:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.25);
  --warning: #ff6b4a;
  --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);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* HERO */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 6% 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.4;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #fff;
  max-width: 700px;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  gap: 16px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  min-width: 180px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  backdrop-filter: blur(8px);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.stat-trend {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
}

/* PROBLEM */
.problem {
  padding: 100px 6%;
  border-top: 1px solid var(--border);
}

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

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 52px;
  max-width: 640px;
}

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

.problem-item {
  padding: 0;
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.problem-item p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* FEATURES */
.features {
  padding: 100px 6%;
  border-top: 1px solid var(--border);
}

.features-header {
  margin-bottom: 52px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  color: #fff;
  max-width: 560px;
}

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

.feature-block {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
  border-color: rgba(0, 212, 170, 0.15);
}

.feature-tag {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-block h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.35;
}

.feature-block p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* METRICS */
.metrics {
  padding: 80px 6%;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.metrics-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.metric {
  text-align: center;
}

.metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.metric-label {
  display: block;
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 6px;
}

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

/* CLOSING */
.closing {
  padding: 120px 6%;
  text-align: center;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.35;
  color: #fff;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* FOOTER */
.site-footer {
  padding: 40px 6%;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 60px 5% 40px;
  }

  .hero-visual {
    flex-direction: column;
  }

  .stat-card {
    min-width: 100%;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-large {
    grid-column: 1;
  }

  .metrics-inner {
    flex-direction: column;
    gap: 32px;
  }

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

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

  .closing {
    padding: 80px 5%;
  }

  .problem, .features {
    padding: 60px 5%;
  }
}