:root {
  --bg: #0C0C0E;
  --bg-elevated: #161619;
  --bg-card: #1C1C20;
  --fg: #E8E6E1;
  --fg-muted: #9A9890;
  --accent: #E8913A;
  --accent-glow: rgba(232, 145, 58, 0.15);
  --accent-light: #F2B06A;
  --border: #2A2A2E;
  --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);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .hero-badge, .section-tag, .footer-brand {
  font-family: var(--font-display);
}

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

/* ======================== HERO ======================== */

.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 10% 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 6px 16px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-sub {
  max-width: 560px;
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  gap: 20px;
  margin-top: 56px;
}

.stat-block {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 28px 36px;
  flex: 1;
  max-width: 240px;
}

.stat-block.highlight {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--bg-elevated), var(--accent-glow));
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-block.highlight .stat-number {
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 6px;
}

/* ======================== PROBLEM ======================== */

.problem {
  padding: 120px 10%;
  border-top: 1px solid var(--border);
}

.section-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 20px;
}

.problem h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  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-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 36px 32px;
  transition: border-color 0.3s;
}

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

.problem-icon {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ======================== HOW ======================== */

.how {
  padding: 120px 10%;
  background: var(--bg-elevated);
}

.how h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 36px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.step:first-child {
  border-top: 1px solid var(--border);
}

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  min-width: 60px;
  opacity: 0.4;
}

.step-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 16px;
  color: var(--fg-muted);
  max-width: 520px;
}

/* ======================== PROOF ======================== */

.proof {
  padding: 120px 10%;
  border-top: 1px solid var(--border);
}

.proof h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 60px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.proof-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
}

.proof-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.3s;
}

.proof-item:hover::before {
  opacity: 1;
}

.proof-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.proof-item p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ======================== CLOSING ======================== */

.closing {
  padding: 140px 10%;
  text-align: center;
  background: var(--bg-elevated);
}

.closing-line {
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 0 auto 48px;
}

.closing h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.015em;
  max-width: 680px;
  margin: 0 auto 24px;
}

.closing-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ======================== FOOTER ======================== */

.site-footer {
  padding: 48px 10%;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.footer-note {
  font-size: 14px;
  color: var(--fg-muted);
}

/* ======================== RESPONSIVE ======================== */

@media (max-width: 768px) {
  .hero {
    padding: 60px 6% 48px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

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

  .stat-block {
    max-width: 100%;
  }

  .problem,
  .how,
  .proof,
  .closing {
    padding: 80px 6%;
  }

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

  .proof-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .step-num {
    font-size: 2rem;
  }

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

  .closing h2 {
    font-size: 1.5rem;
  }
}