:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e3e6ea;
  --text: #16181d;
  --text-muted: #5b6270;
  --accent: #1e5eff;
  --accent-soft: rgba(30, 94, 255, 0.08);
  --good: #0f7b46;
  --good-soft: rgba(15, 123, 70, 0.1);
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 8px 24px rgba(16, 24, 40, 0.06);
  --radius: 14px;
  --maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --surface: #161b22;
    --border: #262d38;
    --text: #e8eaed;
    --text-muted: #9aa4b2;
    --accent: #6f9bff;
    --accent-soft: rgba(111, 155, 255, 0.12);
    --good: #4ade80;
    --good-soft: rgba(74, 222, 128, 0.12);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 20px 64px;
}

/* ---------- header ---------- */

.site-head { margin-bottom: 32px; }

.site-head h1 {
  margin: 0 0 6px;
  font-size: 1.9rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.site-head p {
  margin: 0;
  color: var(--text-muted);
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.back-link:hover { text-decoration: underline; }

/* ---------- app list (home) ---------- */

.app-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.app-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.app-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.app-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.app-card img {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  flex-shrink: 0;
  background: var(--accent-soft);
}

.app-card-body { flex: 1; min-width: 0; }

.app-card-name {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 2px;
}

.app-card-tagline {
  color: var(--text);
  font-size: 0.9rem;
  margin-bottom: 3px;
}

.app-card-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  overflow-wrap: anywhere;
}

.app-card-arrow {
  color: var(--text-muted);
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ---------- policy page ---------- */

.policy-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 8px;
}

.policy-head img {
  width: 60px;
  height: 60px;
  border-radius: 13px;
  flex-shrink: 0;
}

.policy-head h1 {
  margin: 0;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.policy-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 28px;
}

.policy-sub code {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.85em;
  overflow-wrap: anywhere;
}

.callout {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--good-soft);
  border: 1px solid var(--good);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.callout strong { color: var(--good); }

.callout p { margin: 0; font-size: 0.95rem; }

section { margin-bottom: 30px; }

section h2 {
  font-size: 1.05rem;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

section p { margin: 0 0 12px; }

section ul { margin: 0 0 12px; padding-left: 22px; }

section li { margin-bottom: 6px; }

section li:last-child { margin-bottom: 0; }

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

.perm-name { font-weight: 600; }

.site-foot {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ---------- error state ---------- */

.error-box {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.error-box h1 { font-size: 1.25rem; margin: 0 0 8px; }

.error-box p { color: var(--text-muted); margin: 0 0 16px; }

@media (max-width: 480px) {
  .wrap { padding: 28px 16px 48px; }
  .site-head h1 { font-size: 1.55rem; }
  .policy-head h1 { font-size: 1.35rem; }
  .policy-head img { width: 48px; height: 48px; }
}