:root {
  --bg: #0a0a0c;
  --bg-elevated: #111115;
  --bg-card: #16161b;
  --fg: #e8e6e3;
  --fg-muted: #8a8a8f;
  --accent: #f97316;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --accent-subtle: rgba(249, 115, 22, 0.08);
  --border: rgba(255, 255, 255, 0.06);
  --font-body: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-width: 1140px;
}

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

html { font-size: 16px; 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;
}

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

/* ====== HERO ====== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid rgba(249, 115, 22, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  max-width: 200px;
}

/* ====== PROBLEM ====== */
.problem {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
}

.problem-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.problem-left h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.problem-stat {
  font-size: 1.1rem;
  color: var(--fg);
  margin-bottom: 16px;
  line-height: 1.7;
}

.problem-right p:last-child {
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ====== HOW IT WORKS ====== */
.how {
  padding: 120px 40px;
  background: var(--bg-elevated);
}

.how-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

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

.step-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  padding-top: 4px;
}

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

.step-content p {
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* ====== FEATURES ====== */
.features {
  padding: 120px 40px;
}

.features-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
}

.feature-card-wide {
  grid-column: 1 / -1;
}

.feature-icon {
  font-size: 1.2rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

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

/* ====== CLOSING ====== */
.closing {
  padding: 140px 40px;
  text-align: center;
  background: var(--bg-elevated);
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

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

.signup-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 32px auto 0;
  flex-wrap: wrap;
  justify-content: center;
}

.signup-form input[type="email"] {
  flex: 1;
  min-width: 220px;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.signup-form input[type="email"]:focus {
  border-color: var(--accent);
}

.signup-form button {
  padding: 12px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.signup-form button:hover {
  opacity: 0.85;
}

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

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

.footer-brand {
  font-weight: 600;
  font-size: 1rem;
}

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

/* ====== MOBILE ====== */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 100px 24px 60px;
  }

  .hero-stats {
    gap: 32px;
  }

  .problem-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .problem, .how, .features, .closing {
    padding: 80px 24px;
  }

  .step {
    grid-template-columns: 48px 1fr;
    gap: 16px;
    padding: 28px 0;
  }

  .features-inner {
    grid-template-columns: 1fr;
  }

  .feature-card-wide {
    grid-column: 1;
  }

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