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

:root {
  --bg: #fafafa;
  --text: #1a1a1a;
  --text-secondary: #555;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --card-bg: #fff;
  --card-border: #e5e7eb;
  --footer-bg: #f3f4f6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Nav */
nav {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--card-border);
  background: var(--card-bg);
}

nav .nav-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

nav .logo:hover {
  color: var(--text);
  text-decoration: none;
}

nav .nav-links {
  display: flex;
  gap: 1.5rem;
}

nav .nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

nav .nav-links a:hover {
  color: var(--text);
}

/* Main content */
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem;
  flex: 1;
  width: 100%;
}

/* Hero */
.hero {
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 540px;
}

/* App card */
.app-card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  background: var(--card-bg);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: box-shadow 0.2s;
}

.app-card:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  text-decoration: none;
}

.app-icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-icon span {
  font-size: 2rem;
  color: #fff;
}

.app-info h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.app-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.app-badge {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--accent);
}

/* Section headers */
.section-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Policy / text pages */
.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.content h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.content ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

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

/* Support page */
.contact-card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  background: var(--card-bg);
  margin-bottom: 1.5rem;
}

.contact-card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--card-border);
  background: var(--footer-bg);
  padding: 1.5rem 2rem;
}

footer .footer-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

footer .footer-links {
  display: flex;
  gap: 1.25rem;
}

footer .footer-links a {
  color: var(--text-secondary);
}

footer .footer-links a:hover {
  color: var(--text);
}

/* Responsive */
@media (max-width: 600px) {
  nav {
    padding: 1rem 1.25rem;
  }

  main {
    padding: 2rem 1.25rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .app-card {
    flex-direction: column;
    align-items: flex-start;
  }

  footer .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}