:root {
  --bg: #07070d;
  --bg-raised: #0e0e18;
  --bg-card: #12121f;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --fg-dim: #5a5a6e;
  --accent: #00e5c8;
  --accent-glow: rgba(0, 229, 200, 0.12);
  --accent-strong: #00ffdf;
  --warn: #ff6b4a;
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(0, 229, 200, 0.2);
  --radius: 12px;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 20px;
}

.accent { color: var(--accent); }

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 120px 24px 100px;
  max-width: 1120px;
  margin: 0 auto;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 540px;
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color 0.3s;
}

.stat-card:hover {
  border-color: var(--border-accent);
}

.stat-card.highlight {
  border-color: var(--border-accent);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 229, 200, 0.04) 100%);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 229, 200, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.problem h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
  max-width: 700px;
}

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

.problem-item {
  padding: 32px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.2s, border-color 0.3s;
}

.problem-item:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 107, 74, 0.3);
}

.problem-icon {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--warn);
  background: rgba(255, 107, 74, 0.1);
  border: 1px solid rgba(255, 107, 74, 0.2);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  margin-bottom: 20px;
}

.problem-item h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
}

.problem-item p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ===== HOW ===== */
.how {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.how h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

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

.how-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color 0.3s;
  display: flex;
  flex-direction: column;
}

.how-card:hover {
  border-color: var(--border-accent);
}

.how-number {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  margin-bottom: 24px;
}

.how-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.how-card p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
  flex-grow: 1;
}

.how-tag {
  margin-top: 20px;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 6px 14px;
  border-radius: 100px;
  display: inline-block;
  width: fit-content;
  border: 1px solid var(--border-accent);
}

/* ===== RESULTS ===== */
.results {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.results h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

.results-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 64px;
}

.results-before, .results-after {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.results-after {
  border-color: var(--border-accent);
  background: linear-gradient(160deg, var(--bg-raised) 0%, rgba(0, 229, 200, 0.03) 100%);
}

.results-header {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
  margin-bottom: 24px;
}

.results-header.accent {
  color: var(--accent);
}

.results-before ul, .results-after ul {
  list-style: none;
}

.results-before li, .results-after li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  padding-left: 20px;
  position: relative;
}

.results-before li:last-child, .results-after li:last-child {
  border-bottom: none;
}

.results-before li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--warn);
  border-radius: 50%;
  opacity: 0.7;
}

.results-after li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

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

.result-metric {
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 24px;
}

.metric-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.metric-desc {
  font-size: 0.88rem;
  color: var(--fg-muted);
}

/* ===== CLOSING ===== */
.closing {
  position: relative;
  padding: 140px 0;
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.closing-block {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

.closing-glow {
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0, 229, 200, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

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

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 0.82rem;
  color: var(--fg-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
  .hero {
    padding: 80px 24px 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat-card {
    flex: 1;
    min-width: 180px;
  }

  .problem-grid,
  .how-grid,
  .results-bottom {
    grid-template-columns: 1fr;
  }

  .results-comparison {
    grid-template-columns: 1fr;
  }

  .problem, .how, .results, .closing {
    padding: 80px 0;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 60px 16px 48px;
  }

  .section-inner {
    padding: 0 16px;
  }

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

  .stat-card {
    min-width: unset;
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .metric-value {
    font-size: 1.8rem;
  }
}