:root {
  --ink: #1c1a17;
  --paper: #f7f4ee;
  --paper-2: #fffdf8;
  --line: #e3ddd0;
  --muted: #8a8577;
  --accent: #b4532a;
  --new: #2e7d32;
  --gone: #9a9384;
  --move: #1565c0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.5 -apple-system, "PingFang SC", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
.muted { color: var(--muted); font-weight: 400; }

/* login */
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 36px 32px; width: 320px; text-align: center;
  box-shadow: 0 8px 30px rgba(40, 30, 20, 0.08);
}
.login-card h1 { margin: 0 0 4px; letter-spacing: .5px; }
.login-card input, .login-card button {
  width: 100%; padding: 11px 12px; margin-top: 14px; border-radius: 8px;
  border: 1px solid var(--line); font-size: 15px;
}
.login-card button { background: var(--ink); color: var(--paper); border: 0; cursor: pointer; }
.login-card button:hover { background: #000; }
.err { color: var(--accent); margin: 12px 0 0; }

/* shell */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--line); background: var(--paper-2);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-size: 18px; font-weight: 700; letter-spacing: .3px; }
.topbar nav { display: flex; gap: 6px; align-items: center; }
.tab, .ghost {
  border: 1px solid transparent; background: transparent; color: var(--ink);
  padding: 7px 14px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.tab:hover { background: #ece7dd; }
.tab.active { background: var(--ink); color: var(--paper); }
.ghost { color: var(--muted); }
.ghost:hover { color: var(--accent); }

main { padding: 22px; max-width: 1200px; margin: 0 auto; }
.controls { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.controls label { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 5px; }
.controls select, .controls input[type=number] { padding: 6px 8px; border-radius: 7px; border: 1px solid var(--line); background: var(--paper-2); font-size: 13px; }
.controls input[type=number] { width: 92px; }
.controls .chk { cursor: pointer; }

/* 300-word summary card */
.summary {
  background: var(--paper-2); border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 14px 16px; margin-bottom: 16px; line-height: 1.7;
  white-space: pre-wrap; color: var(--ink);
}

/* report table marking */
.report-tbl .mark {
  padding: 3px 10px; border: 1px solid var(--line); border-radius: 6px; cursor: pointer;
  background: var(--paper); color: var(--muted); font-size: 12px;
}
.report-tbl .mark:hover { border-color: var(--accent); color: var(--accent); }
.report-tbl tr.lq td { opacity: 0.45; text-decoration: line-through; }
.report-tbl tr.lq td:last-child { opacity: 1; text-decoration: none; }
.report-tbl tr.lq .mark { color: var(--new); border-color: var(--new); text-decoration: none; }
.section-h { margin: 26px 0 10px; font-size: 15px; }
.section-h.new { color: var(--new); }
.section-h.gone { color: var(--gone); }
.section-h.move { color: var(--move); }

/* tables */
table { width: 100%; border-collapse: collapse; background: var(--paper-2); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #efe9df; font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fbf8f1; }
td:first-child { color: var(--muted); white-space: nowrap; }

.diff-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
@media (max-width: 900px) { .diff-cols { grid-template-columns: 1fr; } }

/* config cards */
.card {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; margin-bottom: 12px;
}
.card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.card label, .setting { display: block; margin: 7px 0; font-size: 13px; color: var(--muted); }
.card input[type=text], .card input[type=number], .setting .v {
  width: 100%; padding: 7px 9px; border: 1px solid var(--line); border-radius: 7px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; color: var(--ink); background: #fff;
}
.switch { display: inline-flex; align-items: center; gap: 5px; margin-left: auto; }
.card .save, .setting button {
  margin-top: 8px; padding: 6px 16px; border: 0; border-radius: 7px;
  background: var(--ink); color: var(--paper); cursor: pointer; font-size: 13px;
}
.card .save:hover, .setting button:hover { background: #000; }
.setting { display: flex; align-items: center; gap: 10px; }
.setting .k { min-width: 160px; font-family: ui-monospace, monospace; color: var(--ink); }
.cfgdump {
  background: #2b2722; color: #ece4d6; padding: 12px; border-radius: 8px;
  font-size: 12px; overflow: auto;
}