:root {
  --bg: #0f1419;
  --panel: #171d25;
  --line: #2a3441;
  --text: #e7eef7;
  --muted: #93a4b8;
  --accent: #3d8bfd;
  --danger: #ff4d6d;
  --ok: #3dd68c;
  --warn: #f5a524;
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--sans); }
body {
  background-image:
    radial-gradient(1200px 500px at 10% -10%, rgba(61,139,253,.12), transparent 60%),
    radial-gradient(900px 400px at 90% 0%, rgba(255,77,109,.08), transparent 55%);
}

.app { max-width: 1280px; margin: 0 auto; padding: 20px 18px 48px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 16px; }
.topbar h1 { margin: 0 0 4px; font-size: 1.45rem; letter-spacing: .02em; }
.sub { margin: 0; color: var(--muted); font-size: .9rem; }
.top-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.panel {
  background: color-mix(in srgb, var(--panel) 92%, black);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.panel h2 { margin: 0 0 12px; font-size: 1rem; display: flex; align-items: center; gap: 8px; }
.p0 {
  font-size: .7rem; padding: 2px 6px; border-radius: 999px;
  background: rgba(255,77,109,.15); color: var(--danger); border: 1px solid rgba(255,77,109,.35);
}

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 10px; }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 110px; }
.field.grow { flex: 1; min-width: 180px; }
.field span { color: var(--muted); font-size: .78rem; }
input, select, button, textarea {
  font: inherit; color: var(--text);
  background: #0c1016; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px;
}
input:focus, select:focus { outline: 1px solid color-mix(in srgb, var(--accent) 60%, white); }

.btn {
  cursor: pointer; border-radius: 10px; border: 1px solid var(--line);
  background: #1b2430; padding: 8px 12px; white-space: nowrap;
}
.btn:hover { border-color: #3a4a5e; }
.btn.primary { background: linear-gradient(180deg, #3d8bfd, #2f6fd0); border-color: #4a90ff; }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.badge {
  font-size: .78rem; padding: 4px 8px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted);
}
.badge.ok { color: var(--ok); border-color: rgba(61,214,140,.4); }
.badge.bad { color: var(--danger); border-color: rgba(255,77,109,.4); }

.hint { color: var(--muted); font-size: .85rem; margin: 6px 0 0; }
.workspace { display: grid; grid-template-columns: 1.05fr .95fr; gap: 14px; }
@media (max-width: 980px) { .workspace { grid-template-columns: 1fr; } }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--muted); cursor: pointer;
  border-radius: 999px; padding: 6px 10px; font-size: .85rem;
}
.tab.active { color: var(--text); border-color: var(--line); background: #121821; }
.tab-body.hidden { display: none; }

.drop {
  border: 1px dashed #3a4a5e; border-radius: 12px; padding: 18px; text-align: center;
  color: var(--muted); margin-bottom: 10px; position: relative;
}
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.verdict {
  border-radius: 12px; padding: 16px; border: 1px solid var(--line); min-height: 110px;
  background: #10161e;
}
.verdict.empty { color: var(--muted); }
.verdict.display_anomaly, .verdict.ledger_anomaly, .verdict.server_anomaly {
  border-color: rgba(255,77,109,.55);
  box-shadow: inset 0 0 0 1px rgba(255,77,109,.15);
}
.verdict.consistent { border-color: rgba(61,214,140,.45); }
.verdict.insufficient_evidence { border-color: rgba(245,165,36,.45); }
.v-label { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; letter-spacing: .03em; }
.v-summary { color: var(--muted); line-height: 1.45; }

.divergence {
  margin-top: 12px; padding: 12px; border-radius: 10px;
  background: rgba(255,77,109,.08); border: 1px solid rgba(255,77,109,.35);
}
.divergence strong { color: var(--danger); }
.meta-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px; margin-top: 12px; font-size: .82rem; color: var(--muted);
}
.meta-grid b { color: var(--text); font-weight: 600; display: block; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.code {
  margin: 0; max-height: 320px; overflow: auto; font-family: var(--mono); font-size: .75rem;
  background: #0b0f14; border: 1px solid var(--line); border-radius: 10px; padding: 10px; white-space: pre-wrap;
}

.case-list { display: flex; flex-direction: column; gap: 8px; }
.case-item {
  display: flex; justify-content: space-between; gap: 10px; align-items: center;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: #10161e;
}
.case-item .left { display: flex; flex-direction: column; gap: 2px; }
.case-item code { font-family: var(--mono); font-size: .8rem; }
.case-actions { display: flex; gap: 6px; }

.footer {
  display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .8rem; margin-top: 8px;
}
.footer a { color: var(--accent); }

.steps { margin: 0; padding-left: 1.2rem; color: var(--muted); line-height: 1.55; }
.steps b { color: var(--text); }
.steps a { color: var(--accent); }
.ready-banner {
  margin: 12px 0 0; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: #10161e; color: var(--muted);
}
.ready-banner.ok { border-color: rgba(61,214,140,.45); color: var(--ok); }
.ready-banner.bad { border-color: rgba(255,77,109,.45); color: var(--danger); }
.auth-panel.collapsed h2 { display: flex; justify-content: space-between; align-items: center; }
.btn.tiny { padding: 4px 8px; font-size: .78rem; }
.toast {
  position: fixed; right: 16px; bottom: 16px; z-index: 50;
  background: #152033; border: 1px solid var(--line); color: var(--text);
  padding: 10px 14px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.35);
  max-width: min(420px, calc(100vw - 24px));
}
.toast.bad { border-color: rgba(255,77,109,.5); color: #ffb3c0; }
.toast.hidden { display: none; }

.rules {
  margin-top: 10px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: #10161e; font-size: .82rem; color: var(--muted);
}
.rules code { color: var(--accent); }
.rules.hidden { display: none; }

.timeline { display: flex; flex-direction: column; gap: 8px; max-height: 360px; overflow: auto; }
.tl-item {
  display: grid; grid-template-columns: 88px 1fr; gap: 10px; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 10px; background: #10161e; font-size: .82rem;
}
.tl-track {
  font-weight: 700; text-transform: uppercase; letter-spacing: .04em; font-size: .72rem;
  padding-top: 2px;
}
.tl-track.server { color: #6cb6ff; }
.tl-track.screen { color: #f5a524; }
.tl-track.ledger { color: #3dd68c; }
.tl-track.align { color: #ff4d6d; }
.tl-item.divergence { border-color: rgba(255,77,109,.5); box-shadow: inset 3px 0 0 var(--danger); }
.tl-body { color: var(--muted); }
.tl-body strong { color: var(--text); }
.conf-high { color: var(--ok); }
.conf-medium { color: var(--warn); }
.conf-low { color: var(--danger); }

dialog {
  border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--text);
  padding: 0; max-width: 520px; width: calc(100% - 24px);
}
dialog::backdrop { background: rgba(0,0,0,.55); }
.legal { padding: 18px; }
.legal menu { display: flex; justify-content: flex-end; gap: 8px; padding: 0; margin: 14px 0 0; }
.legal ul { padding-left: 1.1rem; line-height: 1.5; color: var(--muted); }