:root {
  --paper: #f1f5f7;
  --surface: #ffffff;
  --ink: #1c2b35;
  --ink-soft: #52646f;
  --line: #d3dde2;
  --glacier: #2c6e8f;
  --glacier-ink: #ffffff;
  --glacier-soft: #dcebf2;
  --pine: #2e7a58;
  --pine-soft: #dcefe5;
  --amber: #a86a12;
  --amber-soft: #f6ead6;
  --brick: #a93a34;
  --brick-soft: #f6dedc;
  --focus: #e0a526;
  --radius-sm: 4px;
  --radius-md: 8px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121b21;
    --surface: #1a252d;
    --ink: #e3ecf0;
    --ink-soft: #9db0ba;
    --line: #2d3c46;
    --glacier: #5ea9cc;
    --glacier-ink: #0c171d;
    --glacier-soft: #1d3644;
    --pine: #6cc39a;
    --pine-soft: #183427;
    --amber: #e3a54a;
    --amber-soft: #3a2c15;
    --brick: #ec7d76;
    --brick-soft: #3d1f1d;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2 { margin: 0; line-height: 1.2; }
h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 1.1rem; font-weight: 650; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.82em; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

/* --- header --- */
.top {
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: flex-end;
  padding: 24px clamp(16px, 4vw, 40px) 16px;
}
.tagline { margin: 4px 0 0; color: var(--ink-soft); max-width: 60ch; }
.login, .session, .channel { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.session #session-user { font-weight: 600; }

input {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 7px 10px; min-width: 0;
}
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--glacier); }

.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  border-radius: var(--radius-sm); padding: 7px 14px;
}
.btn:hover:not(:disabled) { border-color: var(--glacier); }
.btn.primary { background: var(--glacier); border-color: var(--glacier); color: var(--glacier-ink); }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.quiet { background: transparent; border-color: transparent; color: var(--ink-soft); }
.btn.small { padding: 3px 9px; font-size: 0.85rem; }
.btn.danger { color: var(--brick); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.badge { font-size: 0.8rem; font-weight: 600; padding: 2px 8px; border-radius: 99px; background: var(--line); color: var(--ink); }
.badge.ok { background: var(--pine-soft); color: var(--pine); }
.badge.view { background: var(--amber-soft); color: var(--amber); }

/* --- channel bar --- */
.bar {
  display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; justify-content: space-between;
  margin: 0 clamp(16px, 4vw, 40px); padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md);
}
.channel label { font-weight: 600; }
.channel input { width: 14rem; }
.facts { display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 0; color: var(--ink-soft); font-size: 0.88rem; }
.facts div { display: flex; gap: 6px; }
.facts dt { font-weight: 400; }
.facts dd { margin: 0; color: var(--ink); font-weight: 600; }

.notice { margin: 12px clamp(16px, 4vw, 40px) 0; padding: 10px 14px; border-radius: var(--radius-sm); background: var(--glacier-soft); }
.notice.error { background: var(--brick-soft); color: var(--brick); }

/* --- layout --- */
.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 380px); gap: 24px;
  padding: 20px clamp(16px, 4vw, 40px) 48px; align-items: start;
}
@media (max-width: 960px) { .layout { grid-template-columns: minmax(0, 1fr); } }

.videos-head, .queue-head { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.check-all { display: flex; gap: 6px; align-items: center; color: var(--ink-soft); margin-right: 6px; }
.empty { color: var(--ink-soft); }

/* --- video table --- */
.table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; }
.table th { white-space: nowrap; text-align: left; font-size: 0.82rem; font-weight: 600; color: var(--ink-soft); padding: 8px 10px; border-bottom: 1px solid var(--line); }
.table td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table tr.off td:not(.c-do) { opacity: 0.55; }
.c-pick { width: 34px; }
.video { display: flex; gap: 10px; align-items: flex-start; min-width: 0; }
.thumb { width: 72px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-sm); background: var(--line); flex: none; }
.v-title { font-weight: 600; overflow-wrap: anywhere; }
.v-meta { display: flex; flex-wrap: wrap; gap: 2px 10px; color: var(--ink-soft); font-size: 0.83rem; }
.v-why { color: var(--amber); font-size: 0.83rem; }
.v-ok { color: var(--pine); font-size: 0.83rem; }
.v-last { font-size: 0.83rem; }
.v-last.failed { color: var(--brick); }
.c-cid { white-space: nowrap; color: var(--ink-soft); }
.c-do { white-space: nowrap; text-align: right; }
.c-do .btn + .btn { margin-left: 4px; }

.store { font-size: 0.82rem; font-weight: 600; padding: 2px 8px; border-radius: 99px; white-space: nowrap; }
.store.ipfs { background: var(--glacier-soft); color: var(--glacier); }
.store.hot { background: var(--amber-soft); color: var(--amber); }
.store.archived { background: var(--pine-soft); color: var(--pine); }
.store.other { background: var(--brick-soft); color: var(--brick); }

@media (max-width: 640px) {
  .table thead { display: none; }
  .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
  .table tr { display: grid; grid-template-columns: 34px 1fr; padding: 10px 0; border-bottom: 1px solid var(--line); }
  .table td { border: 0; padding: 4px 10px; }
  .table td.c-pick { grid-row: span 4; }
  .c-cid { max-width: none; }
  .c-do { text-align: left; }
}

/* --- queue --- */
.queue { position: sticky; top: 16px; }
.live { font-size: 0.8rem; color: var(--ink-soft); }
.live.on { color: var(--pine); }
.disk { margin-bottom: 14px; font-size: 0.85rem; color: var(--ink-soft); }
.meter { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; margin-top: 4px; }
.meter > i { display: block; height: 100%; background: var(--glacier); }
.meter.warn > i { background: var(--amber); }

.jobs { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.job { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 12px 14px; }
.job-head { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.job-title { font-weight: 600; }
.job-sub { color: var(--ink-soft); font-size: 0.82rem; }
.job .meter { height: 8px; margin: 8px 0 10px; }
.job .meter > i { background: var(--pine); }
.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.item { cursor: pointer; border-radius: var(--radius-sm); padding: 4px; margin: -4px; }
.item:hover { background: var(--glacier-soft); }
.item-head { display: flex; justify-content: space-between; gap: 8px; font-size: 0.88rem; }
.item-name { overflow-wrap: anywhere; }
.item-state { font-weight: 600; white-space: nowrap; }
.item-state.done { color: var(--pine); }
.item-state.failed { color: var(--brick); }
.item-state.cancelled { color: var(--ink-soft); }
.item-state.warn { color: var(--amber); }
.item-err { color: var(--brick); font-size: 0.82rem; overflow-wrap: anywhere; }
.item-detail { color: var(--ink-soft); font-size: 0.8rem; }

/* The stage rail: the one loud element. One segment per stage, filled as it passes. */
.rail { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 3px; margin: 5px 0 2px; }
.rail > span { height: 6px; border-radius: 2px; background: var(--line); position: relative; overflow: hidden; }
.rail > span.past { background: var(--glacier); }
.rail > span.now { background: var(--glacier-soft); }
.rail > span.now > i { position: absolute; inset: 0 auto 0 0; background: var(--glacier); }
.rail.done > span { background: var(--pine); }
.rail.failed > span.now { background: var(--brick); }
.rail.indeterminate > span.now > i { width: 35%; animation: slide 1.4s ease-in-out infinite; }
@keyframes slide { from { left: -35%; } to { left: 100%; } }
@media (prefers-reduced-motion: reduce) { .rail.indeterminate > span.now > i { animation: none; width: 100%; opacity: 0.6; } }
.rail-labels { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 3px; font-size: 0.68rem; color: var(--ink-soft); }

/* --- dialogs --- */
.plan { border: 1px solid var(--line); border-radius: var(--radius-md); padding: 0; background: var(--surface); color: var(--ink); width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 48px); }
.plan.narrow { width: min(480px, calc(100vw - 32px)); }
.plan::backdrop { background: rgb(12 23 29 / 0.45); }
.plan-inner { display: grid; gap: 12px; padding: 20px; }
.plan-body { max-height: 60vh; overflow: auto; display: grid; gap: 10px; }
.plan-row { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 12px; }
.plan-row.no { background: var(--amber-soft); }
.plan-row h3 { margin: 0 0 4px; font-size: 0.95rem; }
.plan-row pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 0.78rem; background: var(--paper); padding: 8px; border-radius: var(--radius-sm); }
.plan-actions { display: flex; justify-content: flex-end; gap: 8px; }
.events { list-style: none; padding: 0; margin: 0; font-size: 0.83rem; display: grid; gap: 3px; }
.events .warn { color: var(--amber); }
.events .error { color: var(--brick); }
.events time { color: var(--ink-soft); margin-right: 8px; }

.plan.wide { width: min(900px, calc(100vw - 32px)); }
.preview-frame { aspect-ratio: 16 / 9; background: #000; border-radius: var(--radius-sm); overflow: hidden; }
.preview-frame iframe { display: block; width: 100%; height: 100%; border: 0; }
.preview-body { display: grid; gap: 10px; font-size: 0.9rem; }
.preview-body details summary { cursor: pointer; color: var(--ink-soft); }
.verdict { margin: 0; padding: 8px 12px; border-radius: var(--radius-sm); font-weight: 600; }
.verdict.wait { background: var(--paper); color: var(--ink-soft); font-weight: 400; }
.verdict.ok { background: var(--pine-soft); color: var(--pine); }
.verdict.warn { background: var(--brick-soft); color: var(--brick); }
.verdict.info { background: var(--amber-soft); color: var(--amber); }
.sources .num { text-align: right; width: 6rem; }
.src { font-weight: 600; }
.src.s3 { color: var(--pine); }
.src.hot { color: var(--amber); }
.src.ipfs { color: var(--glacier); }
.src.other { color: var(--brick); }
a.btn { display: inline-block; text-decoration: none; }
#preview-open { margin-right: auto; }

.mode { display: inline-flex; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0; margin: 0; justify-self: start; overflow: hidden; }
.mode label { display: flex; align-items: center; gap: 6px; padding: 5px 12px; cursor: pointer; font-size: 0.88rem; color: var(--ink-soft); }
.mode label + label { border-left: 1px solid var(--line); }
.mode input { accent-color: var(--glacier); margin: 0; }
.mode label:has(input:checked) { background: var(--glacier-soft); color: var(--ink); font-weight: 600; }
.mode label:has(input:focus-visible) { outline: 2px solid var(--focus); outline-offset: -2px; }

/* --- backlog (issue #9) --- */
.backlog { padding: 0 clamp(16px, 4vw, 40px) 48px; display: grid; gap: 12px; }
.backlog-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.backlog-head .actions { margin-left: auto; }
.backlog-summary { margin: 0; color: var(--ink-soft); max-width: 90ch; }
.backlog-add { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px 10px; align-items: start; }
.backlog-add label { font-weight: 600; padding-top: 6px; }
.backlog-add textarea {
  font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 6px 10px; resize: vertical; min-height: 2.4em; width: 100%;
}
.backlog-add textarea:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
@media (max-width: 640px) {
  .backlog-add { grid-template-columns: minmax(0, 1fr); }
  .backlog-add label { padding-top: 0; }
  /* The shared mobile table rule keeps a 34px checkbox column; this table has none. */
  .backlog .table tr { grid-template-columns: minmax(0, 1fr); }
  .backlog .table td:empty { display: none; }
  .backlog .table td.c-size::before { content: "To copy: "; color: var(--ink-soft); }
}
.backlog .table td .meter { margin: 6px 0 4px; max-width: 28rem; }
.backlog .table td .meter > i { background: var(--pine); }
.c-state, .c-size { white-space: nowrap; }
.ch-state { font-size: 0.85rem; font-weight: 600; }
.ch-state.migrating { color: var(--glacier); }
.ch-state.done { color: var(--pine); }
.ch-state.pending, .ch-state.removed { color: var(--ink-soft); }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--glacier); font-weight: 600; cursor: pointer; text-align: left; }
.link:hover { text-decoration: underline; }
.link:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.v-meta .link { font-weight: 400; font-size: inherit; }
.bl-videos { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; max-height: 60vh; overflow: auto; }
.bl-video { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 10px; }
.item-state.queued, .item-state.pending { color: var(--glacier); }
.item-state.present, .item-state.skipped { color: var(--ink-soft); }
.ch-state.failed { color: var(--brick); }