:root {
  --bg: #0c0c0e;
  --bg-2: #141417;
  --bg-3: #1c1c21;
  --fg: #f4f4f5;
  --fg-2: #a1a1aa;
  --fg-3: #52525b;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --border: rgba(255,255,255,0.07);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

/* — Nav — */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 60px;
  display: flex;
  align-items: center;
  background: rgba(12,12,14,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tag {
  font-size: 0.75rem;
  color: var(--fg-3);
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  letter-spacing: 0.03em;
}

/* — Hero — */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 40%, transparent 100%);
}
.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(245,158,11,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 880px;
  text-align: center;
}
.hero-label {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  margin-bottom: 24px;
  padding: 6px 16px;
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 24px;
  background: var(--accent-dim);
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}
.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--fg-2);
  max-width: 600px;
  margin: 0 auto 56px;
  line-height: 1.65;
}
.hero-stat-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-2);
  overflow: hidden;
  flex-wrap: wrap;
}
.hero-stat {
  padding: 24px 36px;
  text-align: center;
  flex: 1;
  min-width: 160px;
}
.hero-stat-val {
  display: block;
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.hero-stat-label {
  font-size: 0.78rem;
  color: var(--fg-3);
  line-height: 1.4;
}
.hero-stat-sep {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}

/* — Ops — */
.ops {
  padding: 100px 40px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ops-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.ops-header {
  margin-bottom: 60px;
}
.ops-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  margin-bottom: 12px;
}
.ops-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.ops-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
}
.ops-step {
  flex: 1;
  min-width: 200px;
  padding: 28px 32px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.ops-step-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 16px;
}
.ops-step h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.ops-step p {
  font-size: 0.88rem;
  color: var(--fg-2);
  line-height: 1.55;
}
.ops-arrow {
  display: flex;
  align-items: center;
  padding: 0 20px;
  color: var(--fg-3);
  flex-shrink: 0;
  align-self: center;
}

/* — Features — */
.features {
  padding: 100px 40px;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  margin-bottom: 56px;
}
.features-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  margin-bottom: 12px;
}
.features-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 540px;
  line-height: 1.2;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feature-card {
  padding: 36px 32px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  transition: background 0.2s;
}
.feature-card:hover {
  background: var(--bg-3);
}
.feature-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.feature-card p {
  font-size: 0.88rem;
  color: var(--fg-2);
  line-height: 1.6;
}

/* — Differentiator — */
.diff {
  padding: 100px 40px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.diff-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.diff-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 600;
  margin-bottom: 16px;
}
.diff-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 24px;
}
.diff-body {
  font-size: 0.95rem;
  color: var(--fg-2);
  line-height: 1.7;
  margin-bottom: 16px;
}
.diff-proof {
  display: flex;
  gap: 32px;
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.diff-proof-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.diff-proof-val {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.diff-proof-label {
  font-size: 0.78rem;
  color: var(--fg-3);
  line-height: 1.4;
  max-width: 120px;
}
.diff-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.diff-tower {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 240px;
  width: 100%;
  max-width: 260px;
}
.diff-floor {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  height: 100%;
}
.diff-floor-label {
  font-size: 0.7rem;
  color: var(--fg-3);
  text-align: center;
  letter-spacing: 0.03em;
  writing-mode: horizontal-tb;
}
.diff-bar {
  width: 100%;
  background: var(--bg-3);
  border-radius: 4px 4px 0 0;
  border: 1px solid var(--border);
  transition: all 0.3s;
  min-height: 20px;
}
.diff-bar-active { background: rgba(245,158,11,0.2); border-color: rgba(245,158,11,0.3); }
.diff-bar-final { background: var(--accent); border-color: var(--accent); }
.diff-floor-highlight .diff-floor-label { color: var(--accent); font-weight: 600; }
.diff-chart-label {
  font-size: 0.78rem;
  color: var(--fg-3);
  text-align: center;
}

/* — Closing — */
.closing {
  padding: 120px 40px;
  text-align: center;
}
.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}
.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.closing-body {
  font-size: 1.05rem;
  color: var(--fg-2);
  line-height: 1.7;
  margin-bottom: 20px;
}
.closing-tagline {
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: var(--fg-3);
  letter-spacing: 0.04em;
}

/* — Footer — */
.footer {
  padding: 32px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-3);
}

/* — Responsive — */
@media (max-width: 768px) {
  .nav { padding: 0 20px; }
  .hero { padding: 100px 20px 60px; }
  .hero-stat-row { flex-direction: column; }
  .hero-stat-sep { width: 80%; height: 1px; }
  .ops-arrow { display: none; }
  .ops-flow { gap: 12px; flex-direction: column; }
  .ops-step { padding: 20px; }
  .features { padding: 60px 20px; }
  .diff-grid { grid-template-columns: 1fr; gap: 40px; }
  .diff-visual { order: -1; }
  .closing { padding: 80px 20px; }
  .diff-proof { gap: 20px; }
  .footer { padding: 24px 20px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }