:root {
  --bg: #FAFAF8;
  --bg-alt: #F2F2ED;
  --fg: #18181B;
  --fg-muted: #6B6B6B;
  --accent: #E8FF5A;
  --accent-dark: #D4E54A;
  --surface: #FFFFFF;
  --border: rgba(24, 24, 27, 0.08);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
}
.nav-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--fg-muted);
  background: var(--bg-alt);
  padding: 6px 14px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

/* Hero */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 32px 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  letter-spacing: 0.01em;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  color: var(--fg);
}
.hero-highlight {
  background: linear-gradient(135deg, #18181B 0%, #3D3D3D 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-lede {
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.55;
  margin-bottom: 56px;
  font-weight: 400;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 400;
  max-width: 140px;
  line-height: 1.4;
}
.hero-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Problem */
.problem {
  background: var(--fg);
  color: #fff;
}
.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 32px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}
.problem-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #888;
  padding-top: 8px;
}
.problem-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.problem-title em {
  font-style: normal;
  color: var(--accent);
}
.problem-body {
  font-size: 17px;
  color: #AAAAAA;
  line-height: 1.65;
  max-width: 560px;
}

/* Features */
.features {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 32px;
}
.features-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 48px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.feature-card {
  background: var(--bg);
  padding: 40px;
  transition: background 0.2s ease;
}
.feature-card:hover {
  background: var(--surface);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fg);
}
.feature-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Closing */
.closing {
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.closing-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 32px;
  text-align: center;
}
.closing-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 24px;
}
.closing-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
  color: var(--fg);
}
.closing-body {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.closing-note {
  font-size: 14px;
  color: var(--fg-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  display: inline-block;
  padding: 12px 20px;
  border-radius: 8px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--fg);
}
.footer-copy {
  font-size: 13px;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-inner { padding: 14px 20px; }
  .hero { padding: 60px 20px 56px; }
  .hero-meta { gap: 24px; }
  .hero-divider { display: none; }
  .stat-value { font-size: 28px; }
  .problem-inner { grid-template-columns: 1fr; gap: 24px; padding: 56px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 28px; }
  .closing-inner { padding: 64px 20px; }
  .footer-inner { padding: 20px; flex-direction: column; gap: 8px; text-align: center; }
}