:root {
  --bg: #f7f7f8; --fg: #1a1a1a; --muted: #666; --card: #fff; --border: #e2e2e5;
  --accent: #c4302b; --accent-fg: #fff; --err: #b3261e; --ok: #1e7d32;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121212; --fg: #eaeaea; --muted: #9a9a9a; --card: #1c1c1e;
    --border: #2e2e31; --accent: #e5453f; --accent-fg: #fff; --err: #ff6b60; --ok: #4caf50; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.err-text { color: var(--err); }

.site-header { position: sticky; top: 0; z-index: 50; }
.topbar { display: flex; align-items: center; gap: 24px; padding: 12px 20px;
  border-bottom: 1px solid var(--border); background: var(--card); }
.brand { font-weight: 700; font-size: 18px; color: var(--fg); }
.nav { display: flex; gap: 16px; flex: 1; }
.nav a { color: var(--fg); }
.icon-link { font-size: 18px; }
.logout-form { margin: 0; }
button.icon-link { background: none; border: none; color: var(--accent); cursor: pointer;
  padding: 0; font-family: inherit; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; margin-bottom: 16px; }
.section-header { display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px; }
.section-header h2 { margin: 0; font-size: 15px; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.spinner { font-size: 13px; color: var(--muted); }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.flash.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.flash.err { background: color-mix(in srgb, var(--err) 15%, transparent); color: var(--err); }

.auth-wrap { max-width: 380px; margin: 60px auto; text-align: center; }
.brand-big { font-size: 28px; font-weight: 700; margin-bottom: 4px; }
.hero-sub { color: var(--muted); margin-bottom: 20px; }
form label { display: block; font-size: 13px; margin: 10px 0 4px; text-align: left; }
input[type=text], input[type=password], input[type=email] {
  width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--fg); font-size: 14px; }
.btn { display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--fg); cursor: pointer; font-size: 14px; }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.block { display: block; width: 100%; text-align: center; }
.btn.big { padding: 12px; font-size: 16px; }

.feed-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.video-card { color: var(--fg); border: 1px solid var(--border); border-radius: 10px; overflow: hidden;
  background: var(--card); display: block; }
.video-card.watched { opacity: 0.5; }
.video-card.watched:hover { opacity: 0.85; }
.video-card-link { color: var(--fg); display: block; }
.video-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.video-card-meta { padding: 10px 10px 0 10px; }
.video-card-title { font-weight: 600; font-size: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-card-date { font-size: 12px; margin-top: 2px; }
.video-card-channel { display: block; font-size: 12px; padding: 4px 10px 10px 10px; }
.video-card-channel:hover { color: var(--fg); text-decoration: underline; }

.search-form { display: flex; gap: 8px; margin-bottom: 12px; }
.search-form input[type="text"] { flex: 1; padding: 8px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--card); color: var(--fg); font-size: 14px; }
.history-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 20px; }
.history-pill { border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px;
  font-size: 13px; color: var(--fg); background: var(--card); }
.history-pill:hover { background: var(--bg); }
.search-card-footer { padding: 4px 10px 10px 10px; }
.search-card-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.search-card-row .video-card-channel { padding: 0; }
.search-card-footer form { margin: 0; }
.card-actions { display: flex; align-items: center; gap: 6px; }
.badge { font-size: 12px; padding: 3px 9px; border-radius: 999px; color: var(--muted);
  border: 1px solid var(--border); }
.badge.subscribed { color: var(--ok); border-color: var(--ok); }

[x-cloak] { display: none !important; }
.playlist-popover { margin-top: 8px; padding: 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg); }
.playlist-popover form { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.playlist-popover select, .playlist-popover input[type="text"] { padding: 6px 8px;
  border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--fg);
  font-size: 13px; }
.playlist-popover select { flex: 1; min-width: 100px; }
.playlist-popover input[type="text"] { flex: 1; min-width: 100px; }

.category-nav { display: flex; gap: 8px; padding: 8px 20px; overflow-x: auto;
  background: var(--card); border-bottom: 1px solid var(--border); }
.category-nav a { border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px;
  font-size: 13px; color: var(--fg); background: var(--bg); white-space: nowrap; flex-shrink: 0; }
.category-section { margin-bottom: 32px; scroll-margin-top: 120px; }
.category-section h2 { font-size: 18px; margin-bottom: 12px; }

.video-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; margin-bottom: 20px; }
@media (max-width: 800px) { .video-layout { grid-template-columns: 1fr; } }
.player-embed { position: relative; padding-top: 56.25%; border-radius: 10px; overflow: hidden; }
.player-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.export-row { display: flex; gap: 8px; margin-top: 10px; }
.export-row form { margin: 0; }

.comment { display: flex; gap: 10px; padding: 10px 0; border-top: 1px solid var(--border); }
.comment:first-child { border-top: none; }
.avatar { width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; }
.comment-meta { font-size: 13px; }
.comment-text { white-space: pre-wrap; word-wrap: break-word; }
.replies { margin-top: 8px; padding-left: 16px; border-left: 2px solid var(--border); }
.replies .comment { padding: 8px 0; }

.comment-meta.clickable, .replies-toggle { cursor: pointer; }
.comment-meta.clickable:hover, .replies-toggle:hover { color: var(--fg); }
.replies-toggle { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.comment-meta .caret { display: inline-block; width: 1em; color: var(--muted); }

.transcript-text { white-space: pre-wrap; max-height: 400px; overflow-y: auto; font-size: 13px; }