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

:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #0071e3;
  --border: #d2d2d7;
  --card-bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --bg-secondary: #2c2c2e;
    --text: #f5f5f7;
    --text-secondary: #a1a1a6;
    --accent: #2997ff;
    --border: #424245;
    --card-bg: #2c2c2e;
  }
}

html {
  font-size: 16px;
}

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

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

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

a:hover {
  text-decoration: underline;
}

/* Navigation */
nav {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  flex-wrap: wrap;
  align-items: center;
}

nav .site-name {
  font-weight: 600;
  color: var(--text);
  margin-right: auto;
}

/* Hero / Landing */
.hero {
  text-align: center;
  padding: 3rem 0;
}

.hero .app-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px;
  margin: 0 auto 1.5rem;
  display: block;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 980px;
  font-size: 1rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.cta-button:hover {
  text-decoration: none;
  opacity: 0.85;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 3rem 0;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

@media (max-width: 500px) {
  .features {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2rem;
  }
}

/* Page headings */
h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p, ul, ol {
  margin-bottom: 1rem;
}

ul {
  padding-left: 1.25rem;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  margin-top: 0;
}

.faq-item p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Footer */
footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

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

footer a:hover {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

/* Contact section */
.contact {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 2rem;
  text-align: center;
}

.contact p {
  margin-bottom: 0.5rem;
}

/* Legal text */
.effective-date {
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}