/* ============================================================
   Inference Devices design system
   Single stylesheet, no preprocessor.
   Imported by every public/*.html page via /styles/site.css
   ============================================================ */

:root {
  --bg: #0a0e14;
  --bg-elevated: #131820;
  --bg-card: #1a2030;
  --border: #2a3142;
  --text: #e6e9ef;
  --text-muted: #8b95a7;
  --text-dim: #5a6478;
  --accent: #76b900;
  --accent-dim: #5a8f00;
  --accent-glow: rgba(118, 185, 0, 0.15);
  --warn: #f0a830;
  --link: #6da3ff;
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1100px;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Nav */
nav.site-nav {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
nav.site-nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  padding-bottom: 14px;
}
nav.site-nav .brand {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
}
nav.site-nav .brand .accent { color: var(--accent); }
nav.site-nav ul {
  display: flex;
  gap: 28px;
  list-style: none;
  font-size: 14px;
}
nav.site-nav ul a { color: var(--text-muted); }
nav.site-nav ul a:hover { color: var(--text); text-decoration: none; }

/* Breadcrumb */
.breadcrumb {
  font-size: 13px;
  color: var(--text-dim);
  padding: 18px 0 8px;
}
.breadcrumb a { color: var(--text-muted); }

/* Hero */
.hero { padding: 24px 0 48px; border-bottom: 1px solid var(--border); }
.hero .badges { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}
.badge.new { background: rgba(109, 163, 255, 0.12); color: var(--link); border-color: rgba(109, 163, 255, 0.4); }
.badge.warn { background: rgba(240, 168, 48, 0.1); color: var(--warn); border-color: rgba(240, 168, 48, 0.4); }
.hero h1 {
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 12px;
}
.hero .tagline { font-size: 20px; color: var(--text-muted); max-width: 720px; margin-bottom: 32px; }
.hero .mpn-row {
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-dim); font-family: var(--font-mono);
}

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; margin-top: 36px;
}
.stat { background: var(--bg-elevated); padding: 24px 20px; }
.stat .value { font-size: 28px; font-weight: 700; color: var(--accent); line-height: 1; letter-spacing: -0.02em; }
.stat .label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 8px; }
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 32px; }
  .hero .tagline { font-size: 17px; }
}

/* Sections */
section.block { padding: 56px 0; border-bottom: 1px solid var(--border); }
section.block h2 { font-size: 26px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 20px; }
section.block p { color: var(--text-muted); max-width: 720px; margin-bottom: 14px; }

/* CTA / Buttons */
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600; text-decoration: none;
  transition: all 0.15s ease; border: 1px solid transparent;
  cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--accent); color: #0a0e14; }
.btn-primary:hover { background: #84cc00; text-decoration: none; }
.btn-secondary { background: var(--bg-card); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--text-dim); text-decoration: none; }
.btn .channel { font-weight: 400; font-size: 12px; color: var(--text-dim); }
.btn-primary .channel { color: rgba(0, 0, 0, 0.5); }

/* Spec table */
.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 8px; }
@media (max-width: 720px) { .specs { grid-template-columns: 1fr; } }
.spec-group {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px;
}
.spec-group h3 {
  font-size: 14px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 14px;
}
.spec-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.spec-row:last-child { border-bottom: none; }
.spec-row .k { color: var(--text-dim); }
.spec-row .v { color: var(--text); font-family: var(--font-mono); font-size: 13px; }

/* Resource cards */
.resources { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 8px; }
.resource-card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  transition: border-color 0.15s ease;
}
.resource-card:hover { border-color: var(--accent-dim); }
.resource-card a { text-decoration: none; color: inherit; display: block; }
.resource-card .label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin-bottom: 8px; }
.resource-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.resource-card p { font-size: 13px; color: var(--text-muted); margin: 0; }

/* Lineup grid (homepage) */
.lineup { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 32px; }
.product-card {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
  display: block; color: inherit; text-decoration: none;
}
.product-card:hover { border-color: var(--accent-dim); transform: translateY(-2px); text-decoration: none; }
.product-card .tier { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.product-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.01em; }
.product-card .summary { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.5; }
.product-card .pcard-stats { display: flex; gap: 16px; font-size: 12px; color: var(--text-dim); font-family: var(--font-mono); border-top: 1px solid var(--border); padding-top: 14px; }
.product-card .pcard-stats span { display: flex; flex-direction: column; gap: 2px; }
.product-card .pcard-stats strong { color: var(--text); font-weight: 600; font-size: 14px; }

/* Chatbot */
.chatbot { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; margin-top: 16px; }
.chatbot .hint { font-size: 13px; color: var(--text-dim); margin-bottom: 18px; }
.chatbot-input-row { display: flex; gap: 8px; margin-bottom: 16px; }
.chatbot-input { flex: 1; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; color: var(--text); font-size: 14px; font-family: inherit; }
.chatbot-input:focus { outline: none; border-color: var(--accent-dim); }
.chatbot-suggestions { display: flex; flex-wrap: wrap; gap: 8px; }
.suggestion { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 6px 12px; font-size: 12px; color: var(--text-muted); cursor: pointer; transition: all 0.15s; }
.suggestion:hover { color: var(--text); border-color: var(--text-dim); }
.chatbot-output { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-top: 14px; font-size: 14px; color: var(--text-muted); min-height: 60px; display: none; line-height: 1.6; }
.chatbot-output.active { display: block; }

/* Quote CTA box */
.quote-cta {
  background: linear-gradient(135deg, var(--accent-glow), transparent);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-lg);
  padding: 32px; text-align: center; margin: 40px 0;
}
.quote-cta h3 { font-size: 22px; margin-bottom: 8px; }
.quote-cta p { color: var(--text-muted); margin: 0 auto 20px; max-width: 540px; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; font-weight: 500; }
.form-input, .form-textarea, .form-select {
  width: 100%; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
  color: var(--text); font-size: 14px; font-family: inherit;
}
.form-input:focus, .form-textarea:focus, .form-select:focus { outline: none; border-color: var(--accent-dim); }
.form-textarea { resize: vertical; min-height: 100px; }

/* Footer */
footer { padding: 40px 0; color: var(--text-dim); font-size: 13px; text-align: center; border-top: 1px solid var(--border); margin-top: 60px; }
footer a { color: var(--text-muted); }
footer .tel { font-family: var(--font-mono); }