:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}

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

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.site-header nav a {
  margin-left: 24px;
  color: var(--color-text);
  font-weight: 500;
}

.site-header nav a:hover {
  color: var(--color-primary);
}

/* Hero */
.hero {
  text-align: center;
  padding: 96px 0 72px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

.coming-soon-badge {
  display: inline-block;
  background: #eef2ff;
  color: var(--color-primary-dark);
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.95rem;
}

/* Features */
.features {
  padding: 80px 0;
}

.features h2,
.privacy h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Privacy */
.privacy {
  background: var(--color-bg-alt);
  padding: 72px 0;
  text-align: center;
}

.privacy p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--color-border);
}

.footer-inner p {
  margin: 4px 0;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .site-header nav a {
    margin-left: 14px;
    font-size: 0.9rem;
  }
}