:root {
  --bg: #0d0d0d;
  --fg: #f5f5f5;
  --muted: #888;
  --accent: #f0c040;
  --card: #181818;
  --card-border: #2a2a2a;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

* { 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 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  border-bottom: 1px solid var(--card-border);
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.nav-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* HERO */
.hero {
  padding: 120px 48px 80px;
  max-width: 860px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-headline {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  color: var(--fg);
}

.hero-sub {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: 48px;
}

.hero-path {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.path-step {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 6px 14px;
  border-radius: 4px;
}

.path-bold {
  color: var(--fg);
  border-color: var(--accent);
}

.path-arrow {
  color: var(--muted);
  font-size: 14px;
}

/* MISSION */
.mission {
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  padding: 80px 48px;
}

.mission-inner {
  max-width: 760px;
}

.mission-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.mission-text {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.mission-text em {
  font-style: italic;
  color: var(--accent);
}

.mission-detail {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 560px;
}

/* FEATURES */
.features {
  padding: 80px 48px;
}

.features-header {
  margin-bottom: 48px;
}

.features-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.features-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 32px;
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  padding: 100px 48px;
  background: linear-gradient(135deg, #0d0d0d 0%, #141410 100%);
  border-top: 1px solid var(--card-border);
}

.closing-inner {
  max-width: 680px;
}

.closing-headline {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 18px;
  color: var(--muted);
}

/* FOOTER */
.footer {
  padding: 48px;
  border-top: 1px solid var(--card-border);
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #555;
}

/* MOBILE */
@media (max-width: 640px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 80px 24px 60px; }
  .mission { padding: 60px 24px; }
  .features { padding: 60px 24px; }
  .closing { padding: 80px 24px; }
  .footer { padding: 40px 24px; }
  .features-grid { grid-template-columns: 1fr; }
}