:root {
  --bg: #0b1114;
  --panel: #121b20;
  --line: #1f2c33;
  --text: #e6eef1;
  --muted: #8399a3;
  --accent: #2fd6b0;
  --accent-ink: #062a22;
  --danger: #ff6b6b;
  --warn: #f4c26b;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
h1, h2, h3 { margin: 0 0 8px; font-weight: 650; }
h2 { font-size: 20px; }
h3 { font-size: 16px; margin-top: 20px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.btn { appearance: none; border: 1px solid var(--line); background: transparent; color: var(--text); padding: 9px 16px; border-radius: 10px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-block; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); }
.btn.small { padding: 5px 11px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: wait; }
input:not([type=radio]) { width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--text); border-radius: 10px; padding: 11px 12px; font: inherit; margin-top: 6px; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
label { display: block; font-size: 14px; color: var(--muted); }

.screen { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 340px; text-align: center; display: grid; gap: 12px; }
.login h1 { margin: 0; }
.login p { margin: 0; }
.logo-lg { width: 56px; height: 56px; margin: 0 auto; }
.logo { width: 26px; height: 26px; }
.error { color: var(--danger); min-height: 1.5em; }

header { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(11,17,20,.92); backdrop-filter: blur(8px); z-index: 2; }
.brand { display: flex; gap: 10px; align-items: center; font-weight: 700; font-size: 17px; }
main { max-width: 920px; margin: 0 auto; padding: 20px 16px 60px; }

.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; display: grid; gap: 2px; }
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 20px; font-weight: 650; }
.stat .value.small { font-size: 14px; }
.notice { background: #2a2410; border: 1px solid #5a4a1a; color: var(--warn); border-radius: 10px; padding: 10px 14px; margin-bottom: 16px; }

.row-head { display: flex; justify-content: space-between; align-items: center; margin: 8px 0 12px; }
.peers { display: grid; gap: 10px; }
.empty { padding: 24px; text-align: center; border: 1px dashed var(--line); border-radius: 14px; }
.peer { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; align-items: center; }
.peer.off { opacity: .6; }
.peer-main { display: flex; gap: 12px; align-items: center; min-width: 0; }
.peer-name { font-weight: 650; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tag { font-size: 11px; font-weight: 600; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; }
.peer-meta { display: flex; gap: 14px; flex-wrap: wrap; grid-column: 1 / -1; padding-left: 24px; }
.peer-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; grid-row: 1; grid-column: 2; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.online { background: var(--accent); box-shadow: 0 0 0 4px rgba(47,214,176,.18); }
.dot.off { background: var(--danger); }
#pending { margin-top: 8px; display: grid; gap: 10px; }

.help { margin-top: 28px; }
.help ol { margin: 0; padding-left: 20px; display: grid; gap: 6px; color: #c4d2d8; }

dialog { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 16px; padding: 0; width: min(460px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(0,0,0,.6); }
.dialog-body { padding: 20px; display: grid; gap: 14px; }
.dialog-body ol { margin: 0; padding-left: 20px; display: grid; gap: 4px; }
.tabs { display: grid; gap: 8px; }
.tabs label { display: flex; gap: 10px; align-items: center; color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; cursor: pointer; }
.tabs label:has(input:checked) { border-color: var(--accent); }
.actions { display: flex; justify-content: flex-end; gap: 8px; }
.qr { background: #fff; border-radius: 12px; padding: 10px; width: min(280px, 100%); margin: 0 auto; }
.qr:empty { display: none; }
.qr svg { display: block; width: 100%; height: auto; }
.warn { color: var(--warn); font-size: 13px; margin: 0; }
.code { font: 700 26px/1.2 ui-monospace, Consolas, monospace; letter-spacing: 3px; text-align: center; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 0; }

@media (max-width: 560px) {
  .peer { grid-template-columns: 1fr; }
  .peer-actions { grid-row: auto; grid-column: 1; justify-content: flex-start; padding-left: 24px; }
}