:root {
  --bg: #f4f4f1; --panel: #ffffff; --ink: #1c1c1a; --muted: #5f5f58; --line: #deded6;
  --accent: #1f6fd1; --accent-ink: #ffffff; --good: #1d7a46; --bad: #b3261e; --warn: #9a5b00; --chip: #e8f1fd;
  --img-bg: #808080;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1a1a19; --panel: #232321; --ink: #ecebe6; --muted: #a6a59d; --line: #363531;
    --accent: #7aa8ff; --accent-ink: #10141c; --good: #5cc98a; --bad: #ff8a80; --warn: #ffb866; --chip: #1d2a40;
  }
}
:root[data-theme="dark"] {
  --bg: #1a1a19; --panel: #232321; --ink: #ecebe6; --muted: #a6a59d; --line: #363531;
  --accent: #7aa8ff; --accent-ink: #10141c; --good: #5cc98a; --bad: #ff8a80; --warn: #ffb866; --chip: #1d2a40;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
button { font: inherit; color: inherit; }
a { color: var(--accent); }
.hidden { display: none !important; }
.muted { color: var(--muted); }

/* top bar */
.top { display: flex; align-items: center; gap: 14px; padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.top h1 { font-size: 16px; margin: 0; font-weight: 650; }
.top .grow { flex: 1; }
.top .stat { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 14px; }
.top .stat b { color: var(--ink); }
.linkbtn { background: none; border: 1px solid var(--line); border-radius: 6px; padding: 3px 10px; cursor: pointer; }
.linkbtn:hover { border-color: var(--accent); }

/* annotate */
main.annot { max-width: 1700px; margin: 0 auto; padding: 10px 16px 120px; }
.banner { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; margin: 4px 0 10px; }
.badge { font-size: 13px; font-weight: 600; padding: 2px 10px; border-radius: 99px; background: var(--chip); color: var(--accent); }
.badge.revisit { background: transparent; border: 1px solid var(--warn); color: var(--warn); }
.banner .what { color: var(--muted); font-size: 14px; }
.pairs { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px 14px; }
.pairs.single { grid-template-columns: minmax(0, 1fr); }
.col { min-width: 0; }
@media (max-width: 700px) { .pairs { grid-template-columns: minmax(0, 1fr); } }
.col h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 4px; font-weight: 600; }
.view { background: var(--img-bg); border-radius: 6px; display: flex; justify-content: center; align-items: center; overflow: hidden; }
.view img { display: block; max-width: 100%; object-fit: contain; image-rendering: auto; }
.view.big img { height: min(30vh, 300px); }
.view.wide img { height: min(20vh, 210px); }
.sub { font-size: 12px; color: var(--muted); margin: 2px 0 6px; }
.strip { overflow-x: auto; background: var(--panel); border-radius: 6px; padding: 4px; }
.strip img { display: block; height: min(12vh, 117px); max-width: none; }
.legend { font-size: 12px; color: var(--muted); }
.legend .sw { display: inline-block; width: 10px; height: 10px; border: 2px solid #1f6fd1; vertical-align: -1px; margin-right: 3px; }
.legend .sy { display: inline-block; width: 10px; height: 10px; border: 1px solid #ffdc00; background: #555; vertical-align: -1px; margin: 0 3px 0 10px; }

/* verdict bar */
.bar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--panel); border-top: 1px solid var(--line); padding: 10px 16px; }
.bar .inner { max-width: 1700px; margin: 0 auto; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.vbtn { border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 8px 14px; cursor: pointer; min-width: 120px; text-align: left; }
.vbtn kbd { display: inline-block; min-width: 20px; text-align: center; font: 600 12px/18px ui-monospace, monospace; border: 1px solid var(--line); border-radius: 4px; margin-right: 6px; background: var(--panel); }
.vbtn:hover { border-color: var(--accent); }
.vbtn.on { outline: 2px solid var(--accent); }
.vbtn.good { color: var(--good); } .vbtn.bad { color: var(--bad); } .vbtn.wrong { color: var(--warn); }
.should { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.note { flex: 1; min-width: 220px; }
.note input { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: inherit; }
.nav { display: flex; gap: 6px; }
.toast { position: fixed; right: 16px; bottom: 80px; background: var(--ink); color: var(--bg); padding: 6px 12px; border-radius: 6px; font-size: 13px; opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: .92; }
.done { text-align: center; padding: 80px 16px; }
.done h2 { font-size: 22px; }

/* help */
.help { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; z-index: 10; }
.help .box { background: var(--panel); border-radius: 10px; max-width: 820px; width: 100%; padding: 18px 22px; }
.help h3 { margin: 14px 0 4px; font-size: 15px; }
.help dl { margin: 4px 0; } .help dt { font-weight: 600; } .help dd { margin: 0 0 6px 16px; color: var(--muted); }
.help table { border-collapse: collapse; } .help td { padding: 2px 10px 2px 0; vertical-align: top; }

/* login */
.login { max-width: 360px; margin: 12vh auto; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.login h1 { font-size: 20px; margin: 0 0 14px; }
.login label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
.login input { width: 100%; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: inherit; }
.login button { margin-top: 16px; width: 100%; padding: 10px; border: 0; border-radius: 8px; background: var(--accent); color: var(--accent-ink); font-weight: 600; cursor: pointer; }
.login .err { color: var(--bad); min-height: 20px; margin-top: 8px; font-size: 14px; }

/* admin */
main.admin { max-width: 1400px; margin: 0 auto; padding: 16px 16px 64px; }
.admin h2 { font-size: 18px; margin: 26px 0 8px; }
.tbl { overflow-x: auto; }
.tbl table { border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 14px; }
.tbl th, .tbl td { padding: 4px 10px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
.tbl th:first-child, .tbl td:first-child, .tbl td.l, .tbl th.l { text-align: left; }
.tbl th { color: var(--muted); font-weight: 600; font-size: 12.5px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 8px 0; }
.filters select { padding: 5px 8px; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); font: inherit; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px; margin: 10px 0; }
.card header { display: flex; gap: 10px; flex-wrap: wrap; font-size: 13.5px; align-items: baseline; margin-bottom: 6px; }
.card .pair { display: flex; gap: 8px; flex-wrap: wrap; }
.card .pair img { height: 170px; max-width: 100%; border-radius: 5px; background: var(--img-bg); }
.card .strip img { height: 90px; }
.card .reason { font-size: 12.5px; color: var(--muted); margin: 6px 0 0; }
.card .notetext { margin: 6px 0 0; font-size: 14px; }