/* ==========================================================================
   Bulldog Dermatitis Handbook — Global Design System
   Template-ready: swap CSS variables to re-theme for any project
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Backgrounds */
  --bg:             #0a0a0a;
  --bg-card:        #111111;
  --bg-card-hover:  #161616;
  --bg-input:       #0e0e0e;
  --bg-overlay:     rgba(10, 10, 10, 0.92);

  /* Borders */
  --border:         #1e1e1e;
  --border-hover:   #2a2a2a;
  --border-accent:  rgba(212, 160, 96, 0.3);

  /* Text */
  --text:           #d0d0d0;
  --text-dim:       #777777;
  --text-faint:     #444444;
  --text-bright:    #e8e8e8;

  /* Accent — warm amber (bulldog fawn) */
  --accent:         #d4a060;
  --accent-dim:     #8a6a3a;
  --accent-glow:    rgba(212, 160, 96, 0.15);

  /* Semantic colors */
  --clinical:       #5b9bd5;   /* diagnostic / medical blue */
  --health:         #5a9e6f;   /* healthy / validated green */
  --warning:        #cc8844;   /* caution / yeast amber */
  --danger:         #c04040;   /* harmful / danger red */
  --info:           #7ab5cc;   /* informational teal */
  --plausible:      #b8a040;   /* plausible verdict */

  /* Layout */
  --max-width:      1200px;
  --nav-height:     56px;
  --radius:         6px;
  --radius-pill:    20px;

  /* Typography */
  --font:           'JetBrains Mono', monospace;
  --size-xs:        0.55rem;
  --size-sm:        0.65rem;
  --size-base:      0.78rem;
  --size-md:        0.85rem;
  --size-lg:        1.1rem;
  --size-xl:        1.4rem;
  --size-2xl:       1.8rem;
  --size-3xl:       2.4rem;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 15px;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: #333 #0a0a0a;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--bg); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--text-bright); }

img { max-width: 100%; display: block; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: var(--size-md);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(212, 160, 96, 0.4);
}

.nav-links { display: flex; gap: 24px; list-style: none; }
.nav-links a {
  font-size: var(--size-sm);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  font-family: var(--font);
  font-size: var(--size-sm);
  cursor: pointer;
  border-radius: var(--radius);
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
.section-label {
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.section-title {
  font-size: var(--size-xl);
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-bright);
  margin-bottom: 24px;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s, background 0.2s;
}
.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font);
  font-size: var(--size-sm);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
}
.btn-primary:hover { background: #e0b070; color: var(--bg); }

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text-bright); }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  line-height: 1.6;
}
.badge-validated { background: rgba(90, 158, 111, 0.15); color: var(--health); border: 1px solid rgba(90, 158, 111, 0.3); }
.badge-plausible { background: rgba(184, 160, 64, 0.15); color: var(--plausible); border: 1px solid rgba(184, 160, 64, 0.3); }
.badge-harmful { background: rgba(192, 64, 64, 0.15); color: var(--danger); border: 1px solid rgba(192, 64, 64, 0.3); }
.badge-clinical { background: rgba(91, 155, 213, 0.15); color: var(--clinical); border: 1px solid rgba(91, 155, 213, 0.3); }
.badge-community { background: rgba(212, 160, 96, 0.15); color: var(--accent); border: 1px solid var(--border-accent); }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--size-base);
}
th {
  text-align: left;
  font-size: var(--size-xs);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
}
tr:hover td { background: rgba(255,255,255,0.02); }

/* ---------- Callouts ---------- */
.callout {
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  background: var(--accent-glow);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: var(--size-base);
  margin: 24px 0;
}
.callout-danger { border-left-color: var(--danger); background: rgba(192, 64, 64, 0.08); }
.callout-info { border-left-color: var(--info); background: rgba(122, 181, 204, 0.08); }
.callout-health { border-left-color: var(--health); background: rgba(90, 158, 111, 0.08); }

/* ---------- Stats Bar ---------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-item {
  background: var(--bg-card);
  padding: 20px;
  text-align: center;
}
.stat-value {
  font-size: var(--size-xl);
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: var(--size-xs);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  font-size: var(--size-sm);
  color: var(--text-dim);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.disclaimer {
  font-size: var(--size-xs);
  color: var(--text-faint);
  line-height: 1.8;
  max-width: 800px;
  margin-top: 20px;
}

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.fade-in { animation: fadeIn 0.4s ease-out forwards; }
.fade-in-1 { animation-delay: 0.1s; opacity: 0; }
.fade-in-2 { animation-delay: 0.3s; opacity: 0; }
.fade-in-3 { animation-delay: 0.5s; opacity: 0; }
.fade-in-4 { animation-delay: 0.7s; opacity: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: var(--bg-overlay); backdrop-filter: blur(12px); padding: 20px 24px; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: block; }
  .section { padding: 48px 0; }
  .card-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: var(--size-lg); }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .stats-bar { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}