:root { --bg: #f6f7f9; --fg: #1d2127; --muted: #6a7280; --accent: #1f6feb; --card: #fff; --line: #dde1e6; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #14171b; --fg: #e8eaed; --muted: #9aa3ad; --accent: #58a6ff; --card: #1d2127; --line: #2d333b; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
.top { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 600; color: var(--fg); }
main { max-width: 1200px; margin: 0 auto; padding: 20px; }
h1 { font-size: 1.4rem; margin: 0.2em 0; }
button, input, select { font: inherit; padding: 6px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--fg); }
button { background: var(--accent); color: #fff; border: none; cursor: pointer; }
button.link { background: none; color: var(--accent); padding: 0; }
.notice { background: #fff4e5; color: #6b4500; border: 1px solid #f0c27a; padding: 8px 12px; border-radius: 6px; }
.login { max-width: 320px; margin: 10vh auto; display: flex; flex-direction: column; gap: 10px; background: var(--card); padding: 24px; border-radius: 10px; border: 1px solid var(--line); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 8px; }
.count, .meta { color: var(--muted); font-size: 0.9em; }
.grid { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.grid li { background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.grid img, .placeholder { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #000; display: block; }
.grid .title { display: block; padding: 8px 10px 0; color: var(--fg); font-weight: 600; }
.grid .meta { padding: 0 10px; }
.grid .meta:last-child { padding-bottom: 10px; }
.grid .empty { padding: 20px; grid-column: 1 / -1; }
.player { background: #000; border-radius: 8px; overflow: hidden; margin: 12px auto; }
.player.landscape { aspect-ratio: 16 / 9; width: 100%; }
.player.portrait { aspect-ratio: 9 / 16; height: 80vh; max-width: 100%; }
.player iframe { width: 100%; height: 100%; border: 0; display: block; }
.description { white-space: pre-wrap; }
.share { margin-top: 24px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
.share h2 { font-size: 1.1rem; margin: 0 0 8px; }
.share-body { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.qr svg { display: block; border-radius: 4px; }
.share-link { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; flex: 1; min-width: 260px; }
.share-link input { flex: 1; min-width: 220px; }
.share-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 12px; }