/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #1a1a2e;
  --accent: #4f8ef7;
  --accent-light: #e8f0fe;
  --bg: #f8f9fc;
  --surface: #ffffff;
  --border: #e4e7ef;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --radius: 12px;
  --shadow: 0 2px 16px rgba(0,0,0,0.07);
  --max-width: 860px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

/* ===== Header / Hero ===== */
header {
  background: var(--primary);
  color: #fff;
  padding: 56px 24px 48px;
  text-align: center;
}

header .site-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

header .site-subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  font-weight: 400;
}

/* ===== Nav ===== */
nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

nav ul li a {
  display: block;
  padding: 14px 18px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
  white-space: nowrap;
}

nav ul li a:hover {
  color: var(--accent);
}

/* ===== Main Layout ===== */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* ===== Section ===== */
section {
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}

h2.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--primary);
}

p {
  color: #374151;
  margin-bottom: 14px;
}

ul, ol {
  padding-left: 22px;
  margin-bottom: 14px;
}

ul li, ol li {
  color: #374151;
  margin-bottom: 6px;
}

/* ===== App Cards ===== */
.app-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 8px;
}

@media (max-width: 640px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.app-card .app-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
}

.app-card .app-icon img {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: block;
  object-fit: cover;
  box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

.app-card .app-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary);
}

.app-card .app-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ===== Policy Card ===== */
.policy-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

@media (max-width: 640px) {
  .policy-card {
    padding: 24px 18px;
  }
}

.policy-card .effective-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* ===== Support Card ===== */
.support-card {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 32px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

@media (max-width: 640px) {
  .support-card {
    flex-direction: column;
    gap: 16px;
    padding: 28px 20px;
  }
}

.support-card .support-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.support-card h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.support-card p {
  color: rgba(255,255,255,0.75);
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.support-card .email-link {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  padding: 9px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  margin-top: 4px;
  transition: background 0.2s;
  cursor: default;
  pointer-events: none;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 28px 24px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.82rem;
}

footer p + p {
  margin-top: 4px;
}

/* ===== Highlight Box ===== */
.info-box {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  margin: 16px 0;
  font-size: 0.9rem;
  color: #374151;
}