:root {
  --bg: #0a0a0f;
  --bg-subtle: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --fg-dim: #5a5a6a;
  --accent: #00d4aa;
  --accent-2: #6366f1;
  --accent-3: #f59e0b;
  --accent-4: #ec4899;
  --gradient: linear-gradient(135deg, #00d4aa 0%, #6366f1 50%, #ec4899 100%);
  --border: #1e1e2a;
  --radius: 12px;
  --max-w: 1100px;
}

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

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

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

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding: 6px 14px;
  border: 1px solid rgba(0, 212, 170, 0.25);
  border-radius: 100px;
}

/* Hero */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 100px 24px 80px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.2);
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 620px;
  margin-bottom: 3.5rem;
}

.hero-visual { margin-top: 1rem; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}

.stat-card.highlight {
  border-color: rgba(0, 212, 170, 0.35);
  background: linear-gradient(145deg, rgba(0, 212, 170, 0.06), var(--bg-card));
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 6px;
}

.stat-card.highlight .stat-number { color: var(--accent); }

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

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

.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 3.5rem;
  letter-spacing: -0.02em;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.problem-item {
  padding: 32px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.problem-icon {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--fg-dim);
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
}

.problem-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

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

/* Features */
.features {
  padding: 100px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.features h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 3.5rem;
  letter-spacing: -0.02em;
}

.feature-blocks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
}

.feature-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
}

.feature-accent.accent-2 { background: var(--accent-2); }
.feature-accent.accent-3 { background: var(--accent-3); }
.feature-accent.accent-4 { background: var(--accent-4); }

.feature-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

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

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

.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 3.5rem;
  letter-spacing: -0.02em;
}

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

.how-step {
  flex: 1;
  padding: 32px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.step-connector {
  width: 40px;
  min-width: 40px;
  height: 2px;
  background: var(--border);
  align-self: center;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
}

.step-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 24px;
  text-align: center;
}

.closing-inner {
  max-width: 780px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

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

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
}

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

/* Responsive */
@media (max-width: 768px) {
  .stat-grid { grid-template-columns: 1fr; gap: 12px; }
  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-blocks { grid-template-columns: 1fr; }
  .how-steps { flex-direction: column; gap: 16px; }
  .step-connector { width: 2px; height: 24px; min-width: unset; align-self: center; }
  .hero { padding: 60px 20px 50px; }
  .problem, .how { padding: 60px 20px; }
  .features { padding: 60px 20px; }
  .closing { padding: 80px 20px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .stat-number { font-size: 1.8rem; }
}