:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e8ed;
  --fg-muted: #8b8b9e;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.25);
  --warning: #ff6b4a;
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, 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: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.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-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  border: 1px solid rgba(0, 212, 170, 0.2);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-visual {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-unit {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-top: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-top: 12px;
  line-height: 1.5;
}

/* === PROBLEM === */
.problem {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}

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

.problem-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 36px 28px;
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--warning);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 107, 74, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

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

/* === HOW === */
.how {
  padding: 100px 24px;
}

.how-headline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step {
  display: flex;
  gap: 32px;
  padding: 36px 32px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.04);
  align-items: flex-start;
  transition: border-color 0.2s;
}

.step:hover {
  border-color: var(--accent-glow);
}

.step-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255,255,255,0.08);
  min-width: 60px;
  line-height: 1;
  padding-top: 4px;
}

.step-content h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 12px;
}

.step-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 12px;
  border-radius: 100px;
}

/* === PROOF === */
.proof {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.comp-col {
  padding: 36px 32px;
  border-radius: var(--radius);
}

.comp-others {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
}

.comp-us {
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 170, 0.2);
}

.comp-col h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.comp-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.comp-others li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.comp-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

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

.comp-us li {
  color: var(--fg);
  font-size: 0.95rem;
  padding-left: 20px;
  position: relative;
}

.comp-us li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin: 0 auto 24px;
}

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

/* === FOOTER === */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 60px 20px 40px; min-height: auto; }
  .hero-visual { grid-template-columns: 1fr; gap: 12px; }
  .problem-grid { grid-template-columns: 1fr; }
  .comparison { grid-template-columns: 1fr; }
  .step { flex-direction: column; gap: 12px; padding: 24px 20px; }
  .step-num { min-width: auto; font-size: 1.4rem; }
  .problem, .how, .proof { padding: 60px 20px; }
  .closing { padding: 80px 20px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
  .stat-card { padding: 20px 18px; }
  .stat-number { font-size: 2.2rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .how-headline { font-size: 1.4rem; }
  .closing h2 { font-size: 1.6rem; }
}