:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1b1f24;
  --muted: #646d78;
  --border: #dde1e6;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1d8a4a;
  --warn: #b26a00;
  --err: #c62f2f;
  --field: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --card: #1a1e24;
    --text: #e8ebef;
    --muted: #9aa3ad;
    --border: #2d333b;
    --accent: #5b8ff5;
    --ok: #4cc27f;
    --warn: #e2a03f;
    --err: #ef6b6b;
    --field: #13161b;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: 80px;
}
h1 { margin: 0; font-size: 22px; }
h2 { margin: 0 0 12px; font-size: 16px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.hidden { display: none !important; }
code { background: var(--bg); padding: 1px 5px; border-radius: 4px; }

.top {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 16px 20px; border-bottom: 1px solid var(--border); background: var(--card);
}
.top p { margin: 2px 0 0; }
.badge { padding: 4px 10px; border-radius: 99px; font-size: 13px; border: 1px solid var(--border); white-space: nowrap; }
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.err { color: var(--err); border-color: var(--err); }

.layout {
  display: grid; grid-template-columns: 320px 1fr; gap: 16px;
  max-width: 1200px; margin: 16px auto; padding: 0 16px;
}
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }
.work { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.settings { align-self: start; display: flex; flex-direction: column; gap: 10px; }

label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--field);
  border: 1px solid var(--border); border-radius: 6px; padding: 7px 9px; width: 100%;
}
input[type=checkbox] { width: auto; }
textarea { resize: vertical; }
.hint { font-size: 13px; color: var(--muted); margin: 0; }

.btn {
  font: inherit; cursor: pointer; border-radius: 6px; padding: 7px 14px;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-text);
  text-decoration: none; display: inline-flex; align-items: center; gap: 4px;
}
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.primary { padding: 10px 22px; font-weight: 600; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; align-items: center; }

.tabs { display: flex; gap: 4px; margin-bottom: 12px; border-bottom: 1px solid var(--border); }
.tab { font: inherit; background: none; border: none; color: var(--muted); padding: 8px 12px; cursor: pointer; border-bottom: 2px solid transparent; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
.tabpane p { margin-top: 0; }

.drop { border: 2px dashed var(--border); border-radius: 10px; padding: 28px; text-align: center; cursor: pointer; color: var(--muted); }
.drop input { display: none; }
.drop:hover { border-color: var(--accent); }

.scenes-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.scenes-head .actions { margin: 0; }
.scenes { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.scene { display: grid; grid-template-columns: 200px 1fr; gap: 12px; border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
@media (max-width: 560px) { .scene { grid-template-columns: 1fr; } }
.scene-media { position: relative; aspect-ratio: 16/9; background: var(--bg); border-radius: 6px; overflow: hidden; display: grid; place-items: center; }
.scene-media img, .scene-media video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.scene-media video:not(.hidden) ~ .placeholder, .scene-media img:not(.hidden) ~ .placeholder { display: none; }
.placeholder { color: var(--muted); font-size: 13px; text-align: center; }
.scene-media video:not(.hidden) + .placeholder { display: none; }
.scene-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.state { font-size: 13px; color: var(--muted); white-space: pre-line; }
.state.ok { color: var(--ok); }
.state.run { color: var(--warn); }
.state.err { color: var(--err); }

.files { margin: 0; padding: 0; list-style: none; }
.files li { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--border); }
.files li:last-child { border-bottom: none; }
.files .fname { flex: 1; min-width: 0; word-break: break-all; }
.files .fsize { color: var(--muted); font-size: 13px; white-space: nowrap; }
.top-right { display: flex; align-items: center; gap: 8px; }
.error { color: var(--err); margin: 0; font-size: 14px; }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; }
.login-card p { margin: 0; }

.bar {
  position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 20px;
}
.bar strong { font-size: 18px; margin-right: 8px; }
.files input[type=checkbox] { width: auto; flex: none; }
.merge-status { margin: 8px 0 0; }
.merge-status:empty { display: none; }