:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6e3;
  --fg-muted: #8a8793;
  --fg-dim: #5c5966;
  --accent: #6c5ce7;
  --accent-soft: rgba(108, 92, 231, 0.15);
  --accent-glow: rgba(108, 92, 231, 0.3);
  --green: #00d2a0;
  --green-soft: rgba(0, 210, 160, 0.12);
  --orange: #f59e0b;
  --orange-soft: rgba(245, 158, 11, 0.12);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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;
  overflow-x: hidden;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  color: var(--accent);
  font-size: 22px;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.nav-tag {
  color: var(--fg-muted);
  font-size: 14px;
}

/* ---- HERO ---- */
.hero {
  padding: 180px 32px 100px;
  text-align: center;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-block;
  padding: 8px 18px;
  background: var(--accent-soft);
  border: 1px solid rgba(108, 92, 231, 0.25);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  text-transform: uppercase;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 580px;
  margin: 0 auto 48px;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--green);
}
.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ---- PROBLEM ---- */
.problem {
  padding: 100px 32px;
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.problem-label,
.features-label,
.how-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}
.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 48px;
  max-width: 600px;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.2s;
}
.problem-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}
.problem-num {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-dim);
  margin-bottom: 16px;
}
.problem-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ---- FEATURES ---- */
.features {
  padding: 100px 32px;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.feature-blocks {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  transition: border-color 0.2s;
}
.feature-block:hover {
  border-color: rgba(255, 255, 255, 0.12);
}
.feature-large {
  padding: 48px;
}
.feature-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--green-soft);
  color: var(--green);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.feature-block h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.feature-block p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.7;
  max-width: 640px;
}
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ---- HOW IT WORKS ---- */
.how {
  padding: 100px 32px;
  background: var(--bg-elevated);
}
.how-inner {
  max-width: 800px;
  margin: 0 auto;
}
.how-steps {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}
.how-step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 24px 0;
}
.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border: 1px solid rgba(108, 92, 231, 0.3);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}
.step-content h4 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.step-content p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
}
.how-connector {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--accent-glow), transparent);
  margin-left: 23px;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 32px;
  text-align: center;
}
.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 24px;
}
.closing-sub {
  color: var(--fg-muted);
  font-size: 17px;
  line-height: 1.7;
}

/* ---- FOOTER ---- */
.footer {
  padding: 40px 32px;
  border-top: 1px solid var(--border);
}
.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;
}
.footer-tagline {
  color: var(--fg-dim);
  font-size: 14px;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
  .feature-row {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  .stat-divider {
    width: 48px;
    height: 1px;
  }
  .nav-tag {
    display: none;
  }
  .hero {
    padding: 140px 20px 80px;
  }
  .problem, .features, .how, .closing {
    padding: 72px 20px;
  }
  .feature-large, .feature-block {
    padding: 28px;
  }
  .closing h2 br {
    display: none;
  }
}