:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8b8b9e;
  --fg-dim: #55556a;
  --accent: #7c5cfc;
  --accent-glow: rgba(124, 92, 252, 0.3);
  --accent-soft: rgba(124, 92, 252, 0.08);
  --green: #34d399;
  --orange: #fb923c;
  --red: #f87171;
  --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; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  position: relative;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 92, 252, 0.12), transparent 70%);
}

.hero-inner {
  max-width: 820px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(124, 92, 252, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 7vw, 76px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: var(--fg-dim);
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== PROBLEM ===== */
.problem {
  padding: 120px 24px;
  background: var(--bg);
}

.problem-inner {
  max-width: 960px;
  margin: 0 auto;
}

.problem-label,
.features-label,
.how-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2,
.features h2,
.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: rgba(124, 92, 252, 0.25);
}

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

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* ===== FEATURES ===== */
.features {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

.features-inner {
  max-width: 800px;
  margin: 0 auto;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-row {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--fg-dim);
  min-width: 80px;
  line-height: 1;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.7;
}

/* ===== HOW ===== */
.how {
  padding: 120px 24px;
  background: var(--bg);
}

.how-inner {
  max-width: 800px;
  margin: 0 auto;
}

.how-steps {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 56px;
  position: relative;
}

.step-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  background: var(--accent-soft);
  border: 1px solid rgba(124, 92, 252, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--accent);
}

.step h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
}

.step p {
  color: var(--fg-muted);
  font-size: 16px;
  line-height: 1.65;
}

.step-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(124, 92, 252, 0.3), transparent);
  margin-left: 19px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 140px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(124, 92, 252, 0.15), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 18px;
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
}

.footer-note {
  font-size: 14px;
  color: var(--fg-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .feature-row {
    flex-direction: column;
    gap: 12px;
  }

  .feature-number {
    font-size: 36px;
    min-width: auto;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px 16px;
    min-height: 80vh;
  }

  .problem,
  .features,
  .how,
  .closing {
    padding: 80px 16px;
  }
}