:root {
  --bg: #0a0a0c;
  --bg-elevated: #141418;
  --bg-card: #1a1a20;
  --fg: #e8e6e3;
  --fg-muted: #8a8690;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --red: #ef4444;
  --red-muted: rgba(239, 68, 68, 0.12);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1120px;
}

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

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 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

/* HERO */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 100px 24px 80px;
  text-align: left;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-glow);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid rgba(245, 158, 11, 0.25);
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin-bottom: 28px;
  max-width: 800px;
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

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

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* PROBLEM */
.problem {
  background: var(--bg-elevated);
  padding: 96px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.problem-text h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 24px;
}

.problem-text p {
  color: var(--fg-muted);
  margin-bottom: 16px;
  max-width: 480px;
}

.inbox-sim {
  background: var(--bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.inbox-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  border-radius: 10px;
  background: var(--red-muted);
  border-left: 3px solid var(--red);
}

.inbox-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  margin-top: 6px;
  flex-shrink: 0;
}

.inbox-item strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.inbox-time {
  font-size: 0.8rem;
  color: var(--red);
  font-weight: 500;
}

/* FEATURES */
.features {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px;
}

.features-header {
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}

.features-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 520px;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(245, 158, 11, 0.04) 100%);
  border-color: rgba(245, 158, 11, 0.15);
}

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

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* HOW IT WORKS */
.how {
  background: var(--bg-elevated);
  padding: 96px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how h2 {
  max-width: var(--max-w);
  margin: 0 auto 56px;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
}

.steps {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.step:last-child { border-bottom: none; }

.step-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  flex-shrink: 0;
  width: 80px;
}

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

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

/* CLOSING */
.closing {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 120px 24px;
  text-align: center;
}

.closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 24px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

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

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { padding: 72px 20px 56px; }
  .problem-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-large { grid-column: 1; }
  .hero-stats { gap: 24px; }
  .stat-divider { display: none; }
  .step { flex-direction: column; gap: 12px; }
  .step-num { font-size: 2rem; width: auto; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .closing { padding: 80px 20px; }
}