:root {
  --bg: #f7f5f2;
  --surface: #ffffff;
  --text: #1c1a17;
  --muted: #6b655c;
  --border: rgba(28, 26, 23, 0.08);
  --accent: #b5482a;
  --accent-2: #2a6f6b;
  --accent-3: #6b4fa0;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  --os-ios: #8b5cd6;
  --os-android: #1e9e4f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16151a;
    --surface: #201f26;
    --text: #ece9e4;
    --muted: #9b968d;
    --border: rgba(255, 255, 255, 0.08);
    --accent: #e2764f;
    --accent-2: #4fb3ac;
    --accent-3: #a48cd6;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.4);
    --os-ios: #b79bf0;
    --os-android: #5ec97f;
  }
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 28px 32px 16px;
  max-width: 1400px;
  margin: 0 auto;
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon { font-size: 2rem; }
.brand h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.01em; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: 0.9rem; }

.top-links { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.top-links a {
  display: inline-block;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.15s ease;
}
.top-links a:hover { color: var(--text); }
.top-links a.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.top-links a.external {
  color: var(--accent-2);
  border-color: color-mix(in srgb, var(--accent-2) 40%, transparent);
  background: color-mix(in srgb, var(--accent-2) 10%, var(--surface));
}
.top-links a.external:hover { background: var(--accent-2); color: #fff; border-color: var(--accent-2); }
.top-links a.tuto {
  color: var(--accent-3);
  border-color: color-mix(in srgb, var(--accent-3) 40%, transparent);
  background: color-mix(in srgb, var(--accent-3) 10%, var(--surface));
}
.top-links a.tuto:hover { background: var(--accent-3); color: #fff; border-color: var(--accent-3); }
.nav-divider { width: 1px; height: 20px; background: var(--border); }
.logout-form { display: inline-block; margin: 0; }
.link-btn {
  display: inline-block;
  color: var(--accent);
  font-size: 0.85rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
  padding: 8px 16px;
  border-radius: 999px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}
.link-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.howto {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 20px;
}
.howto h2 { margin: 0 0 10px; font-size: 1rem; }
.howto ol { margin: 0; padding-left: 20px; color: var(--muted); font-size: 0.9rem; display: flex; flex-direction: column; gap: 6px; }
.howto li::marker { color: var(--accent); font-weight: 600; }

.search-wrap { flex: 1; max-width: 340px; min-width: 220px; }
#search {
  width: 100%;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
}
#search:focus { border-color: var(--accent); }

.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 4px 32px 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover { color: var(--text); }
.chip.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.chip .count {
  opacity: 0.6;
  margin-left: 4px;
  font-variant-numeric: tabular-nums;
}

.notice {
  max-width: 1400px;
  margin: 0 auto 16px;
  padding: 0 32px;
  color: var(--accent);
  font-size: 0.9rem;
}

.discover-banner-wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px 20px;
}
.discover-banner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: color-mix(in srgb, var(--accent-3) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent-3) 30%, transparent);
  border-radius: 14px;
  padding: 16px 24px;
  font-size: 0.88rem;
  color: var(--text);
}
.discover-banner p { margin: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.discover-banner .btn { padding: 7px 16px; font-size: 0.85rem; }
.discover-banner .btn:not(.btn-primary) {
  color: var(--accent-3);
  border-color: color-mix(in srgb, var(--accent-3) 40%, transparent);
  background: color-mix(in srgb, var(--accent-3) 10%, var(--surface));
}

.grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 8px 32px 48px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease;
}
.card:hover { transform: translateY(-4px); }

.cover {
  position: relative;
  aspect-ratio: 2 / 3;
  background: linear-gradient(135deg, var(--border), transparent);
}
.cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cover.no-cover img { display: none; }
.cover.no-cover::after {
  content: "📖";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  opacity: 0.35;
}

.badge {
  position: absolute;
  top: 8px;
  left: 8px;
  font-size: 0.65rem;
  padding: 3px 9px;
  border-radius: 999px;
  color: #fff;
  backdrop-filter: blur(4px);
}
.badge-komga { background: color-mix(in srgb, var(--accent) 85%, black); }
.badge-kavita { background: color-mix(in srgb, var(--accent-2) 85%, black); }
.badge-audiobookshelf { background: color-mix(in srgb, var(--accent-3) 85%, black); }

.meta { padding: 10px 12px 14px; }
.meta h2 {
  font-size: 0.9rem;
  margin: 0 0 4px;
  font-weight: 600;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.meta p { margin: 0; font-size: 0.78rem; color: var(--muted); }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 60px 20px;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 20px 32px 40px;
}

/* Forms (request / signup / admin) */
.form-page {
  max-width: 480px;
  margin: 60px auto;
  padding: 0 20px;
}

.panel {
  background: var(--surface);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.panel.success { text-align: center; }
.panel.success p { margin: 0 0 16px; }

.form { display: flex; flex-direction: column; gap: 18px; }
.form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}
.form input[type="email"],
.form input[type="password"],
.form input[type="text"],
.form textarea {
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}
.form-hint { margin: -8px 0 0; color: var(--muted); font-size: 0.82rem; }
.form-hint a { color: var(--accent-2); text-decoration: none; font-weight: 600; }
.form-hint a:hover { text-decoration: underline; }

.login-links { margin-top: 4px; display: flex; flex-direction: column; gap: 10px; }
.login-links .form-hint { margin: 0; }
.login-links .signup-hint { padding-top: 10px; border-top: 1px solid var(--border); }

.form-warning {
  margin: 0;
  padding: 10px 14px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.4;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: center;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Companion apps tutorial */
.apps-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 8px 32px 60px;
}
.service-block { margin-top: 36px; }
.service-block h2 { font-size: 1.15rem; margin: 0 0 12px; }
.service-intro { color: var(--muted); font-size: 0.9rem; margin: 0 0 14px; }
.web-links { display: flex; gap: 12px; flex-wrap: wrap; }

.opds-note {
  background: color-mix(in srgb, var(--accent-2) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent-2) 30%, transparent);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 16px;
  font-size: 0.88rem;
}
.opds-note p { margin: 0 0 8px; }
.opds-note ol { margin: 0 0 8px; padding-left: 20px; color: var(--text); display: flex; flex-direction: column; gap: 4px; }
.opds-note code { background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 0.85em; }

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.app-card-head { display: flex; align-items: center; gap: 10px; }
.app-icon { font-size: 1.3rem; }
.app-card-head strong { display: block; font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-top: 1px; }
.os-tag { display: block; font-size: 1.15rem; font-weight: 800; line-height: 1.15; letter-spacing: -0.01em; }
.app-card.ios { border-top: 4px solid var(--os-ios); }
.app-card.android { border-top: 4px solid var(--os-android); }
.os-tag.ios { color: var(--os-ios); }
.os-tag.android { color: var(--os-android); }
.app-card ol { margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.85rem; display: flex; flex-direction: column; gap: 5px; }
.app-card ol code { background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 0.85em; color: var(--text); }
.app-card .btn { align-self: flex-start; }

/* Admin panel */
.admin-wrap { max-width: 1000px; margin: 40px auto; padding: 0 20px; }
.admin-section { margin-bottom: 40px; }
.admin-section h2 { font-size: 1.1rem; margin-bottom: 12px; }
.req-card {
  background: var(--surface);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 16px 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.req-info { flex: 1; min-width: 200px; }
.req-info strong { display: block; }
.req-info span { color: var(--muted); font-size: 0.85rem; }
.req-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.req-actions form { display: inline; }
.btn-approve { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.btn-reject { background: transparent; }
.empty-hint { color: var(--muted); font-size: 0.85rem; }

/* Mobile / small tablet */
@media (max-width: 640px) {
  .topbar { padding: 20px 16px 12px; gap: 12px; }
  .brand-icon { font-size: 1.6rem; }
  .brand h1 { font-size: 1.25rem; }
  .tagline { font-size: 0.8rem; }
  .top-links { width: 100%; order: 3; gap: 20px; }
  .top-links a, .link-btn { padding: 11px 16px; }
  .nav-divider { display: none; }
  .search-wrap { min-width: 0; max-width: none; flex: 1 1 100%; order: 2; }
  #search { padding: 12px 16px; }

  .filters { padding: 4px 16px 16px; gap: 8px; }
  .chip { padding: 12px 14px; font-size: 0.82rem; }

  .grid { padding: 8px 16px 40px; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; }
  .notice { padding: 0 16px; }
  .discover-banner-wrap { padding: 0 16px 16px; }
  .discover-banner { padding: 14px 18px; }
  footer { padding: 16px 16px 32px; }

  .form-page { margin: 32px auto; padding: 0 16px; }
  .panel { padding: 20px; }
  .btn { padding: 13px 22px; }

  .apps-page { padding: 8px 16px 40px; }
  .web-links { flex-direction: column; }
  .web-links .btn { text-align: center; }

  .admin-wrap { margin: 24px auto; padding: 0 16px; }
  .req-card { padding: 14px 16px; flex-direction: column; align-items: stretch; }
  .req-actions { width: 100%; }
  .req-actions .btn { flex: 1; }
}