:root {
  --ink: #0f1b2d;
  --ink-2: #26364f;
  --muted: #5d6c85;
  --paper: #eef2f8;
  --card: #ffffff;
  --line: #d6deeb;
  --indigo: #3b4cca;
  --indigo-2: #2b39a6;
  --green: #0b7d57;
  --green-bg: #e3f6ee;
  --red: #b4283a;
  --red-bg: #fde8eb;
  --gold: #ffd166;
  --gold-ink: #4a3600;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 100% -10%, #dfe6fb 0%, transparent 60%),
    radial-gradient(700px 360px at -10% 0%, #fff1cc 0%, transparent 55%),
    var(--paper);
  min-height: 100vh;
}

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 8px; }

h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.05rem; margin-bottom: 12px; color: var(--indigo-2); }
h3 { font-size: 0.92rem; }

.top {
  display: grid;
  grid-template-columns: auto minmax(200px, 320px) 1fr;
  gap: 16px 28px;
  align-items: center;
  padding: 14px clamp(14px, 3vw, 32px);
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 6px 24px rgba(15, 27, 45, 0.28);
}
.brand { display: flex; align-items: center; gap: 12px; }
.mark { width: 36px; height: 36px; color: var(--gold); }
.tag { margin: 2px 0 0; color: #b5c2db; font-size: 0.82rem; }
.judge { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

.field { display: grid; gap: 4px; font-size: 0.78rem; color: var(--muted); }
.top .field { color: #b5c2db; }

select, input[type="password"] {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  min-height: 44px;
  font: inherit;
  width: 100%;
}

.btn {
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(15, 27, 45, 0.18); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { background: var(--indigo); border-color: var(--indigo); color: #fff; }
.btn.gold { background: var(--gold); border-color: var(--gold); color: var(--gold-ink); }
.btn.ghost { background: transparent; }
.top .btn.ghost { color: #fff; border-color: #4a5d80; }

:focus-visible { outline: 3px solid #ff9f1c; outline-offset: 2px; }

.result {
  margin: 16px clamp(14px, 3vw, 32px) 0;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--green);
  background: var(--green-bg);
  color: #0a4a35;
}
.result[hidden] { display: none; }
.result.warn { border-color: var(--red); background: var(--red-bg); color: #6c1420; }

.board {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.25fr) minmax(280px, 1fr);
  gap: 16px;
  padding: 18px clamp(14px, 3vw, 32px) 28px;
  align-items: start;
}
.col { display: grid; gap: 16px; align-content: start; min-width: 0; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 8px 24px rgba(15, 27, 45, 0.07);
  min-width: 0;
}

.case-title { margin: 0 0 4px; font-size: 1.15rem; font-weight: 700; }
.case-brief { margin: 0 0 12px; color: var(--ink-2); }
.hint-line { margin: 0 0 10px; color: var(--muted); font-size: 0.85rem; }

table { border-collapse: collapse; width: 100%; font-size: 0.86rem; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; }
.num { text-align: right; font-family: var(--mono); }
.state { font-family: var(--mono); font-size: 0.78rem; padding: 2px 8px; border-radius: 999px; background: #e8ecf6; }
.state.RELEASED { background: var(--green-bg); color: var(--green); }
.state.DISPUTED { background: var(--red-bg); color: var(--red); }
.state.SETTLED_PARTIAL { background: #fff1cc; color: #7a5300; }
.state.REFUNDED { background: #e3ecff; color: var(--indigo-2); }

.claim { margin: 12px 0 0; padding: 10px 14px; border-left: 4px solid var(--red); background: var(--red-bg); border-radius: 0 10px 10px 0; font-size: 0.9rem; }

.agents { display: grid; gap: 10px; }
.agent {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: #f8faff;
}
.agent.done { border-color: var(--indigo); background: #f1f3ff; }
.agent-name { font-weight: 700; }
.agent-role { color: var(--muted); font-size: 0.82rem; margin-bottom: 6px; }
.agent-body { font-size: 0.88rem; }
.kv { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dotted var(--line); padding: 2px 0; }
.kv b { font-family: var(--mono); font-weight: 600; }

.slider { display: grid; gap: 8px; font-size: 0.85rem; color: var(--ink-2); }
input[type="range"] { width: 100%; accent-color: var(--indigo); min-height: 44px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 8px 0 14px; }
.split div { padding: 10px 12px; border-radius: 12px; }
.split .cap { background: var(--green-bg); color: #0a4a35; }
.split .ref { background: #e3ecff; color: #1d2a7a; }
.split strong { display: block; font-family: var(--mono); font-size: 1.15rem; }

fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px 12px; margin: 0 0 14px; }
legend { color: var(--muted); padding: 0 6px; font-size: 0.82rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-height: 44px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
  cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--indigo); border-color: var(--indigo); color: #fff; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }

.table-wrap { overflow: auto; max-height: 420px; border: 1px solid var(--line); border-radius: 10px; }
.table-wrap[hidden], #ledger-grid[hidden] { display: none; }
.ledger-table { font-size: 0.78rem; min-width: 640px; }
.ledger-table thead th { position: sticky; top: 0; background: #f1f4fb; }
#ledger-grid { height: 420px; width: 100%; }

.score-total { font-size: 1.3rem; font-weight: 700; margin: 0 0 8px; }
.scores { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 0.88rem; }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.tab {
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}
.tab[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.payload-title { margin: 8px 0 6px; color: var(--ink-2); }
.code {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: #0f1b2d;
  color: #d6e2ff;
  font-family: var(--mono);
  font-size: 0.74rem;
  max-height: 300px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.live-status { font-family: var(--mono); font-size: 0.8rem; color: var(--green); margin: 10px 0 0; }

.log { margin: 0; padding-left: 18px; display: grid; gap: 8px; font-size: 0.86rem; }
.log .who { font-weight: 700; }
.log .buyer { color: var(--red); }
.log .seller { color: var(--indigo-2); }
.log time { color: var(--muted); font-family: var(--mono); font-size: 0.74rem; display: block; }

#latency-canvas { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 10px; background: #f8faff; margin-bottom: 8px; }

.foot { padding: 4px clamp(14px, 3vw, 32px) 30px; color: var(--muted); font-size: 0.8rem; max-width: 900px; }

@media (max-width: 1150px) {
  .top { grid-template-columns: 1fr; }
  .judge { justify-content: flex-start; }
  .board { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}