:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --bg-card: #18182a;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --fg-subtle: #5a5a72;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108, 92, 231, 0.15);
  --warm: #fd79a8;
  --gradient-start: #6c5ce7;
  --gradient-end: #00cec9;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 16px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* ─── Hero ─── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
  background: 
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(108, 92, 231, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 20%, rgba(0, 206, 201, 0.06) 0%, transparent 60%),
    var(--bg);
}

.hero-inner {
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-light);
  background: var(--accent-glow);
  border: 1px solid rgba(108, 92, 231, 0.2);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

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

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* ─── Problem ─── */
.problem {
  padding: 100px 24px;
  background: var(--bg-subtle);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 56px;
  text-align: center;
  letter-spacing: -0.02em;
}

.strike {
  text-decoration: line-through;
  color: var(--fg-subtle);
  opacity: 0.5;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

.problem-icon {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--warm);
  margin-bottom: 16px;
}

.problem-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── Features ─── */
.features {
  padding: 100px 24px;
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.features-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.features h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

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

.feature-card:hover {
  border-color: rgba(108, 92, 231, 0.3);
}

.feature-primary {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(0, 206, 201, 0.04));
  border-color: rgba(108, 92, 231, 0.15);
  grid-column: 1;
}

.feature-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent-light);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── How ─── */
.how {
  padding: 100px 24px;
  background: var(--bg-subtle);
}

.how-inner {
  max-width: 700px;
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 56px;
  text-align: center;
  letter-spacing: -0.02em;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.how-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 48px;
  line-height: 1;
}

.step-content h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── Closing ─── */
.closing {
  padding: 120px 24px;
  text-align: center;
  position: relative;
  background: 
    radial-gradient(ellipse 50% 40% at 50% 100%, rgba(108, 92, 231, 0.08) 0%, transparent 70%),
    var(--bg);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 32px;
}

.closing-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Footer ─── */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-note {
  font-size: 0.85rem;
  color: var(--fg-subtle);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    gap: 20px;
  }
  
  .stat-divider {
    display: none;
  }
  
  .how-step {
    flex-direction: column;
    gap: 12px;
  }
  
  .step-num {
    min-width: auto;
  }
}

@media (min-width: 769px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .feature-primary {
    grid-column: 1 / -1;
  }
}