/* version: v0.1.2 */
:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --text: #20242c;
  --muted: #646b78;
  --line: #dfe3ea;
  --accent: #2865b3;
  --accent-dark: #1f4f8c;
  --footer: #eef1f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.container {
  width: min(100% - 32px, 960px);
  margin: 0 auto;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 28px 0 24px;
}

.site-logo {
  display: inline-block;
  color: var(--text);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.site-lead {
  max-width: 680px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.top-nav a {
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fafc;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.section {
  margin: 36px 0;
}

.page-content {
  padding-bottom: 32px;
}

h1,
h2 {
  margin: 0 0 14px;
  line-height: 1.35;
  letter-spacing: 0;
}

h1 {
  font-size: 1.7rem;
}

h2 {
  font-size: 1.2rem;
}

p {
  margin: 0;
  color: var(--muted);
}

.text-section p + p {
  margin-top: 14px;
}

.app-grid {
  display: grid;
  gap: 16px;
}

.app-card,
.text-section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.app-card {
  display: flex;
  min-height: 360px;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}

.app-card-body {
  display: grid;
  gap: 12px;
}

.app-meta {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
}

.app-meta div {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.app-meta dt {
  margin-bottom: 3px;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
}

.app-meta dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-dark);
}

.button:active {
  transform: translateY(1px);
}

.info-section {
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

.plain-list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--muted);
}

.plain-list li + li {
  margin-top: 6px;
}

.policy-links {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.policy-links a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.policy-links a:hover,
.policy-links a:focus-visible {
  border-color: var(--accent);
  text-decoration: underline;
}

.ad-placeholder {
  display: flex;
  min-height: 96px;
  align-items: center;
  justify-content: center;
  margin: 72px 0 36px;
  border: 1px dashed #aeb6c3;
  border-radius: 8px;
  background: #fdfefe;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-box {
  max-width: 680px;
}

.future-contact {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.site-footer {
  margin-top: 24px;
  padding: 30px 16px;
  background: var(--footer);
  color: var(--muted);
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  margin-bottom: 12px;
}

.footer-nav a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

.site-footer p {
  font-size: 0.85rem;
}

@media (min-width: 720px) {
  .site-header {
    padding: 40px 0 34px;
  }

  .section {
    margin: 48px 0;
  }

  h1 {
    font-size: 2rem;
  }

  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .policy-links {
    grid-template-columns: repeat(3, 1fr);
  }
}