:root {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1e222b;
  --border: #2b313d;
  --fg: #e8eaf0;
  --fg-muted: #8b93a3;
  --accent: #4f8cff;
  --accent-fg: #ffffff;
  --danger: #e5534b;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #eceef2;
  --border: #d8dce3;
  --fg: #1d2128;
  --fg-muted: #6b7484;
  --accent: #2f6fed;
  --accent-fg: #ffffff;
  --danger: #d0352c;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* Top bar */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
}
.nav { display: flex; gap: 1rem; flex: 1; }
.controls { display: flex; align-items: center; gap: 0.8rem; }
.lang-toggle a {
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  color: var(--fg-muted);
  font-size: 0.85rem;
}
.lang-toggle a.active {
  background: var(--accent);
  color: var(--accent-fg);
}

/* Theme toggle */
.theme-toggle {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 8px;
  width: 38px;
  height: 34px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle svg { width: 18px; height: 18px; fill: currentColor; stroke: currentColor; stroke-width: 1.5; }
.icon-sun { display: none; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem;
  width: 100%;
  flex: 1;
}
.footer {
  text-align: center;
  padding: 1rem;
  color: var(--fg-muted);
  font-size: 0.85rem;
}

/* Cards & forms */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem;
  margin-bottom: 1rem;
}
.card h1 { margin: 0 0 0.8rem; font-size: 1.35rem; }
.auth-card { max-width: 380px; margin: 3rem auto; }
.table-card { overflow-x: auto; }
.stack { display: flex; flex-direction: column; gap: 0.5rem; }
.row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.actions { gap: 0.6rem; }
.inline { display: inline; }

label { font-size: 0.9rem; font-weight: 600; }
input[type="text"],
input[type="password"],
input[type="url"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--fg);
  font-size: 1rem;
}
.row input[type="text"] { flex: 1; width: auto; }
textarea.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.9rem; }
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--fg);
  cursor: pointer;
  font-size: 0.95rem;
  text-decoration: none;
  text-align: center;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn.small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

/* Errors & notices */
.error {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  border: 1px solid var(--danger);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
}
.notice {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
}
.danger-zone { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }

/* Pages table */
.pages-table { width: 100%; border-collapse: collapse; }
.pages-table th, .pages-table td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.pages-table th { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--fg-muted); }
.num { font-variant-numeric: tabular-nums; }
.num.big { font-size: 1.3rem; font-weight: 700; margin-right: 0.6rem; }

/* Tags */
.tag {
  display: inline-block;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-size: 0.78rem;
  color: var(--fg-muted);
  margin: 0 0.2rem 0.2rem 0;
}

/* Markdown content */
.markdown h1, .markdown h2, .markdown h3 { margin: 1rem 0 0.5rem; line-height: 1.25; }
.markdown h1 { font-size: 1.3rem; }
.markdown h2 { font-size: 1.2rem; }
.markdown p, .markdown ul, .markdown ol, .markdown pre, .markdown table { margin: 0.5rem 0; }
.markdown code {
  background: var(--surface-2);
  padding: 0.1rem 0.35rem;
  border-radius: 5px;
  font-size: 0.9em;
}
.markdown pre {
  background: var(--surface-2);
  padding: 0.8rem;
  border-radius: 8px;
  overflow-x: auto;
  border: 1px solid var(--border);
}
.markdown pre code { background: none; padding: 0; }
.markdown table { border-collapse: collapse; width: 100%; }
.markdown th, .markdown td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; }
.markdown img { max-width: 100%; border-radius: 8px; }
.markdown blockquote {
  border-left: 4px solid var(--accent);
  margin: 0.5rem 0;
  padding: 0.1rem 0 0.1rem 0.8rem;
  color: var(--fg-muted);
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.6rem;
}
.gallery img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.gallery a:hover img { filter: brightness(1.1); }
.gallery-item { margin: 0; }
.gallery-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.35rem 0.1rem 0;
}
.gallery-actions .small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Files & video */
.file-list { list-style: none; padding: 0; margin: 0 0 0.8rem; }
.file-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
}
.file-list .btn { margin-left: auto; }
.video-embed iframe, video {
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: block;
  margin: 0 auto;
}
.video-item { margin-bottom: 1rem; }
.video-item:last-child { margin-bottom: 0; }
.video-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 0.3rem;
  flex-wrap: wrap;
}
.video-title { font-size: 0.9rem; font-weight: 600; }

/* QR page */
.qr-preview { text-align: center; margin: 0.5rem 0 1rem; }
.qr-img {
  max-width: 260px;
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}

/* Utilities */
.muted { color: var(--fg-muted); }
.small { font-size: 0.85rem; }
.section-title { font-size: 1.05rem; margin: 0 0 0.7rem; }

/* Print: light theme, cards merged */
@media print {
  body { background: #fff; color: #000; }
  .topbar, .footer, .btn, form { display: none; }
  .card { border: none; box-shadow: none; padding: 0; break-inside: avoid; }
  .gallery img { border: 1px solid #ccc; }
}

/* Small screens */
@media (max-width: 600px) {
  .topbar-inner { gap: 0.5rem; }
  .nav { order: 3; flex-basis: 100%; }
  .container { padding: 0.6rem; }
}