:root {
  --bg: #0a0a0c;
  --bg-elevated: #111115;
  --bg-card: #16161a;
  --fg: #e8e6e3;
  --fg-dim: #8a8a8e;
  --accent: #00e68a;
  --accent-dim: rgba(0, 230, 138, 0.12);
  --accent-glow: rgba(0, 230, 138, 0.25);
  --gold: #ffd700;
  --border: rgba(255,255,255,0.06);
  --mono: 'DM Mono', monospace;
  --sans: 'Space Grotesk', system-ui, sans-serif;
}

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

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

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 4rem 2rem;
  overflow: hidden;
}

.hero-grid {
  max-width: 800px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 .accent {
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-dim);
  max-width: 560px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1.5rem 2.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: fit-content;
  margin: 0 auto;
}

.stat { text-align: center; }

.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--mono);
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(100px);
  z-index: 1;
  pointer-events: none;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 6rem 2rem;
  background: var(--bg);
}

.problem-inner {
  max-width: 900px;
  margin: 0 auto;
}

.problem-tag, .features-tag, .proof-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem 1.5rem;
}

.problem-icon {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1rem;
  font-weight: 500;
}

.problem-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--fg-dim);
  line-height: 1.6;
}

/* ===== FEATURES ===== */
.features {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
}

.features-inner {
  max-width: 900px;
  margin: 0 auto;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-top: 3.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--border);
}

.feature-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-num {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.feature-text h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.feature-text p {
  font-size: 0.95rem;
  color: var(--fg-dim);
  line-height: 1.7;
}

.feature-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--fg);
  width: 100%;
}

.code-dim { color: var(--fg-dim); }

.seo-meter {
  width: 100%;
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.meter-bar {
  height: 8px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.meter-fill {
  height: 100%;
  width: 94%;
  background: linear-gradient(90deg, var(--accent), #00cc7a);
  border-radius: 4px;
}

.meter-label {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
}

.mini-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 100%;
}

.chart-bar {
  flex: 1;
  background: var(--accent-dim);
  border-radius: 4px 4px 0 0;
  transition: background 0.3s;
}

.chart-bar.highlight {
  background: var(--accent);
}

/* ===== PROOF ===== */
.proof {
  padding: 6rem 2rem;
  background: var(--bg);
}

.proof-inner {
  max-width: 800px;
  margin: 0 auto;
}

.proof h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.proof-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
}

.proof-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
}

.proof-col.after {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(0,230,138,0.04), var(--bg-card));
}

.proof-header {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 1.25rem;
}

.proof-col.after .proof-header {
  color: var(--accent);
}

.proof-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.proof-col li {
  font-size: 0.95rem;
  color: var(--fg-dim);
  padding-left: 1rem;
  position: relative;
}

.proof-col li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--fg-dim);
}

.proof-col.after li {
  color: var(--fg);
}

.proof-col.after li::before {
  background: var(--accent);
}

.proof-arrow {
  font-size: 1.5rem;
  color: var(--accent);
  text-align: center;
}

/* ===== CLOSING ===== */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background: var(--bg-elevated);
  position: relative;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

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

/* ===== FOOTER ===== */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    direction: ltr;
  }
  
  .proof-comparison {
    grid-template-columns: 1fr;
  }
  
  .proof-arrow {
    transform: rotate(90deg);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
  }
  
  .stat-divider {
    width: 40px;
    height: 1px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}