/* ============ Design Tokens ============ */
:root {
  --bg: #04070f;
  --bg-alt: #060c1a;
  --surface: #0b1428;
  --surface-2: #0e1a33;
  --border: rgba(59, 130, 246, 0.18);
  --border-strong: rgba(59, 130, 246, 0.38);
  --text: #eef2f9;
  --text-dim: #a3aec7;
  --text-muted: #6b7690;
  --brand: #2f7dfb;
  --brand-2: #22d3ee;
  --brand-gradient: linear-gradient(135deg, #22d3ee 0%, #2f7dfb 60%, #1d4ed8 100%);
  --brand-gradient-soft: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(47, 125, 251, 0.15));
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-glow: 0 0 60px rgba(47, 125, 251, 0.25);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --header-h: 84px;
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  line-height: 1.15;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.02em;
}
p { margin: 0 0 var(--space-3); color: var(--text-dim); }
input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
}
svg { display: block; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ============ Layout Helpers ============ */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: var(--space-8) 0; position: relative; }
.section-tight { padding: var(--space-7) 0; }
.section-head { max-width: 680px; margin: 0 0 var(--space-6); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(47, 125, 251, 0.08);
  color: #7fb4ff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.text-gradient {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  border: none;
  margin: 0;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
  min-height: 44px;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.25s ease; }
.btn:hover svg { transform: translateX(3px); }
.btn-primary {
  background: var(--brand-gradient);
  color: #04070f;
  box-shadow: 0 8px 30px rgba(47, 125, 251, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(47, 125, 251, 0.5); }
.btn-outline {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-outline:hover { border-color: var(--brand-2); background: rgba(34, 211, 238, 0.08); transform: translateY(-2px); }
.btn-light {
  background: #fff;
  color: #04070f;
}
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255,255,255,0.15); }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; min-height: 40px; }
.btn-block { width: 100%; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--brand-2);
  outline-offset: 3px;
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: border-color 0.35s ease, padding 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(4, 7, 15, 0.32);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background-color 0.35s ease, backdrop-filter 0.35s ease;
  pointer-events: none;
}
.site-header.scrolled {
  border-color: var(--border);
  padding: 12px 0;
}
.site-header.scrolled::before {
  background: rgba(4, 7, 15, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; }
.brand-logo { height: 52px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--brand-gradient);
  transition: width 0.25s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 20px; }
.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
}
.nav-toggle span {
  display: block;
  width: 20px; height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding-top: var(--space-7);
  position: relative;
  overflow: hidden;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-6);
  align-items: start;
}
.footer-brand p { max-width: 320px; margin-top: var(--space-3); }
.footer-nav { display: flex; flex-direction: column; gap: 14px; }
.footer-nav a { color: var(--text-dim); transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--brand-2); }
.footer-col-title { font-weight: 600; color: var(--text); margin-bottom: 4px; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-social, .social-row { display: flex; align-items: center; gap: 12px; }
.footer-social a, .social-row a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--text-dim);
  transition: all 0.25s ease;
}
.footer-social a:hover, .social-row a:hover { color: #04070f; background: var(--brand-gradient); border-color: transparent; transform: translateY(-3px); }
.footer-social svg, .social-row svg { width: 18px; height: 18px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 24px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============ Cards ============ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.35); }
.card-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--brand-gradient-soft);
  border: 1px solid var(--border-strong);
  color: var(--brand-2);
  margin-bottom: var(--space-4);
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

/* ============ Grids ============ */
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============ Hero (generic inner pages) ============ */
.page-hero {
  padding: calc(var(--header-h) + 56px) 0 64px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); align-items: center; }
.page-hero-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-glow);
}
.breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-2);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.breadcrumb-link svg { width: 16px; height: 16px; }

/* ============ Stat Row ============ */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.stat-item { display: flex; align-items: center; gap: 12px; }
.stat-item .icon-badge {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(47, 125, 251, 0.1);
  border: 1px solid var(--border-strong);
  color: var(--brand-2);
  flex-shrink: 0;
}
.icon-badge svg { width: 20px; height: 20px; }
.stat-item .num { font-family: "Space Grotesk", sans-serif; font-size: 1.5rem; font-weight: 700; color: var(--text); display: block; }
.stat-item .label { font-size: 0.85rem; color: var(--text-muted); }

/* ============ Reveal Animation Base ============ */
[data-reveal] { opacity: 0; }

/* ============ Utility ============ */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.pill-tabs { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-tab {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.9rem;
  background: transparent;
  transition: all 0.25s ease;
}
.pill-tab.active, .pill-tab:hover { background: var(--brand-gradient); color: #04070f; border-color: transparent; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(47, 125, 251, 0.12);
  color: #7fb4ff;
  border: 1px solid var(--border-strong);
}

/* ============ Responsive ============ */
@media (max-width: 1023px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .page-hero-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .main-nav { position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0; background: rgba(4,7,15,0.98); backdrop-filter: blur(20px); flex-direction: column; justify-content: flex-start; align-items: flex-start; padding: 40px 28px; gap: 8px; transform: translateX(100%); transition: transform 0.35s ease; overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { width: 100%; padding: 14px 0; font-size: 1.15rem; border-bottom: 1px solid var(--border); }
  .header-actions .status-pill { display: none; }
  .nav-toggle { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .section { padding: var(--space-7) 0; }
  h1 { font-size: 2.1rem !important; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .header-actions .btn-sm span.label { display: none; }
}