:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8b8b9e;
  --accent: #00e5a0;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-2: #6c5ce7;
  --gradient: linear-gradient(135deg, #00e5a0 0%, #6c5ce7 50%, #00b4d8 100%);
  --gradient-text: linear-gradient(135deg, #00e5a0, #6c5ce7);
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

/* === NAV === */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  position: relative;
  z-index: 10;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  font-size: 24px;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 40px 80px;
  max-width: 900px;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  width: fit-content;
  margin-bottom: 32px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 6.5vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 620px;
}
.hero-glow {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, rgba(108, 92, 231, 0.05) 40%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

/* === STATS === */
.stats {
  padding: 40px 40px 80px;
  border-top: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 28px 24px;
  text-align: center;
  transition: border-color 0.3s;
}
.stat-card:hover {
  border-color: rgba(0, 229, 160, 0.2);
}
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* === FEATURES === */
.features {
  padding: 100px 40px;
}
.features-header {
  max-width: 600px;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 20px;
}
.features-header h2,
.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1100px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  transition: transform 0.3s, border-color 0.3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 160, 0.15);
}
.feature-large {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 229, 160, 0.03) 100%);
}
.feature-icon {
  font-size: 32px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.feature-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* === HOW === */
.how {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}
.how-header {
  max-width: 650px;
  margin-bottom: 60px;
}
.how-steps {
  max-width: 700px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 32px 0;
}
.step-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.3;
  min-width: 80px;
  line-height: 1;
}
.step-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}
.step-content p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.7;
}
.step-line {
  width: 80px;
  height: 1px;
  background: var(--border);
  margin-left: 36px;
}

/* === CLOSING === */
.closing {
  padding: 120px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.08) 0%, rgba(0, 229, 160, 0.04) 50%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.closing-content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
}
.closing-highlight {
  display: inline-flex;
  padding: 12px 28px;
  background: var(--accent-glow);
  border: 1px solid rgba(0, 229, 160, 0.2);
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* === FOOTER === */
.footer {
  padding: 60px 40px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-tagline {
  color: var(--fg-muted);
  font-size: 14px;
  margin-bottom: 32px;
}
.footer-bottom {
  font-size: 13px;
  color: var(--fg-muted);
  opacity: 0.6;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero-content { padding: 0 24px 60px; }
  .stats { padding: 32px 24px 60px; }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-number { font-size: 28px; }
  .stat-label { font-size: 12px; }
  .features { padding: 60px 24px; }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .feature-large { grid-column: span 1; }
  .feature-card { padding: 28px; }
  .how { padding: 60px 24px; }
  .step { flex-direction: column; gap: 12px; }
  .step-number { font-size: 36px; min-width: auto; }
  .step-line { display: none; }
  .closing { padding: 80px 24px; }
  .footer { padding: 40px 24px 32px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card { padding: 20px 16px; }
  .feature-card h3 { font-size: 19px; }
  .closing h2 { font-size: 26px; }
}