:root {
  --bg: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-dim: #8888a0;
  --accent: #3bf08a;
  --accent-dim: rgba(59, 240, 138, 0.12);
  --accent-glow: rgba(59, 240, 138, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --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);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.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;
  gap: 60px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(59, 240, 138, 0.18);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

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

/* Terminal demo */
.hero-visual { width: 100%; }

.terminal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 14px;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
  color: var(--fg-dim);
  font-size: 12px;
  margin-left: 8px;
}

.terminal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.terminal-body .line {
  color: var(--fg-dim);
}

.terminal-body .line.success {
  color: var(--accent);
}

.prompt {
  color: var(--accent);
  margin-right: 6px;
}

.dim { opacity: 0.5; }

.check { font-weight: bold; }

/* ============ PROBLEM ============ */
.problem {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

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

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

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

.problem-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.problem-card p {
  color: var(--fg-dim);
  font-size: 1rem;
}

.problem-punchline {
  font-size: 1.2rem;
  color: var(--fg-dim);
  max-width: 680px;
}

.problem-punchline strong {
  color: var(--fg);
}

/* ============ HOW ============ */
.how {
  padding: 120px 24px;
}

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

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 64px;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  min-width: 80px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.step-content p {
  color: var(--fg-dim);
  max-width: 560px;
}

/* ============ FEATURES ============ */
.features {
  padding: 120px 24px;
  background: var(--bg-secondary);
}

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

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.feature h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

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

/* ============ CLOSING ============ */
.closing {
  padding: 140px 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;
  letter-spacing: -1px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg) 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing-sub {
  font-size: 1.15rem;
  color: var(--fg-dim);
  line-height: 1.75;
}

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

.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: 1.1rem;
}

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

.footer-sep {
  margin: 0 12px;
  opacity: 0.3;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero {
    padding: 60px 20px 40px;
    min-height: auto;
    gap: 40px;
  }

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

  .feature-row {
    grid-template-columns: 1fr;
  }

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

  .step-number {
    font-size: 2rem;
    min-width: auto;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .problem, .how, .features {
    padding: 80px 20px;
  }

  .closing {
    padding: 100px 20px;
  }
}

@media (min-width: 769px) {
  .hero {
    flex-direction: row;
    align-items: center;
  }

  .hero-inner {
    flex: 1;
  }

  .hero-visual {
    flex: 1;
  }
}