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

:root {
  --bg: #ffffff;
  --surface: #f5f4f9;
  --border: #e4e2ed;
  --text: #1a1826;
  --muted: #6b6880;
  --accent: #6d28d9;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0e17;
    --surface: #1a1826;
    --border: #2e2b3d;
    --text: #f0eeff;
    --muted: #9991b8;
    --accent: #a78bfa;
  }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  padding: 2rem 1rem 4rem;
}

.container {
  max-width: 680px;
  margin: 0 auto;
}

.back-link {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
}

.back-link:hover {
  color: var(--accent);
}

.lang-switch {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.lang-switch button {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  cursor: pointer;
  transition:
    color 0.15s,
    border-color 0.15s,
    background 0.15s;
}

.lang-switch button.active {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

header {
  text-align: center;
  padding: 1.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.app-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  margin: 0 auto 1.25rem;
  display: block;
  overflow: hidden;
}

.app-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

header p {
  color: var(--muted);
  margin-top: 0.4rem;
}

nav.tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

nav.tabs a {
  padding: 0.6rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition:
    color 0.15s,
    border-color 0.15s;
  cursor: pointer;
}

nav.tabs a:hover,
nav.tabs a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

section.tab-panel {
  display: none;
}

section.tab-panel.active {
  display: block;
}

[data-lang] {
  display: none;
}

[data-lang].active {
  display: block;
}

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
  color: var(--accent);
}

p {
  margin-bottom: 0.9rem;
}
p:last-child {
  margin-bottom: 0;
}

ul {
  padding-left: 1.25rem;
  margin-bottom: 0.9rem;
}

li {
  margin-bottom: 0.3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.highlight {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}

.badge {
  display: inline-block;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.15rem 0.6rem;
  border-radius: 100px;
  margin-bottom: 0.6rem;
}

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

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.25rem;
  margin-bottom: 0.75rem;
}

details[open] {
  background: color-mix(in srgb, var(--accent) 5%, var(--surface));
}

summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 400;
  transition: transform 0.2s;
}

details[open] summary::after {
  content: '−';
}

details p {
  margin-top: 0.75rem;
}

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

/* ── App picker (root index.html) ───────────────────────── */
.app-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.app-list a.app-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-left-color: var(--card-accent, var(--border));
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s;
}

.app-list a.app-card:hover {
  border-color: var(--card-accent, var(--accent));
}

.app-card--wrapped {
  --card-accent: #6d28d9;
}

.app-card--campinglog {
  --card-accent: #435544;
}

@media (prefers-color-scheme: dark) {
  .app-card--wrapped {
    --card-accent: #a78bfa;
  }

  .app-card--campinglog {
    --card-accent: #8fbc92;
  }
}

.app-list .app-card img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  flex-shrink: 0;
}

.app-list .app-card .app-card-text h2 {
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.app-list .app-card .app-card-text p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}