:root {
  --bg: #050810;
  --bg-2: #080d1a;
  --fg: #e8eaf0;
  --fg-2: #8891a8;
  --accent: #00F0FF;
  --accent-dim: rgba(0, 240, 255, 0.12);
  --accent-border: rgba(0, 240, 255, 0.25);
  --purple: #8B5CF6;
  --purple-dim: rgba(139, 92, 246, 0.12);
  --font-head: 'Syne', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-head);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0 60px;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,240,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 0 48px;
  flex: 1;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}

.eyebrow-text {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.9;
}

.hero-headline {
  font-size: clamp(64px, 9vw, 120px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  color: var(--fg);
}

.headline-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg-2);
  max-width: 560px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 32px;
}

.stat:first-child { padding-left: 0; }

.stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
}

.stat-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(0,240,255,0.15);
}

/* Hero Visual */
.hero-visual {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 45%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.datascope {
  position: relative;
  width: 380px;
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.datascope-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,240,255,0.12);
}

.ring-1 { width: 380px; height: 380px; animation: ring-pulse 4s ease-in-out infinite; }
.ring-2 { width: 280px; height: 280px; animation: ring-pulse 4s ease-in-out infinite 0.5s; border-color: rgba(0,240,255,0.2); }
.ring-3 { width: 180px; height: 180px; animation: ring-pulse 4s ease-in-out infinite 1s; border-color: rgba(0,240,255,0.3); }

@keyframes ring-pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.03); }
}

.datascope-core {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.datascope-node {
  position: absolute;
  width: auto;
  padding: 6px 12px;
  background: rgba(0,240,255,0.08);
  border: 1px solid rgba(0,240,255,0.2);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.node-label { white-space: nowrap; }

.node-1 { top: 5%; left: 50%; transform: translateX(-50%); }
.node-2 { top: 50%; right: 5%; transform: translateY(-50%); }
.node-3 { bottom: 5%; left: 50%; transform: translateX(-50%); }
.node-4 { top: 50%; left: 5%; transform: translateY(-50%); }

/* ---- Alert ---- */
.alert-section {
  background: var(--accent-dim);
  border-top: 1px solid var(--accent-border);
  border-bottom: 1px solid var(--accent-border);
  padding: 20px 48px;
}

.alert-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
}

.alert-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,240,255,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(0,240,255,0); }
}

.alert-text {
  font-size: 15px;
  color: var(--fg-2);
}

/* ---- Features ---- */
.features {
  padding: 120px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--fg-2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-2);
  border: 1px solid rgba(0,240,255,0.08);
  border-radius: 12px;
  padding: 36px 32px;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(0,240,255,0.25);
}

.feature-icon {
  margin-bottom: 24px;
  opacity: 0.9;
}

.feature-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-2);
  margin-bottom: 24px;
}

.feature-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 4px;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ---- Architecture ---- */
.architecture {
  background: var(--bg-2);
  border-top: 1px solid rgba(0,240,255,0.06);
  border-bottom: 1px solid rgba(0,240,255,0.06);
  padding: 100px 48px;
}

.arch-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.arch-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.arch-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 14px;
  background: var(--purple-dim);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 20px;
  color: #a78bfa;
  letter-spacing: 0.04em;
}

.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.layer {
  background: rgba(0,240,255,0.04);
  border: 1px solid rgba(0,240,255,0.12);
  border-radius: 8px;
  overflow: hidden;
}

.layer-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 8px 16px;
  background: rgba(0,240,255,0.06);
  border-bottom: 1px solid rgba(0,240,255,0.1);
}

.layer-block {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg);
  padding: 14px 16px;
  line-height: 1.5;
}

.layer-arrow {
  display: flex;
  justify-content: center;
  padding: 4px 0;
}

/* ---- Scale ---- */
.scale-section {
  padding: 80px 48px;
  border-bottom: 1px solid rgba(0,240,255,0.06);
}

.scale-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.scale-stats {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
}

.scale-stat {
  flex: 1;
  text-align: center;
  padding: 0 32px;
}

.scale-stat:first-child { padding-left: 0; }
.scale-stat:last-child { padding-right: 0; }

.scale-number {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 500;
  background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.scale-label {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.scale-sub {
  font-size: 13px;
  color: var(--fg-2);
}

.scale-divider {
  width: 1px;
  height: 60px;
  background: rgba(0,240,255,0.1);
}

/* ---- Closing ---- */
.closing-section {
  padding: 120px 48px;
  text-align: center;
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}

.closing-headline {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 0%, var(--fg-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-2);
  max-width: 600px;
  margin: 0 auto 64px;
}

.closing-mark {
  display: flex;
  justify-content: center;
  opacity: 0.6;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid rgba(0,240,255,0.06);
  padding: 40px 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.footer-sep {
  color: var(--fg-2);
  opacity: 0.4;
}

.footer-tagline {
  font-size: 13px;
  color: var(--fg-2);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-2);
  opacity: 0.5;
  letter-spacing: 0.05em;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero { flex-direction: column; padding: 100px 24px 60px; min-height: auto; }
  .hero-inner { padding: 0; }
  .hero-visual { position: relative; width: 100%; height: 300px; margin-top: 40px; }
  .datascope { width: 280px; height: 280px; }
  .ring-1 { width: 280px; height: 280px; }
  .ring-2 { width: 200px; height: 200px; }
  .ring-3 { width: 130px; height: 130px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .arch-inner { grid-template-columns: 1fr; gap: 48px; }
  .scale-stats { flex-direction: column; gap: 40px; }
  .scale-divider { width: 60px; height: 1px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .stat { padding: 0; }
  .stat-divider { display: none; }
  .alert-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .features, .architecture, .closing-section { padding: 80px 24px; }
  .site-footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 52px; }
  .scale-number { font-size: 36px; }
  .footer-brand { flex-direction: column; gap: 4px; }
}