:root {
  --bg: #f3f5f8; --card: #ffffff; --ink: #1d2733; --muted: #6a7686; --line: #dfe4ea;
  --brand: #1f4e78; --brand-ink: #ffffff; --exc: #c2410c; --exc-bg: #fdeee4; --ok: #15803d; --ok-bg: #e7f6ec;
  --drop: #e9f0f8; --drop-line: #9db6d3; --err: #b42318;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c; --card: #1b2129; --ink: #e6ebf1; --muted: #98a3b1; --line: #2c3540;
    --brand: #4d8fd1; --brand-ink: #0c1117; --exc: #fb923c; --exc-bg: #3a2416; --ok: #4ade80; --ok-bg: #16301f;
    --drop: #18222e; --drop-line: #3d5a7a; --err: #f97066;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 "Segoe UI", Arial, sans-serif; }
[hidden] { display: none !important; }
.top { display: flex; align-items: center; gap: 14px; padding: 14px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
.logo { height: 38px; width: auto; }
.title { flex: 1; min-width: 0; }
.title h1 { margin: 0; font-size: 19px; }
.sync { margin: 2px 0 0; font-size: 13px; color: var(--muted); }
.sync.warn { color: var(--err); font-weight: 600; }
main { max-width: 1100px; margin: 0 auto; padding: 20px 16px 48px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.narrow { max-width: 380px; margin: 40px auto; }
h2 { margin: 0 0 6px; font-size: 18px; }
h3 { margin: 22px 0 8px; font-size: 15px; }
.muted { color: var(--muted); margin: 0; }
.err { color: var(--err); min-height: 1.2em; margin: 8px 0 0; }
input[type=password] { width: 100%; padding: 10px 12px; margin: 6px 0; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
button { font: inherit; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
button.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); font-weight: 600; }
button.big { padding: 12px 20px; font-size: 16px; }
button.ghost { background: transparent; }
button:disabled { opacity: .55; cursor: default; }
#loginForm button { width: 100%; margin-top: 6px; }

.drop { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 34px 16px; text-align: center;
  background: var(--drop); border: 2px dashed var(--drop-line); border-radius: 14px; cursor: pointer; }
.drop.over { border-color: var(--brand); background: var(--card); }
.drop-icon { font-size: 28px; color: var(--brand); }
.drop strong { font-size: 17px; }

#result { margin-top: 22px; }
.resHead { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.resHead h2 { word-break: break-all; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.stat span { display: block; font-size: 13px; color: var(--muted); }
.stat b { font-size: 24px; }
.stat small { display: block; color: var(--muted); font-size: 12px; }
.stat.exc b { color: var(--exc); }
.stat.ok b { color: var(--ok); }

.tbl { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--bg); font-weight: 600; white-space: nowrap; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
tr:last-child td { border-bottom: 0; }
#tblExc td:last-child { color: var(--exc); font-weight: 600; white-space: nowrap; }
details { margin-top: 18px; }
summary { cursor: pointer; font-weight: 600; padding: 6px 0; }

dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink); padding: 0; width: min(480px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0,0,0,.35); }
.dlg { padding: 20px; }
.dlg h3 { margin-top: 18px; }
.rules { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.keyout { font-family: Consolas, monospace; background: var(--bg); padding: 10px; border-radius: 8px; word-break: break-all; user-select: all; }
.dlgFoot { display: flex; justify-content: space-between; margin-top: 20px; }

@media (max-width: 640px) {
  .top { padding: 10px 16px; }
  .logo { height: 30px; }
  .stats { grid-template-columns: 1fr; }
  .resHead button { width: 100%; }
}