:root {
  --bg: #14151a;
  --bg-raised: #1c1e24;
  --line: #2a2d35;
  --text: #eceef1;
  --text-dim: #8b909c;
  --accent: #e8a33d;
  --accent-dim: #6b5330;
  --radius: 10px;
  --mono: "SF Mono", "Roboto Mono", Consolas, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(20, 21, 26, 0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; letter-spacing: 0.02em; white-space: nowrap; }
.brand-mark { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }

.search-form { flex: 1; display: flex; gap: 8px; max-width: 640px; }
.search-form input {
  flex: 1;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
}
.search-form input:focus { outline: none; border-color: var(--accent); }
.search-form button {
  background: var(--accent);
  border: none;
  color: #1a1305;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius);
  cursor: pointer;
}
.search-form button:hover { filter: brightness(1.08); }

.layout {
  display: flex;
  align-items: stretch;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  border-right: 1px solid var(--line);
  padding: 20px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 12px;
  padding: 0 4px;
}
.tag-list { display: flex; flex-direction: column; gap: 4px; }
.tag-row {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 14px; border-radius: 999px; cursor: pointer;
  font-size: 13px; color: var(--text-dim);
  border: 1px solid var(--line);
  background: var(--bg-raised);
}
.tag-row:hover { border-color: var(--accent-dim); }
.tag-row.active { background: var(--accent); color: #1a1305; border-color: var(--accent); }
.tag-row .count {
  font-family: var(--mono); font-size: 11px; opacity: 0.7;
}
.tag-empty { font-size: 12px; color: var(--text-dim); padding: 0 4px; }

.main-area { flex: 1; min-width: 0; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  padding: 8px 28px 48px;
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent-dim); }
.card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; background: #0d0e11; }
.card-meta { padding: 10px 12px; }
.card-filename { font-size: 12px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-time { font-family: var(--mono); font-size: 12px; color: var(--accent); margin-top: 4px; }
.card-tags { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.card-tags span {
  font-size: 10px; color: var(--text-dim); border: 1px solid var(--line);
  border-radius: 999px; padding: 2px 8px;
}

.empty-state, .loading-state { text-align: center; color: var(--text-dim); padding: 60px 20px; }

.modal {
  position: fixed; inset: 0; background: rgba(10, 10, 12, 0.85);
  display: flex; align-items: center; justify-content: center; z-index: 100;
  padding: 24px;
}
.modal[hidden] { display: none; }
.modal-content {
  background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius);
  max-width: 900px; width: 100%; position: relative; overflow: hidden;
}
.modal-close {
  position: absolute; top: 10px; right: 10px; background: var(--accent); color: #1a1305;
  border: none; padding: 8px 16px; border-radius: 999px; cursor: pointer; font-size: 13px;
  font-weight: 600; z-index: 2;
}
.video-error {
  padding: 40px 20px; text-align: center; color: var(--text-dim); font-size: 14px;
}
.video-error a { color: var(--accent); }

.nav-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0,0,0,0.5); color: var(--text); border: 2px solid rgba(255,255,255,0.15);
  width: 64px; height: 64px; border-radius: 50%; cursor: pointer;
  font-size: 34px; z-index: 3; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.nav-btn:hover { background: rgba(0,0,0,0.8); border-color: var(--accent); }
.nav-btn:disabled { opacity: 0.2; cursor: default; }
.nav-prev { left: 16px; }
.nav-next { right: 16px; }

.similar-section { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
.similar-title { font-size: 12px; color: var(--text-dim); margin-bottom: 10px; }
.similar-row { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
.similar-card {
  flex: 0 0 140px; cursor: pointer; border-radius: var(--radius); overflow: hidden;
  background: var(--bg); border: 1px solid var(--line);
}
.similar-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.similar-card .similar-name {
  font-size: 11px; color: var(--text-dim); padding: 6px 8px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.similar-empty { font-size: 12px; color: var(--text-dim); }
.video-wrap { position: relative; }
.modal video { width: 100%; display: block; background: #000; max-height: 65vh; }
.modal-meta { padding: 16px 20px; }
.modal-file-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 10px;
}
.modal-file { font-family: var(--mono); font-size: 13px; color: var(--text-dim); }
.download-btn {
  background: var(--accent); color: #1a1305; font-weight: 600; font-size: 13px;
  padding: 8px 16px; border-radius: 999px; text-decoration: none; white-space: nowrap;
}
.download-btn:hover { filter: brightness(1.08); }
.current-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.current-tags span {
  font-size: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 10px; display: flex; align-items: center; gap: 6px;
}
.current-tags button { background: none; border: none; color: var(--text-dim); cursor: pointer; font-size: 12px; }

.tag-suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.tag-suggestions:empty { display: none; }
.suggestion-chip {
  font-size: 12px; color: var(--accent); border: 1px dashed var(--accent-dim);
  border-radius: 999px; padding: 4px 10px; cursor: pointer; background: none;
}
.suggestion-chip:hover { background: var(--accent-dim); }
.suggestion-chip .pct { opacity: 0.7; font-family: var(--mono); font-size: 10px; margin-left: 4px; }
#tag-form input {
  width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--text);
  padding: 8px 12px; border-radius: var(--radius); font-size: 13px;
}