:root {
  --bg: #f4f5f7; --card: #ffffff; --text: #1f2937; --muted: #6b7280; --line: #e5e7eb;
  --primary: #2563eb; --primary-text: #ffffff; --danger: #dc2626; --ok: #16a34a;
  --chip: #eef2ff; --chip-text: #3730a3; --input: #ffffff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a; --card: #1e293b; --text: #e5e7eb; --muted: #94a3b8; --line: #334155;
    --primary: #3b82f6; --primary-text: #ffffff; --danger: #f87171; --ok: #4ade80;
    --chip: #312e81; --chip-text: #e0e7ff; --input: #0f172a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.8 Vazirmatn, "Vazir", Tahoma, "Segoe UI", sans-serif;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
a { color: var(--primary); text-decoration: none; }
.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px;
  background: var(--card); border-bottom: 1px solid var(--line);
  padding: calc(10px + env(safe-area-inset-top, 0px)) 16px 10px;
}
.brand { font-weight: 800; font-size: 18px; color: var(--text); }
.crumbs { flex: 1; color: var(--muted); font-size: 14px; overflow-x: auto; white-space: nowrap; }
.crumbs a { color: var(--muted); }
.crumbs span.sep { margin: 0 6px; }
.container { max-width: 1000px; margin: 0 auto; padding: 16px; }
h1 { font-size: 22px; margin: 4px 0 12px; }
h2 { font-size: 17px; margin: 0 0 10px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px; margin-bottom: 14px;
}
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.list-item { display: block; color: var(--text); }
.list-item:hover { border-color: var(--primary); }
.muted { color: var(--muted); font-size: 14px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.space { justify-content: space-between; }
label { display: block; font-size: 14px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--input); color: var(--text); font: inherit;
}
input[dir="ltr"] { text-align: left; }
.form-grid { display: grid; gap: 0 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 0; border-radius: 10px;
  padding: 8px 14px; font: inherit; cursor: pointer; background: var(--primary); color: var(--primary-text);
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--line); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .6; cursor: default; }
.chip {
  display: inline-block; padding: 1px 10px; border-radius: 999px; font-size: 12px;
  background: var(--chip); color: var(--chip-text);
}
.stats { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); margin-top: 10px; }
.stat { background: var(--bg); border-radius: 10px; padding: 8px 10px; }
.stat b { display: block; font-size: 18px; }
.stat span { font-size: 12px; color: var(--muted); }
.big-stats .stat b { font-size: 24px; }
.links { margin-top: 10px; display: grid; gap: 6px; }
.link-row {
  display: flex; gap: 8px; align-items: center; background: var(--bg); border-radius: 10px;
  padding: 6px 10px; font-size: 13px; overflow: hidden;
}
.link-row code { flex: 1; direction: ltr; text-align: left; overflow-x: auto; white-space: nowrap; }
.checklist { max-height: 220px; overflow-y: auto; border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; }
.checklist label { display: flex; gap: 8px; align-items: center; color: var(--text); margin: 4px 0; }
.checklist input { width: auto; }
.error { color: var(--danger); }
.toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  background: #111827; color: #fff; padding: 10px 18px; border-radius: 10px; z-index: 50; font-size: 14px;
}
.toast.bad { background: var(--danger); }
.login { max-width: 360px; margin: 60px auto; }
.empty { text-align: center; color: var(--muted); padding: 20px; }