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

:root {
  --bg-primary: #0B0F1A;
  --bg-secondary: #111827;
  --bg-tertiary: #0F1A2B;
  --accent: #3B82F6;
  --accent-bright: #22D3EE;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-dim: #64748B;
  --border: #1E293B;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}
.nav-tag {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-left: 1px solid var(--border);
  padding-left: 20px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-image {
  position: absolute;
  inset: 0;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.35) saturate(0.6);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,15,26,0.9) 0%, rgba(11,15,26,0.3) 60%, rgba(11,15,26,0.7) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 140px 32px 80px;
  width: 100%;
}
.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 16px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(80px, 15vw, 180px);
  line-height: 0.9;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 40px);
  color: var(--accent-bright);
  letter-spacing: 0.05em;
  line-height: 1.2;
  margin-bottom: 32px;
}
.hero-body {
  font-size: 18px;
  font-weight: 300;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* Sections */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 32px;
}
.section-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  display: inline-block;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 20px;
}
.section-body {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.75;
  margin-bottom: 56px;
}

/* Capabilities */
.what-it-does { background: var(--bg-primary); }
.capabilities {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
}
.cap {}
.cap-icon {
  margin-bottom: 16px;
}
.cap h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.cap p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Dimensions */
.dimensions { background: var(--bg-secondary); }
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
}
.dim {
  padding: 40px 32px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.dim:last-child, .dim:nth-child(4n) { border-right: none; }
.dim-number {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--accent-bright);
  opacity: 0.4;
  margin-bottom: 16px;
}
.dim h3 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.dim p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Process */
.process { background: var(--bg-primary); }
.process-steps {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  flex: 1;
  min-width: 200px;
}
.step-marker { flex-shrink: 0; }
.step-body h4 {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.step-connector {
  width: 40px;
  height: 2px;
  background: var(--accent-bright);
  opacity: 0.4;
  flex-shrink: 0;
  align-self: center;
}

/* Difference */
.difference { background: var(--bg-secondary); }
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}
.diff-old, .diff-new {
  padding: 48px 40px;
}
.diff-old {
  border-right: 1px solid var(--border);
  background: rgba(11,15,26,0.5);
}
.diff-header {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.diff-new .diff-header { color: var(--accent-bright); }
.diff-list { display: flex; flex-direction: column; gap: 16px; }
.diff-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
}
.diff-item .diff-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}
.diff-old .diff-item .diff-icon { color: #EF4444; }
.diff-new .diff-item .diff-icon { color: var(--accent-bright); }

/* Closing */
.closing { background: var(--bg-primary); }
.closing-content {
  max-width: 800px;
}
.closing-statement {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 52px);
  color: var(--text-primary);
  line-height: 1.3;
  text-align: center;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}
.footer-tag {
  font-size: 13px;
  color: var(--text-dim);
  font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-inner { padding: 14px 20px; }
  .hero-content { padding: 120px 20px 60px; }
  .section-inner { padding: 60px 20px; }
  .diff-grid { grid-template-columns: 1fr; }
  .diff-old { border-right: none; border-bottom: 1px solid var(--border); }
  .footer-inner { flex-direction: column; text-align: center; }
  .process-steps { flex-direction: column; gap: 24px; }
  .step-connector { width: 2px; height: 24px; }
}