/* CodecArena-Benchv2 — dark theme tuned for image inspection */
* { box-sizing: border-box; }
:root {
  --bg: #16181d; --panel: #1f2329; --panel2: #262b33; --line: #343a45;
  --fg: #e7eaf0; --muted: #9aa3b2; --accent: #4c8dff; --warn: #ffb454;
  --good: #3fb950;
}
html, body { margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.65 -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif; }
h1 { font-size: 1.5rem; } h2 { font-size: 1.1rem; }
a { color: var(--accent); }
kbd { background: var(--panel2); border: 1px solid var(--line); border-radius: 4px;
  padding: 0 5px; font-size: .85em; }
code { background: var(--panel2); padding: 0 5px; border-radius: 4px; }
.muted { color: var(--muted); font-size: .9em; }
.center { display: flex; justify-content: center; padding-top: 8vh; }

.page { max-width: 880px; margin: 0 auto; padding: 24px 20px 60px; }
.lead { font-size: 1.05em; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 20px; margin: 16px 0; }
.card.warn { border-color: var(--warn); }
.card.warn h2 { color: var(--warn); margin-top: 0; }
.card ul, .card ol { padding-left: 1.4em; }
.card.start { display: flex; flex-direction: column; gap: 10px; }
.card.start input { background: var(--panel2); border: 1px solid var(--line);
  color: var(--fg); border-radius: 8px; padding: 10px 12px; font-size: 1em; }

.btn { display: inline-block; background: var(--panel2); color: var(--fg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 16px;
  text-decoration: none; cursor: pointer; font-size: .95em; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:disabled { opacity: .45; cursor: not-allowed; }
.btn.small { padding: 4px 10px; font-size: .85em; }

table.batches { width: 100%; border-collapse: collapse; }
table.batches th, table.batches td { border-bottom: 1px solid var(--line);
  padding: 8px 10px; text-align: left; }

/* ---------- rank page ---------- */
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center;
  justify-content: space-between; gap: 12px; background: var(--panel);
  border-bottom: 1px solid var(--line); padding: 8px 16px; }
.badge { background: var(--accent); color: #fff; border-radius: 6px; padding: 2px 8px;
  font-size: .85em; }
.group-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.group-nav button { width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--panel2); color: var(--fg);
  cursor: pointer; font-size: .85em; }
.group-nav button.done { border-color: var(--good); color: var(--good); }
.group-nav button.current { background: var(--accent); border-color: var(--accent); color: #fff; }

.hint-bar { text-align: center; padding: 6px 12px; color: var(--muted);
  font-size: .88em; background: #1a1d23; border-bottom: 1px solid var(--line); }

.ref-area { position: sticky; top: 47px; z-index: 20; background: var(--bg);
  padding: 8px 16px 4px; border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 12px rgba(0,0,0,.45); }
.candidates { padding: 10px 16px 90px; display: flex; flex-direction: column; gap: 8px; }

.row { display: flex; align-items: stretch; gap: 8px; }
.row-side { display: flex; align-items: center; gap: 6px; min-width: 96px; }
.ref-row .row-side { justify-content: flex-end; }
.cand-row { background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 6px; cursor: grab; user-select: none; -webkit-user-select: none;
  touch-action: none; /* required: lets pointermove drive drag on touch */ }
.cand-row.dragging { opacity: .35; }
.cand-row.drag-ghost { position: fixed; pointer-events: none; z-index: 50;
  width: calc(100% - 32px); left: 16px; opacity: .92; cursor: grabbing;
  box-shadow: 0 12px 28px rgba(0,0,0,.6); border-color: var(--accent); }
.handle { color: var(--muted); font-size: 1.2em; padding: 0 4px; cursor: grab; }
.pos { width: 30px; height: 30px; border-radius: 8px; background: var(--panel2);
  border: 1px solid var(--line); display: flex; align-items: center;
  justify-content: center; font-weight: 700; }
.pos.p1 { border-color: var(--good); color: var(--good); }
.pos.p8 { border-color: #e5534b; color: #e5534b; }
.chip { width: 30px; height: 30px; border-radius: 50%; background: var(--panel2);
  border: 1px solid var(--line); display: flex; align-items: center;
  justify-content: center; font-weight: 700; color: var(--muted); }
.ref-chip { width: auto; height: auto; border-radius: 8px; padding: 2px 8px;
  font-size: .78em; line-height: 1.3; text-align: center; color: var(--warn);
  border-color: var(--warn); }
.updown { display: flex; flex-direction: column; gap: 2px; }
.updown button { background: var(--panel2); border: 1px solid var(--line);
  color: var(--muted); border-radius: 5px; cursor: pointer; font-size: .7em;
  padding: 1px 6px; }
.updown button:hover { color: var(--fg); border-color: var(--accent); }

.strip-wrap { flex: 1; overflow: hidden; border-radius: 6px; }
.strip { display: block; width: 100%; height: auto; cursor: zoom-in;
  -webkit-user-drag: none; }

.bottombar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  display: flex; align-items: center; justify-content: flex-end; gap: 16px;
  background: var(--panel); border-top: 1px solid var(--line); padding: 10px 24px; }

/* ---------- zoom modal ---------- */
.hidden { display: none !important; }
.zoom-modal { position: fixed; inset: 0; z-index: 100; background: rgba(8,9,12,.96);
  display: flex; flex-direction: column; }
.zoom-head, .zoom-foot { display: flex; align-items: center; justify-content: center;
  gap: 16px; padding: 8px 16px; background: var(--panel); }
.zoom-head { border-bottom: 1px solid var(--line); justify-content: space-between; }
.zoom-foot { border-top: 1px solid var(--line); }
.zoom-stage { flex: 1; position: relative; overflow: hidden; cursor: grab;
  touch-action: none; }
.zoom-stage img { position: absolute; top: 0; left: 0; transform-origin: 0 0;
  image-rendering: auto; max-width: none; }
.zoom-flag { position: absolute; top: 14px; left: 14px; background: var(--warn);
  color: #000; font-weight: 700; border-radius: 6px; padding: 2px 10px; }