:root {
  --bg: #EDF0EF; --panel: #F8FAF9; --ink: #142027; --soft: #4A5A61; --line: #CBD5D3;
  --bronze: #A85B18; --verdigris: #2B746B; --frame: #DCE3E1; --danger: #A3302A; --ok: #2B746B; --warn: #A85B18;
  --display: 'Noto Serif TC', 'Songti TC', Georgia, serif;
  --body: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1518; --panel: #152024; --ink: #E3EBEA; --soft: #9DB0B2; --line: #2A3A3F;
    --bronze: #E39A55; --verdigris: #63B5A9; --frame: #1C2A2F; --danger: #E57B72; --ok: #63B5A9; --warn: #E39A55;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0E1518; --panel: #152024; --ink: #E3EBEA; --soft: #9DB0B2; --line: #2A3A3F;
  --bronze: #E39A55; --verdigris: #63B5A9; --frame: #1C2A2F; --danger: #E57B72; --ok: #63B5A9; --warn: #E39A55;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 var(--body); }
a { color: var(--verdigris); }
code, .mono { font-family: var(--mono); font-size: .9em; }
.boot { padding: 40px; font-family: var(--display); font-size: 22px; color: var(--soft); }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
nav.side { background: var(--panel); border-right: 1px solid var(--line); padding: 18px 12px; display: flex; flex-direction: column; gap: 2px; }
nav.side .brand { font-family: var(--display); font-weight: 900; font-size: 20px; padding: 4px 10px 14px; display: flex; gap: 8px; align-items: center; }
nav.side .brand svg { width: 20px; height: 20px; }
nav.side a { display: block; padding: 7px 10px; border-radius: 6px; color: var(--ink); text-decoration: none; }
nav.side a:hover { background: var(--frame); }
nav.side a.on { background: var(--frame); color: var(--verdigris); font-weight: 600; }
nav.side .sep { height: 1px; background: var(--line); margin: 10px 4px; }
nav.side .foot { margin-top: auto; font-size: 13px; color: var(--soft); padding: 10px; display: grid; gap: 8px; }
nav.side select { width: 100%; }
main { padding: 26px 32px 60px; max-width: 1180px; width: 100%; }
h1 { font-family: var(--display); font-weight: 900; font-size: 26px; margin: 0 0 4px; }
h2 { font-family: var(--display); font-size: 18px; margin: 28px 0 10px; }
.sub { color: var(--soft); margin: 0 0 20px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.stat .k { color: var(--soft); font-size: 13px; }
.stat .v { font-family: var(--display); font-size: 24px; font-weight: 900; }

table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--soft); background: var(--frame); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { color: var(--soft); padding: 18px; text-align: center; }
.tablewrap { overflow-x: auto; }

button, .btn { font: inherit; border: 1px solid var(--line); background: var(--panel); color: var(--ink); padding: 7px 14px; border-radius: 7px; cursor: pointer; text-decoration: none; display: inline-block; }
button:hover, .btn:hover { border-color: var(--soft); }
button.primary, .btn.primary { background: var(--verdigris); border-color: var(--verdigris); color: var(--panel); font-weight: 600; }
button.danger { color: var(--danger); }
button.small { padding: 3px 9px; font-size: 13px; }
button:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 7px; padding: 7px 10px; }
textarea { width: 100%; min-height: 120px; font-family: var(--mono); font-size: 13px; }
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--verdigris); outline-offset: 1px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--soft); }
label > input, label > select { color: var(--ink); font-size: 15px; }
form.stack { display: grid; gap: 12px; }
form.inline { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }
.check { display: flex; gap: 6px; align-items: center; color: var(--ink); font-size: 14px; }

.pill { display: inline-block; padding: 1px 8px; border-radius: 99px; font-size: 12px; font-weight: 600; border: 1px solid currentColor; white-space: nowrap; }
.pill.OPEN, .pill.succeeded, .pill.delivered, .pill.active, .pill.valid { color: var(--ok); }
.pill.CLEARED { color: var(--soft); }
.pill.GENERATING, .pill.VALIDATING, .pill.queued, .pill.running, .pill.pending, .pill.sending { color: var(--bronze); }
.pill.HUMAN_REVIEW, .pill.past_due { color: var(--warn); }
.pill.FAILED, .pill.failed, .pill.canceled, .pill.revoked, .pill.invalid, .pill.suspended { color: var(--danger); }
.pill.MEMORIAL { color: var(--soft); font-style: italic; }

.auth { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth .card { width: 100%; max-width: 400px; padding: 28px; }
.auth h1 { margin-bottom: 18px; }
.note { background: var(--frame); border-radius: 8px; padding: 10px 14px; font-size: 14px; }
.note.warn { border-left: 3px solid var(--bronze); }
.secret { font-family: var(--mono); background: var(--frame); padding: 10px 12px; border-radius: 7px; word-break: break-all; user-select: all; }
.err { color: var(--danger); font-size: 14px; min-height: 1em; }
pre { background: var(--frame); padding: 12px; border-radius: 8px; overflow: auto; font: 12.5px/1.5 var(--mono); max-height: 460px; }
#toast { position: fixed; bottom: 20px; right: 20px; display: grid; gap: 8px; z-index: 9; }
#toast div { background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 8px; max-width: 420px; box-shadow: 0 4px 16px rgba(0,0,0,.2); }
#toast div.bad { background: var(--danger); color: #fff; }
dialog { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--ink); padding: 22px; width: min(560px, 92vw); }
dialog::backdrop { background: rgba(10, 16, 18, .45); }
.bands { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.band a.mono { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.band { border: 1px solid var(--line); border-radius: 9px; padding: 12px; background: var(--panel); display: grid; gap: 6px; }
.band .n { font-family: var(--display); font-weight: 900; font-size: 18px; }
.band.next { border-style: dashed; }
.muted { color: var(--soft); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 18px 0 14px; }
.tabs a { padding: 8px 12px; text-decoration: none; color: var(--soft); border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--ink); border-color: var(--verdigris); }
.menu-btn { display: none; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  nav.side { display: none; position: fixed; inset: 0 30% 0 0; z-index: 5; }
  nav.side.open { display: flex; }
  .menu-btn { display: inline-block; margin-bottom: 12px; }
  main { padding: 16px; }
}