:root {
  --bg: #f6f8fa; --card: #fff; --ink: #101828; --muted: #667085;
  --line: #d0d5dd; --brand: #05445e; --ok: #0a7d33; --warn: #b54708; --err: #b42318;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419; --card: #171d24; --ink: #e6e9ee; --muted: #98a2b3;
    --line: #2b333d; --brand: #7fd1e8; --ok: #4ade80; --warn: #fdba74; --err: #fca5a5;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Noto Sans TC", sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}
header { padding: 18px 16px 6px; }
h1 { margin: 0; font-size: 20px; }
h2 { font-size: 15px; margin: 22px 0 8px; }
.sub { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.tabs { display: flex; gap: 6px; padding: 10px 16px; position: sticky; top: 0; background: var(--bg); z-index: 5; }
.tabs button {
  flex: 1; padding: 8px 4px; font: inherit; font-size: 14px; cursor: pointer;
  background: transparent; color: var(--muted); border: 0; border-bottom: 2px solid transparent;
}
.tabs button.on { color: var(--ink); border-bottom-color: var(--brand); font-weight: 600; }

main { padding: 4px 16px 40px; max-width: 640px; margin: 0 auto; }

.list { display: grid; gap: 10px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
}
.card h3 { margin: 0 0 2px; font-size: 16px; }
.card .meta { color: var(--muted); font-size: 13px; }
.card .code { font-family: ui-monospace, monospace; letter-spacing: .04em; font-size: 14px; }
.card .row { margin-top: 10px; }

.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.pill.soon { background: color-mix(in srgb, var(--warn) 16%, transparent); color: var(--warn); }
.pill.urgent { background: color-mix(in srgb, var(--err) 16%, transparent); color: var(--err); }
.pill.calm { background: color-mix(in srgb, var(--ok) 16%, transparent); color: var(--ok); }
.pill.dead { background: color-mix(in srgb, var(--muted) 18%, transparent); color: var(--muted); }

.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
button, .shoot span, a.btn {
  font: inherit; font-size: 15px; padding: 9px 14px; border-radius: 9px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer;
}
button.primary, .shoot span { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
@media (prefers-color-scheme: dark) { button.primary, .shoot span { color: #06121a; } }
button:disabled { opacity: .5; cursor: default; }

.shoot { display: block; margin: 8px 0; }
.shoot span { display: block; text-align: center; padding: 22px; }

label { display: block; margin: 12px 0; font-size: 14px; color: var(--muted); }
input, select, textarea {
  display: block; width: 100%; margin-top: 4px; padding: 9px 11px; font: inherit; font-size: 16px;
  background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 9px;
}
textarea { resize: vertical; }
small { color: var(--muted); font-size: 12px; }

.hint { color: var(--muted); font-size: 13px; margin: 4px 0; }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }
.note { padding: 9px 12px; border-radius: 9px; background: var(--card); border: 1px solid var(--line); font-size: 14px; }
.note.err { color: var(--err); border-color: color-mix(in srgb, var(--err) 40%, var(--line)); }
.ok { color: var(--ok); font-size: 14px; margin-left: 8px; }
code { font-family: ui-monospace, monospace; font-size: 13px; }
a { color: var(--brand); }