/* AIT BIOFIELD OS — Global Design System */
:root {
  --bg:       #030712;
  --bg1:      #0a0f1e;
  --bg2:      #0d1428;
  --cyan:     #00AEEF;
  --cyan-dim: #4DEBFF;
  --gold:     #D4AF37;
  --gold-lt:  #F5D36B;
  --text:     #e2e8f0;
  --muted:    #94a3b8;
  --border:   rgba(255,255,255,0.08);
  --card-bg:  rgba(255,255,255,0.03);
  --radius:   8px;
  --font:     'Courier New', Courier, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--cyan-dim); }
img { max-width: 100%; height: auto; display: block; }

/* NAV */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(3,7,18,0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  padding: 0 24px;
}
.header-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; gap: 20px;
  height: 56px;
}
.logo-wrap { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-wrap img { width: 36px; height: 36px; object-fit: cover; border-radius: 4px; }
.logo-name { font-size: 16px; font-weight: 700; color: var(--cyan); letter-spacing: 0.08em; }
.logo-sub  { font-size: 10px; color: var(--muted); letter-spacing: 0.12em; display: block; }
.site-nav  { display: flex; gap: 6px; overflow-x: auto; flex-wrap: wrap; margin-left: auto; }
.site-nav a {
  font-size: 11px; letter-spacing: 0.1em; color: var(--muted);
  padding: 4px 10px; border-radius: 4px; white-space: nowrap;
  border: 1px solid transparent;
  transition: all .2s;
}
.site-nav a:hover, .site-nav a.active {
  color: var(--cyan); border-color: var(--cyan);
  background: rgba(0,174,239,0.08);
}

/* LAYOUT */
.page-wrap { max-width: 1280px; margin: 0 auto; padding: 48px 24px 80px; }
.section { margin-bottom: 64px; }
.section-title {
  font-size: 11px; letter-spacing: 0.18em; color: var(--gold);
  text-transform: uppercase; margin-bottom: 8px;
}
h1 { font-size: clamp(28px,4vw,48px); line-height: 1.15; color: var(--text); }
h2 { font-size: clamp(20px,3vw,32px); line-height: 1.25; color: var(--text); }
h3 { font-size: 16px; color: var(--cyan-dim); margin-bottom: 8px; }
.cyan { color: var(--cyan); }
.gold  { color: var(--gold); }
.muted { color: var(--muted); }

/* HERO */
.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; margin-bottom: 72px;
}
.hero-logo { border-radius: 12px; overflow: hidden; box-shadow: 0 0 60px rgba(0,174,239,0.2); }
.hero-logo img { width: 100%; }
.hero-tag  { font-size: 11px; letter-spacing: 0.2em; color: var(--gold); margin-bottom: 16px; }
.hero h1   { margin-bottom: 20px; }
.hero-sub  { color: var(--muted); font-size: 15px; margin-bottom: 32px; max-width: 480px; }
.cta-row   { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  padding: 12px 28px; background: var(--cyan); color: #000;
  border-radius: 6px; font-family: var(--font); font-size: 12px;
  font-weight: 700; letter-spacing: 0.12em; cursor: pointer; border: none;
  transition: background .2s;
}
.btn-primary:hover { background: var(--cyan-dim); color: #000; }
.btn-outline {
  padding: 12px 28px; background: transparent; color: var(--cyan);
  border: 1px solid var(--cyan); border-radius: 6px;
  font-family: var(--font); font-size: 12px; letter-spacing: 0.12em;
  cursor: pointer; transition: all .2s;
}
.btn-outline:hover { background: rgba(0,174,239,0.1); }

/* CARDS */
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.card-icon { font-size: 28px; margin-bottom: 12px; }
.card h3 { color: var(--cyan-dim); margin-bottom: 8px; }
.card p   { color: var(--muted); font-size: 13px; }
.card .tag {
  display: inline-block; margin-top: 16px;
  font-size: 10px; letter-spacing: 0.14em; color: var(--gold);
  border: 1px solid rgba(212,175,55,0.4); padding: 3px 10px; border-radius: 4px;
}

/* FULL-WIDTH IMAGE */
.poster { border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.poster img { width: 100%; height: auto; }
.poster-caption {
  padding: 12px 16px; background: var(--bg1);
  font-size: 11px; color: var(--muted); letter-spacing: 0.1em;
}

/* GALLERY */
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.gallery-item {
  border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color .2s, transform .2s;
}
.gallery-item:hover { border-color: var(--cyan); transform: scale(1.01); }
.gallery-item img { width: 100%; height: 240px; object-fit: cover; }
.gallery-label {
  padding: 10px 14px; background: var(--bg1);
  font-size: 11px; color: var(--muted); letter-spacing: 0.08em;
}

/* PDF CARDS */
.pdf-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.pdf-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px;
  display: flex; flex-direction: column;
  transition: border-color .2s;
}
.pdf-card:hover { border-color: var(--gold); }
.pdf-card .pdf-icon { font-size: 36px; margin-bottom: 16px; }
.pdf-card h3 { color: var(--gold-lt); font-size: 15px; margin-bottom: 8px; }
.pdf-card p  { color: var(--muted); font-size: 13px; flex: 1; margin-bottom: 20px; }
.pdf-card .pdf-dl {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; background: rgba(212,175,55,0.1);
  border: 1px solid var(--gold); border-radius: 6px;
  color: var(--gold); font-size: 12px; letter-spacing: 0.1em;
  transition: background .2s;
}
.pdf-card .pdf-dl:hover { background: rgba(212,175,55,0.2); color: var(--gold-lt); }

/* VIDEO */
.video-wrap {
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}
.video-wrap video { width: 100%; max-height: 600px; }

/* STAT ROW */
.stat-row { display: flex; gap: 32px; flex-wrap: wrap; margin-bottom: 40px; }
.stat { flex: 1; min-width: 140px; }
.stat-val { font-size: 32px; color: var(--cyan); font-weight: 700; }
.stat-lbl { font-size: 11px; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

/* PIPELINE STEPS */
.pipeline { display: flex; gap: 0; overflow-x: auto; margin: 32px 0; }
.step {
  flex: 1; min-width: 130px;
  background: var(--bg1); border: 1px solid var(--border);
  padding: 20px 16px; text-align: center; position: relative;
}
.step:not(:last-child)::after {
  content: '→'; position: absolute; right: -12px; top: 50%;
  transform: translateY(-50%); color: var(--cyan); font-size: 18px; z-index: 1;
}
.step-num { font-size: 10px; color: var(--gold); letter-spacing: 0.14em; margin-bottom: 6px; }
.step-title { font-size: 12px; color: var(--text); font-weight: 700; }
.step-sub   { font-size: 11px; color: var(--muted); margin-top: 4px; }

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-size: 11px; color: var(--muted); letter-spacing: 0.08em;
}
footer span { color: var(--gold); }
footer p { margin: 4px 0; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; }
  .hero-logo { display: none; }
  .stat-row { gap: 16px; }
  .site-nav a { font-size: 10px; padding: 3px 8px; }
}