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

:root {
  --bg: #0D1117;
  --surface: #161B22;
  --surface2: #21262D;
  --border: #30363D;
  --fg: #E6EDF3;
  --fg-muted: #8B949E;
  --primary: #3B82F6;
  --accent: #F59E0B;
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Outfit', sans-serif;
}

html { scroll-behavior: smooth; }

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

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--fg);
}

.nav-logo {
  color: var(--accent);
  font-size: 1.2rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 48px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: -100px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-bars {
  position: absolute;
  bottom: 0;
  right: 0;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 80px 48px;
  opacity: 0.15;
}

.bar {
  width: 6px;
  background: var(--primary);
  border-radius: 3px;
  animation: equalize 1.4s ease-in-out infinite;
}
.bar:nth-child(1)  { height: 40px; animation-delay: 0s; }
.bar:nth-child(2)  { height: 80px; animation-delay: 0.2s; }
.bar:nth-child(3)  { height: 60px; animation-delay: 0.1s; }
.bar:nth-child(4)  { height: 100px; animation-delay: 0.3s; }
.bar:nth-child(5)  { height: 50px; animation-delay: 0.4s; }
.bar:nth-child(6)  { height: 90px; animation-delay: 0.15s; }
.bar:nth-child(7)  { height: 70px; animation-delay: 0.25s; }
.bar:nth-child(8)  { height: 110px; animation-delay: 0.05s; }
.bar:nth-child(9)  { height: 45px; animation-delay: 0.35s; }
.bar:nth-child(10) { height: 85px; animation-delay: 0.2s; }
.bar:nth-child(11) { height: 65px; animation-delay: 0.1s; }
.bar:nth-child(12) { height: 95px; animation-delay: 0.3s; }

@keyframes equalize {
  0%, 100% { transform: scaleY(1); }
  50%       { transform: scaleY(0.5); }
}

.hero-content {
  position: relative;
  max-width: 760px;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}

/* Features */
.features {
  padding: 100px 48px;
  border-top: 1px solid var(--border);
}

.features-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s;
}

.feature-card:hover { border-color: var(--primary); }

.feature-icon {
  width: 44px;
  height: 44px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.03em;
  color: var(--fg);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* Equipment */
.equipment {
  padding: 100px 48px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.equipment-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.gear-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.gear-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 110px;
  position: relative;
}

.gear-box::after {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border-radius: 12px;
  border: 1px solid var(--fg-muted);
  opacity: 0.3;
}

.gear-box--available {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.05);
}

.gear-box--available::after { display: none; }

.gear-icon { font-size: 1.5rem; color: var(--accent); }
.gear-box span { font-weight: 600; font-size: 0.875rem; }
.gear-box small { font-size: 0.75rem; color: var(--fg-muted); }
.gear-box--available small { color: #22C55E; }

.equipment-text h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.equipment-text p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* How It Works */
.howitworks { padding: 100px 48px; }
.howitworks-inner { max-width: 1100px; margin: 0 auto; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.step { position: relative; }

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--primary);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.03em;
  color: var(--fg);
  margin-bottom: 10px;
}

.step p { color: var(--fg-muted); font-size: 0.9375rem; line-height: 1.65; }

/* Closing */
.closing {
  padding: 120px 48px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(59, 130, 246, 0.05) 100%);
}

.closing-inner { max-width: 640px; margin: 0 auto; }

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin-bottom: 24px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.0625rem;
  line-height: 1.7;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

.footer-logo { color: var(--accent); }
.footer-tagline { color: var(--fg-muted); font-size: 0.875rem; }

/* Responsive */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 100px 24px 60px; }
  .features { padding: 60px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .equipment { padding: 60px 24px; }
  .equipment-inner { grid-template-columns: 1fr; gap: 40px; }
  .howitworks { padding: 60px 24px; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .closing { padding: 80px 24px; }
  footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}