:root {
  --bg: #f4f6f8; --card: #fff; --tx: #17202a; --mut: #5d6d7e; --line: #e3e8ee;
  --pri: #0f7b6c; --pri-tx: #fff; --ok-bg: #e3f6ec; --ok: #1d7a46; --off-bg: #eef1f4; --off: #5d6d7e;
  --err-bg: #fdecea; --err: #a61b1b; --info-bg: #e8f1fb; --info: #1d4f91; --warn: #b35c00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1418; --card: #182027; --tx: #e6ebef; --mut: #93a1ad; --line: #2a343d;
    --pri: #1fa38f; --pri-tx: #06140f; --ok-bg: #12301f; --ok: #6fd69a; --off-bg: #242d35; --off: #a3afba;
    --err-bg: #3a1716; --err: #ff9b93; --info-bg: #142a44; --info: #9cc4f5; --warn: #ffb35c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--tx); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--pri); }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { color: var(--tx); text-decoration: none; font-size: 17px; display: flex; align-items: center; gap: 8px; }
.brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--pri); }
nav { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
nav > a { text-decoration: none; color: var(--tx); }
main { max-width: 1040px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { font-size: 24px; margin: 0; } h2 { font-size: 17px; margin: 0 0 12px; }
.head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.card.narrow { max-width: 380px; margin: 48px auto; }
.muted { color: var(--mut); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; }
.warn { color: var(--warn); font-weight: 600; }
.big { font-size: 18px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--mut); }
input, select { font: inherit; color: var(--tx); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px; min-width: 0; }
input:focus, select:focus { outline: 2px solid var(--pri); outline-offset: -1px; }
button, .btn { font: inherit; font-weight: 600; background: var(--pri); color: var(--pri-tx); border: 0; border-radius: 8px;
  padding: 9px 16px; cursor: pointer; text-decoration: none; display: inline-block; }
button:disabled { opacity: .6; cursor: default; }
.ghost { background: transparent; color: var(--pri); border: 1px solid var(--line); }
.small { padding: 5px 10px; font-size: 13px; }
.danger { background: var(--err); color: #fff; }
.danger-zone { border-color: var(--err-bg); }
.stack { display: flex; flex-direction: column; gap: 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; align-items: end; }
.grid .actions { display: flex; align-items: end; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; }
.inline input { flex: 1 1 200px; }
.rename input { flex: 0 1 220px; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.erro { background: var(--err-bg); color: var(--err); }
.flash.info { background: var(--info-bg); color: var(--info); }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.off { background: var(--off-bg); color: var(--off); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--mut); font-weight: 600; }
.right { text-align: right; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card.inst { color: var(--tx); text-decoration: none; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.card.inst:hover { border-color: var(--pri); }
.inst-head { display: flex; justify-content: space-between; gap: 8px; }
.inst-row { display: flex; justify-content: space-between; align-items: center; color: var(--mut); }
.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.two .card { margin: 0 0 16px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0 0 12px; align-items: center; }
.kv dt { color: var(--mut); } .kv dd { margin: 0; word-break: break-all; }
#qr { display: inline-block; padding: 12px; background: #fff; border-radius: 10px; margin: 8px 0; }
#qr:empty { display: none; }
.steps { color: var(--mut); padding-left: 20px; font-size: 14px; }
.menu { position: relative; }
.menu summary { cursor: pointer; list-style: none; color: var(--tx); }
.menu summary::after { content: " ▾"; color: var(--mut); }
.menu-box { position: absolute; right: 0; top: 30px; z-index: 5; width: 260px; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; padding: 14px; display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,.15); }
@media (max-width: 560px) { .menu-box { right: -16px; width: calc(100vw - 32px); } }