:root {
  --bg: #f6f7fb; --panel: #fff; --text: #1d1f27; --muted: #6b7080;
  --border: #e1e3ea; --accent: #5865f2; --accent-text: #fff; --danger: #d83c3e; --ok: #2d9d5b;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #1e1f24; --panel: #2b2d34; --text: #eceef3; --muted: #a0a5b4; --border: #3b3e47; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, sans-serif; }
main { max-width: 960px; margin: 0 auto; padding: 24px 16px 96px; }
h1 { font-size: 1.5rem; margin: 0 0 16px; }
header { display: flex; justify-content: space-between; align-items: center; }
button {
  background: var(--accent); color: var(--accent-text); border: 0; border-radius: 6px;
  padding: 8px 14px; font: inherit; cursor: pointer;
}
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.danger { background: transparent; color: var(--danger); padding: 4px 8px; }
input[type=password], input[type=search] {
  font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--panel); color: var(--text); width: 100%;
}
#login form { display: grid; gap: 8px; max-width: 320px; }
.error { color: var(--danger); min-height: 1.5em; margin: 0; }
#dropzone {
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 32px;
  border: 2px dashed var(--border); border-radius: 10px; background: var(--panel); cursor: pointer;
  text-align: center;
}
#dropzone.over { border-color: var(--accent); }
#dropzone span { color: var(--muted); }
#uploads { list-style: none; padding: 0; margin: 12px 0; display: grid; gap: 6px; }
#uploads li { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; font-size: 0.9rem; }
#uploads progress { grid-column: 1 / -1; width: 100%; height: 6px; }
#uploads .ok { color: var(--ok); } #uploads .fail { color: var(--danger); }
.toolbar { display: flex; gap: 12px; align-items: center; margin: 20px 0 8px; }
#count { color: var(--muted); white-space: nowrap; }
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }
tbody tr:last-child td { border-bottom: 0; }
td.actions { white-space: nowrap; text-align: right; }
td.muted { color: var(--muted); }
#preview { position: fixed; left: 16px; right: 16px; bottom: 16px; width: calc(100% - 32px); max-width: 928px; margin: 0 auto; }