body { min-height: 100vh; }
.shell { display: grid; grid-template-columns: 240px minmax(0, 1fr); max-width: 1180px; margin: 0 auto; }

.side {
  position: sticky; top: 0; align-self: start; height: 100vh;
  display: flex; flex-direction: column; gap: 2px;
  padding: 26px 18px 22px; border-right: 1px solid var(--rule-soft);
}
.side .brand { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.side .brand .mark { width: 28px; height: 28px; color: var(--amber); }
.side .brand b { display: block; font-size: 15px; }
.side .brand span { display: block; font-size: var(--fs-micro); color: var(--ink-3); }
.side a {
  display: block; padding: 8px 10px; border-radius: var(--r-sm);
  color: var(--ink-2); text-decoration: none; font-size: var(--fs-small); font-weight: 600;
}
.side a:hover { background: var(--graphite-2); color: var(--ink); }
.side a.on { background: var(--graphite-3); color: var(--ink); box-shadow: inset 2px 0 0 var(--amber); }
.side .btn { margin-top: 16px; }
.side-foot { margin-top: auto; font-size: 10.5px; line-height: 1.6; color: var(--ink-3); }
.side-foot b { color: var(--ink-2); }

main { padding: 26px 40px 120px; display: grid; gap: 48px; min-width: 0; }
section { display: grid; gap: 14px; scroll-margin-top: 20px; }
.sec-head h1 { margin: 0 0 6px; font-size: 22px; font-weight: 700; font-stretch: 92%; letter-spacing: -0.2px; }
.sec-head p { margin: 0; max-width: 680px; color: var(--ink-2); font-size: var(--fs-small); line-height: 1.6; }

.panel-card { display: grid; gap: 12px; padding: 16px 18px; border-radius: var(--r-lg); background: var(--graphite-2); border: 1px solid var(--rule-soft); }
.panel-card > b, .label-row > b { font-size: var(--fs-body); }
.panel-card .field + .field { margin-top: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.switch-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 18px; }
.row-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.hint.warn { color: var(--amber); }

/* ------------------------------------------------------------ setup checklist */
.checklist { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.step { display: grid; grid-template-columns: 26px 1fr; gap: 10px; align-items: start; padding: 12px 14px; border-radius: var(--r-lg); background: var(--graphite-2); border: 1px solid var(--rule-soft); }
.step.done { border-color: rgba(92, 207, 160, 0.35); background: linear-gradient(180deg, rgba(92, 207, 160, 0.07), transparent), var(--graphite-2); }
.step .dot { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--graphite-4); color: var(--ink-2); font-weight: 700; font-stretch: 80%; }
.step.done .dot { background: var(--fixer); color: #0f2a20; }
.step b { display: block; font-size: var(--fs-small); }
.step span { display: block; font-size: var(--fs-micro); color: var(--ink-3); line-height: 1.5; margin-top: 2px; }

/* ------------------------------------------------------------ provider cards */
.pcards { display: grid; gap: 10px; }
.pcard { border-radius: var(--r-lg); background: var(--graphite-2); border: 1px solid var(--rule-soft); transition: border-color 0.2s; }
.pcard.has-keys { border-color: #3d4450; }
.pcard.off { opacity: 0.6; }
.pcard-head { display: flex; align-items: center; gap: 12px; padding: 12px 14px 12px 16px; cursor: pointer; user-select: none; }
.pcard-head .order { width: 22px; font-weight: 700; font-stretch: 75%; color: var(--ink-3); font-size: 16px; }
.pcard-head .ptitle { flex: 1; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; }
.pcard-head .ptitle b { font-size: var(--fs-title); }
.pcard-head .state { font-size: var(--fs-micro); color: var(--ink-3); }
.pcard-head .state.ok { color: var(--fixer); }
.pcard-tools { display: flex; align-items: center; gap: 2px; }
.pcard-body { display: grid; gap: 12px; padding: 4px 16px 16px 50px; }
.pcard:not(.open) .pcard-body { display: none; }
.pcard .area.keys { min-height: 74px; font-size: var(--fs-small); letter-spacing: 0.2px; }
.key-tools { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.key-tools a { color: var(--amber); font-size: var(--fs-small); text-decoration: none; font-weight: 600; }
.key-tools a:hover { text-decoration: underline; }
.test-results { display: flex; flex-wrap: wrap; gap: 6px; }
.tr { display: inline-flex; align-items: center; gap: 6px; padding: 4px 9px; border-radius: 999px; font-size: var(--fs-micro); background: var(--graphite-3); color: var(--ink-2); max-width: 100%; }
.tr.ok { background: var(--fixer-soft); color: var(--fixer); }
.tr.bad { background: var(--grease-soft); color: #ffb3ad; }
.tr.busy { background: var(--amber-soft); color: var(--amber); }
.tr span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-line { font-size: var(--fs-micro); color: var(--ink-3); }

.table-wrap { overflow-x: auto; }
.stat-table { width: 100%; border-collapse: collapse; font-size: var(--fs-small); }
.stat-table th, .stat-table td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--rule-soft); white-space: nowrap; }
.stat-table th { color: var(--ink-3); font-weight: 600; font-size: var(--fs-micro); }
.stat-table td.num { text-align: right; font-stretch: 87%; }
.stat-table .bad { color: #ff9a92; }
.suggest { display: flex; flex-wrap: wrap; gap: 5px; }
.pref-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; }
.pref-grid .field .hint { font-weight: 600; color: var(--ink-2); }
.dead-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.dead-list li { display: grid; gap: 2px; padding: 8px 10px; border-radius: var(--r-sm); background: var(--graphite-1); font-size: var(--fs-micro); color: var(--ink-3); }
.dead-list li b { color: var(--ink-2); font-size: var(--fs-small); }
.dead-list .none { background: transparent; padding-left: 0; }

/* ------------------------------------------------------------ stats */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.stat { display: grid; gap: 2px; padding: 14px 16px; border-radius: var(--r-lg); background: var(--graphite-0); border: 1px solid var(--rule-soft); }
.stat .num { font-size: 28px; font-weight: 700; font-stretch: 70%; line-height: 1; }
.stat .hint { font-size: var(--fs-micro); }

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  padding: 9px 16px; border-radius: 999px; background: var(--graphite-4); color: var(--ink);
  font-size: var(--fs-small); box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.6);
}
.toast.ok { background: #1f3a30; color: var(--fixer); }
.toast.err { background: #3c2120; color: #ffb3ad; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  main { padding: 22px 18px 80px; }
  .grid4, .stat-grid { grid-template-columns: 1fr 1fr; }
  .switch-grid, .pref-grid, .grid2 { grid-template-columns: 1fr; }
  .pcard-body { padding-left: 16px; }
}