:root {
  --color-text: #1a1a1a;
  --color-muted: #666;
  --color-bg: #ffffff;
  --color-surface: #f6f8fa;
  --color-border: #e1e4e8;
  --color-link: #0366d6;
  --color-link-hover: #0353b8;
  --max-width: 760px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #e6edf3;
    --color-muted: #8b949e;
    --color-bg: #0d1117;
    --color-surface: #161b22;
    --color-border: #30363d;
    --color-link: #58a6ff;
    --color-link-hover: #79c0ff;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans",
               "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--color-link);
  text-decoration: none;
}
a:hover { color: var(--color-link-hover); text-decoration: underline; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  background: var(--color-bg);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.site-title {
  font-weight: 600;
  font-size: 18px;
  color: var(--color-text);
}
.site-nav { display: flex; gap: 12px; font-size: 14px; }
.lang-switch { color: var(--color-muted); }
.lang-switch.active { color: var(--color-text); font-weight: 600; }

/* Main */
main.container { padding-top: 56px; padding-bottom: 96px; }

h1 {
  font-size: 40px;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  font-weight: 700;
}
h2 {
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 56px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}
h3 { font-size: 18px; margin: 32px 0 8px; font-weight: 600; }

p { margin: 16px 0; }

ul, ol { padding-left: 24px; }
li { margin: 6px 0; }

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  background: var(--color-surface);
  padding: 2px 6px;
  border-radius: 3px;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  font-size: 15px;
}
th, td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--color-surface); font-weight: 600; }

hr { border: 0; border-top: 1px solid var(--color-border); margin: 32px 0; }

/* App list */
.app-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.app-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.app-card:hover {
  border-color: var(--color-link);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
@media (prefers-color-scheme: dark) {
  .app-card:hover { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4); }
}
.app-card-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 12px;
  object-fit: cover;
}
.app-card-body { flex: 1; min-width: 0; }
.app-card-title {
  display: block;
  font-weight: 600;
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 4px;
}
.app-card:hover .app-card-title { color: var(--color-link); }
.app-card-desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.6;
}
/* Make the whole card clickable */
a.app-card { text-decoration: none; }
a.app-card:hover { text-decoration: none; }

/* Store badges */
.store-badges { margin: 20px 0; }
.store-badge { height: 60px; width: auto; vertical-align: middle; }

/* Legal layout */
.legal-header { margin-bottom: 24px; }
.legal-header .meta { margin: 4px 0; color: var(--color-muted); font-size: 14px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  color: var(--color-muted);
  font-size: 14px;
}
.site-footer p { margin: 4px 0; }

/* Language picker (root) */
.lang-picker {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.lang-picker .choices { display: flex; gap: 16px; }
.lang-picker .choices a {
  display: inline-block;
  padding: 12px 32px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-weight: 600;
}