:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #101828;
  --muted: #5d6779;
  --line: #e1e4ea;
  --primary: #1d4ed8;
  --primary-text: #ffffff;
  --danger: #b42318;
  --warn: #b54708;
  --info: #175cd3;
  --ok: #067647;
  --violet: #6941c6;
  --chip-bg: #eef1f6;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --surface: #171c25;
    --text: #e8ebf1;
    --muted: #9aa4b5;
    --line: #2a3140;
    --primary: #5b8cff;
    --primary-text: #0b1020;
    --danger: #ff7a6b;
    --warn: #f7a24b;
    --info: #74a7ff;
    --ok: #4fd18b;
    --violet: #b79cff;
    --chip-bg: #222a37;
    --shadow: none;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}
a { color: var(--primary); }
h1 { font-size: 1.35rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 1.25rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; }
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.org { color: var(--muted); font-size: .9rem; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topnav { display: none; gap: 16px; }
.topnav a, .bottomnav a { text-decoration: none; color: var(--muted); }
.topnav a.active, .bottomnav a.active { color: var(--primary); font-weight: 600; }
.bottomnav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 10;
  display: flex; background: var(--surface); border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.bottomnav a { flex: 1; text-align: center; padding: 8px 0 10px; font-size: .78rem; }
.bottomnav .ico { display: block; font-size: 1.1rem; }
@media (min-width: 760px) {
  .topnav { display: flex; }
  .bottomnav { display: none !important; }
  body { padding-bottom: 24px; }
}
main { max-width: 860px; margin: 0 auto; padding: 16px; }
#banner { background: var(--danger); color: #fff; padding: 10px 16px; font-weight: 600; }
#banner a { color: #fff; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px; margin: 10px 0;
}
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.list { list-style: none; padding: 0; margin: 0; }
.item {
  display: flex; gap: 10px; align-items: flex-start; padding: 10px 2px; border-top: 1px solid var(--line);
  text-decoration: none; color: inherit;
}
.item:first-child { border-top: 0; }
.item .title { font-weight: 600; }
.item .sub { color: var(--muted); font-size: .88rem; }
.due { font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 600; }
.chip {
  display: inline-block; padding: 1px 8px; border-radius: 999px; background: var(--chip-bg);
  font-size: .78rem; color: var(--muted); white-space: nowrap;
}
.chip.overdue { color: var(--danger); }
.chip.thisMonth { color: var(--warn); }
.chip.nextMonth { color: var(--info); }
.chip.incomplete { color: var(--violet); }
.chip.ok { color: var(--ok); }
.chip.suggestion { color: var(--warn); }
.tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; margin: 8px 0; }
.tab {
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  padding: 6px 12px; border-radius: 999px; white-space: nowrap; cursor: pointer; font: inherit;
}
.tab.active { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.tab .count { opacity: .8; margin-left: 4px; }
.group-title { margin: 14px 0 2px; font-weight: 700; }
button, .btn {
  font: inherit; border-radius: 8px; border: 1px solid var(--line); background: var(--surface);
  color: var(--text); padding: 9px 14px; cursor: pointer; text-decoration: none; display: inline-block;
}
button.primary, .btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); font-weight: 600; }
button.danger { color: var(--danger); }
button:disabled { opacity: .55; cursor: default; }
button.link { border: 0; background: none; color: var(--primary); padding: 4px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
form .field { margin: 10px 0; }
label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 4px; }
label.inline { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; margin: 0 12px 6px 0; }
input[type=text], input[type=email], input[type=number], input[type=date], input[type=url], select, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px;
}
textarea { min-height: 70px; resize: vertical; }
.hint { color: var(--muted); font-size: .82rem; margin-top: 3px; }
.error { color: var(--danger); font-weight: 600; }
.notice { border-left: 4px solid var(--warn); padding: 8px 12px; background: var(--chip-bg); border-radius: 6px; margin: 10px 0; }
.months { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; }
.months label { font-weight: 400; display: flex; gap: 4px; align-items: center; margin: 0; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 6px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.search { margin: 8px 0; }
.file-list { margin: 8px 0; }
.file-row { display: flex; gap: 8px; align-items: center; padding: 6px 0; border-top: 1px solid var(--line); font-size: .9rem; }
.file-row select { width: auto; padding: 4px 6px; }
.progress { height: 6px; background: var(--chip-bg); border-radius: 3px; overflow: hidden; }
.progress > div { height: 100%; background: var(--primary); width: 0; transition: width .2s; }
#toast {
  position: fixed; left: 50%; bottom: calc(80px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; opacity: 0;
  pointer-events: none; transition: opacity .2s; max-width: calc(100% - 32px); z-index: 20;
}
#toast.show { opacity: 1; }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--text); width: min(560px, calc(100% - 24px)); padding: 16px; }
dialog::backdrop { background: rgba(0, 0, 0, .4); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
td, th { text-align: left; padding: 6px 4px; border-top: 1px solid var(--line); vertical-align: top; }
.disclaimer { color: var(--muted); font-size: .8rem; margin-top: 24px; }
.signin { max-width: 420px; margin: 10vh auto; text-align: center; }
.signin .gbtn { display: flex; justify-content: center; margin: 18px 0; }