:root {
  --bg: #0A0A0A;
  --bg-2: #111111;
  --bg-3: #1A1A1A;
  --fg: #F2F2F2;
  --fg-muted: #888888;
  --accent: #B8FF00;
  --accent-dim: #8BBF00;
  --border: #222222;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.nav {
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.5px;
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 0.5px;
}

/* ── HERO ── */
.hero {
  padding: 96px 48px 72px;
  max-width: 960px;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-headline .accent { color: var(--accent); }
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 48px;
}
.hero-proof {
  display: flex;
  align-items: center;
  gap: 32px;
}
.proof-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.proof-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}
.proof-label {
  font-size: 12px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.proof-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── PROOF BAR ── */
.proof-bar {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 48px;
}
.proof-bar-inner {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: 960px;
}
.proof-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 40px 0 0;
}
.proof-stat:first-child { padding-left: 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
}
.stat-desc {
  font-size: 12px;
  color: var(--fg-muted);
}
.proof-div {
  width: 1px;
  height: 36px;
  background: var(--border);
  margin: 0 40px 0 0;
}

/* ── SECTION TITLE ── */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--fg);
  margin-bottom: 48px;
}

/* ── HOW IT WORKS ── */
.how {
  padding: 80px 48px;
  max-width: 960px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.step {
  padding: 32px 28px 32px 0;
  border-right: 1px solid var(--border);
  padding-right: 28px;
}
.step:last-child { border-right: none; }
.step-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
}
.step-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.step-body {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── PLATFORMS ── */
.platforms {
  padding: 80px 48px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.plat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.plat-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 32px;
  position: relative;
}
.plat-card--featured {
  border-color: var(--accent-dim);
}
.plat-icon {
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  margin-bottom: 20px;
}
.plat-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 10px;
}
.plat-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.plat-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 4px 10px;
  border-radius: 2px;
}

/* ── SPRINT TIMELINE ── */
.sprint {
  padding: 80px 48px;
  max-width: 960px;
}
.sprint-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.sprint-week {
  padding: 28px 24px 28px 0;
  border-right: 1px solid var(--border);
  padding-right: 24px;
}
.sprint-week:last-child { border-right: none; }
.sprint-week--final .week-label { color: var(--accent); }
.week-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 8px;
}
.week-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 16px;
}
.week-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.week-list li {
  font-size: 13px;
  color: var(--fg-muted);
  padding-left: 16px;
  position: relative;
}
.week-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* ── CLOSING ── */
.closing {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 96px 48px;
}
.closing-inner {
  max-width: 720px;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.15;
  color: var(--fg);
  margin-bottom: 20px;
}
.closing-sub {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 48px;
}
.footer-inner {
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
}
.footer-tag {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav, .hero, .how, .sprint, .closing, .footer { padding-left: 24px; padding-right: 24px; }
  .proof-bar { padding: 24px; }
  .platforms { padding: 64px 24px; }
  .steps, .sprint-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .step { border-right: none; padding-right: 0; border-bottom: 1px solid var(--border); padding-bottom: 24px; }
  .step:last-child, .step:nth-last-child(-n+2) { border-bottom: none; }
  .plat-grid { grid-template-columns: 1fr; }
  .proof-bar-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .proof-div { display: none; }
  .hero-proof { gap: 20px; }
}

@media (max-width: 480px) {
  .steps, .sprint-grid { grid-template-columns: 1fr; }
  .hero-headline { letter-spacing: -1px; }
}