/* ============================================================
   ENOCH ELAINE — Global Stylesheet
   ============================================================ */

/* ─── CSS Variables ─────────────────────────────────────── */
:root {
  --bg: #0d1829;
  --bg2: #122035;
  --bg3: #172840;
  --glass: rgba(255,255,255,0.055);
  --glass-hover: rgba(255,255,255,0.09);
  --glass-border: rgba(255,255,255,0.1);
  --glass-border-accent: rgba(99,150,255,0.3);
  --accent: #5b8fff;
  --accent2: #8b5cf6;
  --accent-glow: rgba(91,143,255,0.22);
  --text: #f0f4ff;
  --text-sub: #9aadc8;
  --text-muted: #5a6e8a;
  --nav-h: 68px;
  --radius: 14px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.35), 0 1px 0 rgba(255,255,255,0.07) inset;
  --max-w: 1200px;
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
               'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei',
               system-ui, sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(91,143,255,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 80%, rgba(139,92,246,0.05) 0%, transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ─── Particle Canvas ───────────────────────────────────── */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

/* ─── Layout Helpers ────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}
.section { padding: 100px 0; }
.section-sm { padding: 60px 0; }

/* ─── Navigation ─────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}
nav.scrolled {
  background: rgba(11,18,36,0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom-color: var(--glass-border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-logo {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--glass); }
.nav-link .chevron {
  width: 14px; height: 14px;
  transition: transform var(--transition);
  opacity: 0.6;
}
.nav-item:hover .chevron { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown {
  position: absolute;
  /* Start right at 100% with padding-top bridging the gap so hover never breaks */
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: rgba(11,18,38,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 14px 8px 8px; /* 14px top padding acts as invisible bridge */
  min-width: 290px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
  /* Extend hover area upward so cursor can pass from link to dropdown */
  margin-top: 0;
}
/* Invisible pseudo-element fills the gap between link and dropdown */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0; right: 0;
  height: 14px;
}
.nav-item:hover .nav-dropdown,
.nav-item.dropdown-open .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 10px 16px;
  font-size: 0.85rem;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-dropdown a:hover { color: var(--text); background: var(--glass); }
.nav-dropdown-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 16px 4px;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.nav-toggle:hover { background: var(--glass); }
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-sub);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.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); }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(11,18,38,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 16px 24px 24px;
  z-index: 999;
  max-height: calc(100vh - var(--nav-h));
  overflow-y: auto;
}
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block;
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--glass-border);
  transition: color var(--transition), background var(--transition);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--text); background: var(--glass); }
.nav-mobile .mobile-sub {
  padding-left: 28px;
  font-size: 0.83rem;
  color: var(--text-muted);
}
.nav-mobile .mobile-sub:hover { color: var(--text-sub); }
.nav-mobile .mobile-section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 14px 16px 4px;
}

/* ─── Hero / Page Header ─────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-h) + 20px);
  position: relative;
  overflow: hidden;
}
.hero-sm {
  min-height: 60vh;
  padding-top: calc(var(--nav-h) + 40px);
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Gradient orbs */
.hero::before, .hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}
.hero::before {
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(91,143,255,0.15) 0%, transparent 70%);
  top: -150px; left: -150px;
}
.hero::after {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  bottom: -100px; right: -150px;
}

/* ─── Typography ─────────────────────────────────────────── */
.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.label::before {
  content: '';
  display: block;
  width: 20px; height: 1px;
  background: var(--accent);
  opacity: 0.6;
}
h1, .h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}
h2, .h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}
h3, .h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}
h4, .h4 { font-size: 1rem; font-weight: 600; color: var(--text); }
.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lead {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-sub);
  line-height: 1.75;
  max-width: 680px;
}
.body-text {
  font-size: 0.93rem;
  color: var(--text-sub);
  line-height: 1.75;
}
.mono {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--accent);
}

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 24px rgba(91,143,255,0.3);
}
.btn-primary:hover {
  background: #7aa8ff;
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(91,143,255,0.45);
}
.btn-outline {
  border: 1px solid var(--glass-border-accent);
  color: var(--accent);
  background: rgba(91,143,255,0.05);
}
.btn-outline:hover {
  background: rgba(91,143,255,0.12);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  color: var(--text-sub);
  padding: 12px 0;
  gap: 6px;
}
.btn-ghost:hover { color: var(--text); }
.btn-ghost .arrow {
  transition: transform var(--transition);
}
.btn-ghost:hover .arrow { transform: translateX(4px); }

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.card:hover {
  background: var(--glass-hover);
  border-color: var(--glass-border-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(99,130,255,0.1);
}
.card-sm {
  padding: 24px;
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(91,143,255,0.1);
  border: 1px solid rgba(91,143,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.card-icon svg { width: 22px; height: 22px; color: var(--accent); }
.card-tag {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  display: block;
}
.card-title { margin-bottom: 12px; }
.card-body { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  transition: gap var(--transition);
}
.card-link:hover { gap: 10px; }

/* Grid layouts */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* ─── Section Divider ────────────────────────────────────── */
.section-header { margin-bottom: 60px; }
.section-header.centered { text-align: center; }
.section-header.centered .label { justify-content: center; }
.section-header.centered .lead { margin: 16px auto 0; }
.section-header .lead { margin-top: 16px; }

/* ─── Intro 3-col ─────────────────────────────────────────── */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--glass-border);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.intro-col {
  background: var(--bg2);
  padding: 40px 32px;
  transition: background var(--transition);
  backdrop-filter: blur(8px);
}
.intro-col:hover { background: var(--bg3); }
.intro-col-num {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.1em;
}
.intro-col h3 { margin-bottom: 12px; }

/* ─── Scale Diagram ──────────────────────────────────────── */
.diagram-wrap {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 48px 40px;
  overflow: hidden;
  position: relative;
}
.diagram-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(91,143,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.diagram-axis {
  position: relative;
  width: 100%;
  height: 420px;
}
.axis-label {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-sub);
  letter-spacing: 0.05em;
}
.axis-label-x, .axis-label-y {
  position: absolute;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.axis-label-x { bottom: 0; right: 0; }
.axis-label-y { top: 0; left: 0; transform: rotate(-90deg) translateX(-100%); transform-origin: top left; }

/* ─── Tech Cards (gateway) ───────────────────────────────── */
.tech-gateway-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
  cursor: pointer;
}
.tech-gateway-card:hover {
  background: var(--glass-hover);
  border-color: var(--glass-border-accent);
  transform: translateY(-6px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 0 1px rgba(91,143,255,0.15);
}
.tgc-num {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}
.tgc-title { font-size: 1.25rem; font-weight: 700; }
.tgc-desc { font-size: 0.9rem; color: var(--text-sub); line-height: 1.65; flex: 1; }
.tgc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 8px;
  transition: gap var(--transition);
}
.tgc-link:hover { gap: 10px; }

/* ─── Section Anchor ────────────────────────────────────── */
.section-anchor { scroll-margin-top: calc(var(--nav-h) + 20px); }

/* ─── Feature List ──────────────────────────────────────── */
.feature-list { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.6;
}
.feature-item::before {
  content: '•';
  color: var(--accent);
  font-size: 1.2rem;
  line-height: 1.3;
  flex-shrink: 0;
}

/* Key focus grid */
.key-focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.key-focus-item {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 24px 20px;
}
.kfi-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.kfi-body { font-size: 0.85rem; color: var(--text-sub); line-height: 1.65; }

/* ─── Separator ─────────────────────────────────────────── */
.sep {
  border: none;
  border-top: 1px solid var(--glass-border);
  margin: 0;
}

/* ─── Contact Form ──────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.83rem; font-weight: 500; color: var(--text-sub); }
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--accent);
  background: var(--glass-hover);
  box-shadow: 0 0 0 3px rgba(91,143,255,0.12);
}
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 140px; }
select.form-control { appearance: none; cursor: pointer; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ─── Email Table ──────────────────────────────────────── */
.email-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.email-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--glass-border);
}
.email-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--glass-border);
  color: var(--text-sub);
}
.email-table td:last-child { color: var(--accent); font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace; font-size: 0.83rem; }
.email-table tr:last-child td { border-bottom: none; }
.email-table tr:hover td { color: var(--text); background: var(--glass); }

/* ─── Map placeholder ──────────────────────────────────── */
.map-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: var(--bg2);
  aspect-ratio: 16/7;
}
.map-svg { width: 100%; height: 100%; opacity: 0.6; }
.map-dot {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  transform: translate(-50%, -50%);
}
.map-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.2;
  animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 0.2; }
  50% { transform: scale(2); opacity: 0; }
}
.map-label {
  position: absolute;
  font-size: 0.72rem;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  color: var(--accent);
  white-space: nowrap;
  transform: translateX(-50%);
  top: calc(100% + 6px);
}

/* ─── Scroll Animations ─────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible { opacity: 1; transform: none; }

/* ─── Code bg decoration ─────────────────────────────────── */
.code-bg-text {
  position: absolute;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  color: rgba(91,143,255,0.06);
  line-height: 1.8;
  pointer-events: none;
  user-select: none;
  white-space: pre;
  z-index: 0;
}

/* ─── Inline accent line ─────────────────────────────────── */
.accent-line {
  display: block;
  width: 48px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  margin-bottom: 24px;
}

/* ─── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.badge-blue {
  background: rgba(91,143,255,0.12);
  color: var(--accent);
  border: 1px solid rgba(91,143,255,0.2);
}

/* ─── Innovation subsection ──────────────────────────────── */
.inno-section { margin-top: 48px; }
.inno-section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.inno-section-sub {
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}
.inno-bullet-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 48px 0 32px;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-sub);
}
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a {
  font-size: 0.83rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-sub); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 24px;
  text-align: center;
}

/* ─── Page-specific: CHEM ───────────────────────────────── */
.chem-category {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--glass-border);
}
.chem-category:last-child { border-bottom: none; }
.chem-product-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 16px 0;
}
.chem-product-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-sub);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--glass);
  border: 1px solid var(--glass-border);
}
.chem-product-item::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ─── Hero CTA group ─────────────────────────────────────── */
.cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* ─── Stat row ───────────────────────────────────────────── */
.stat-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--glass-border);
}
.stat-item {}
.stat-val {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.83rem; color: var(--text-muted); margin-top: 2px; }

/* ─── Page entry animation (CSS-only, zero JS overhead) ─── */
body {
  animation: page-fade-in 0.22s ease forwards;
}
@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Hero visual panel ──────────────────────────────────── */
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-visual {
  position: relative;
}
.hero-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04) inset;
  animation: float-card 5s ease-in-out infinite;
}
@keyframes float-card {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-10px); }
}
.hero-card-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--glass-border);
  font-size: 0.85rem;
}
.hero-card-row:last-child { border-bottom: none; }
.hero-card-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-green  { background: #22c55e; box-shadow: 0 0 8px #22c55e; }
.dot-blue   { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.dot-purple { background: var(--accent2); box-shadow: 0 0 8px var(--accent2); }
.dot-amber  { background: #f59e0b; box-shadow: 0 0 8px #f59e0b; }
.hero-card-label { color: var(--text-sub); flex: 1; }
.hero-card-value {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--text);
}
.hero-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}
.hero-card-header .hch-title {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.hero-card-header .hch-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  color: #22c55e;
}
.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px #22c55e;
  animation: blink-status 2s ease infinite;
}
@keyframes blink-status {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
/* Floating badge cards behind the main hero card */
.hero-badge {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  backdrop-filter: blur(12px);
  font-size: 0.78rem;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.hero-badge-1 {
  bottom: -16px; left: -20px;
  animation: float-badge1 6s ease-in-out infinite;
}
.hero-badge-2 {
  top: -12px; right: -16px;
  animation: float-badge2 7s ease-in-out infinite 1s;
}
@keyframes float-badge1 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(4px, -8px); }
}
@keyframes float-badge2 {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(-4px, 6px); }
}
.badge-label { color: var(--text-muted); font-size: 0.68rem; display: block; }
.badge-value { color: var(--text); font-weight: 600; }

/* ─── Section glow bg ─────────────────────────────────────── */
.section-glow {
  position: relative;
}
.section-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(91,143,255,0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Horizontal feature ticker ─────────────────────────── */
.ticker-wrap {
  overflow: hidden;
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  padding: 14px 0;
  background: rgba(91,143,255,0.03);
  position: relative;
  z-index: 1;
}
.ticker-track {
  display: flex;
  gap: 0;
  animation: ticker-scroll 30s linear infinite;
  width: max-content;
}
.ticker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 32px;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  white-space: nowrap;
  border-right: 1px solid var(--glass-border);
}
.ticker-item .t-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─── Visual block / graphic card ───────────────────────── */
.graphic-block {
  background: linear-gradient(135deg, rgba(91,143,255,0.08) 0%, rgba(139,92,246,0.06) 100%);
  border: 1px solid rgba(91,143,255,0.18);
  border-radius: var(--radius);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
}
.graphic-block::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91,143,255,0.12) 0%, transparent 70%);
  top: -100px; right: -100px;
  pointer-events: none;
}
.graphic-block::after {
  content: '';
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
  bottom: -60px; left: -60px;
  pointer-events: none;
}

/* ─── Two-col utility ───────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.two-col-start { align-items: start; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .intro-grid { grid-template-columns: 1fr; gap: 0; }
  .key-focus-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .container { padding: 0 20px; }
  .section { padding: 70px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .key-focus-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .hero-layout { grid-template-columns: 1fr; gap: 48px; }
  .hero-badge { display: none; }
  .ticker-wrap { display: none; }
  .stat-row { gap: 28px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero::before, .hero::after { display: none; }
  .diagram-axis { height: 280px; }
}

@media (max-width: 480px) {
  .section-header .lead { font-size: 0.95rem; }
  .card { padding: 24px 20px; }
  .tech-gateway-card { padding: 28px 22px; }
}