:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6e3;
  --fg-muted: #8a8a97;
  --accent: #c4f53a;
  --accent-dim: rgba(196, 245, 58, 0.12);
  --accent-glow: rgba(196, 245, 58, 0.06);
  --warn: #f5a623;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.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: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

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

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

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

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

.problem-label,
.features-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin-bottom: 56px;
}

.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;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(196, 245, 58, 0.2);
}

.problem-number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ========== FEATURES ========== */
.features {
  padding: 100px 24px;
}

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

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

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

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

.feature-tag {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 12px;
}

.feature-text h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-text p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
}

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

.feature-mock {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 400px;
}

.mock-bar {
  height: 8px;
  width: 40%;
  background: var(--accent);
  border-radius: 4px;
  margin-bottom: 20px;
}

.mock-line {
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  margin-bottom: 12px;
}

.mock-line.w80 { width: 80%; }
.mock-line.w60 { width: 60%; }
.mock-line.w90 { width: 90%; }
.mock-line.w70 { width: 70%; }

.mock-block {
  height: 48px;
  background: var(--accent-dim);
  border-radius: 8px;
  margin: 16px 0;
}

/* Score mock */
.score-mock {
  display: flex;
  gap: 24px;
  align-items: center;
}

.score-ring {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 4px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.score-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.score-factors {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.score-factor {
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 500;
}

.score-factor.good {
  background: rgba(196, 245, 58, 0.1);
  color: var(--accent);
}

.score-factor.warn {
  background: rgba(245, 166, 35, 0.1);
  color: var(--warn);
}

/* SOW mock */
.sow-mock {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sow-header {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 4px;
}

.sow-item {
  font-size: 0.9rem;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sow-check {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
}

/* ========== PROOF ========== */
.proof {
  padding: 80px 24px;
  background: var(--bg-elevated);
}

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

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

.proof-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.proof-desc {
  color: var(--fg-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

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

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.closing-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 40px;
}

.closing-built {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 100px;
}

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

.built-name {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
  font-size: 0.9rem;
}

/* ========== 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: 600;
  font-size: 1rem;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 24px;
  }

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

  .proof-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

  .score-mock {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}