left: auto;
  }

  .ai-disclosure {
    font-size: 0.75rem;
    color: var(--color-text-3);
    font-style: italic;
    text-align: center;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
  }

  /* ── Section spacing ──────────────────────────────────────────────── */
  .section {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }
  @media (min-width: 768px) {
    .section { padding-top: 4rem; padding-bottom: 4rem; }
  }

  /* ── Stats grid ───────────────────────────────────────────────────── */
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    text-align: center;
  }
  @media (max-width: 639px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
  }
  /* FIX 1: Numeric rendering for stats */
  .stat-value {
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-gold);
    line-height: 1;
    font-variant-numeric: lining-nums tabular-nums;
    font-feature-settings: "lnum" 1, "tnum" 1;
  }
  .stat-label {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.5rem;
  }

  /* ── Footer ───────────────────────────────────────────────────────── */
  .site-footer {
    border-top: 1px solid var(--color-border);
    padding: 3rem 1.5rem 2rem;
    text-align: center;
    color: var(--color-text-3);
    font-size: 0.8125rem;
  }
  .site-footer-inner {
    max-width: 1400px;
    margin: 0 auto;
  }
  /* FIX 6: Decorative rule */
  .footer-rule {
    width: 60px;
    height: 1px;
    background: var(--color-gold);
    margin: 0 auto 1.5rem;
    border: none;
  }
  .footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    margin-bottom: 1.25rem;
  }
  .footer-links a {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-3);
    text-decoration: none;
    transition: color 150ms ease;
  }
  .footer-links a:hover { color: var(--color-gold); }
  .footer-copy {
    color: var(--color-text-3);
    font-size: 0.75rem;
    line-height: 1.6;
  }

  /* FIX 11: Page fade-in */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  main { animation: fadeIn 200ms ease forwards; }
  @media (prefers-reduced-motion: reduce) {
    main { animation: none; }
  }
}

/* ── Print ───────────────────────────────────────────────────────────── */
@media print {
  .site-header, .site-footer, .hamburger, .nav-search,
  .btn-primary, .btn-secondary, .btn-ghost { display: none !important; }
  body { background: white; color: black; }
  .card { border: 1px solid #999; }
  main { animation: none; }
}