:root {
  --ground: #F6F7F9;
  --surface: #FFFFFF;
  --ink: #15181D;
  --muted: #5B6472;
  --line: #DDE1E7;
  --accent: #1F5FBF;
  --accent-ink: #FFFFFF;
  --found: #1D7A4A;
  --found-bg: #EFF7F2;
  --error: #B42318;
  --error-bg: #FDF0EE;
  --warn: #7A5000;
  --warn-bg: #FFF6E0;
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  --mono: "Cascadia Mono", Consolas, ui-monospace, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0F1216;
    --surface: #171B21;
    --ink: #E8EBEF;
    --muted: #9AA4B2;
    --line: #2A303A;
    --accent: #3B79D9;
    --found: #6FCF97;
    --found-bg: #12261B;
    --error: #F28B82;
    --error-bg: #2B1513;
    --warn: #F2C26B;
    --warn-bg: #2B2210;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--ground); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.5 var(--font);
}
.top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  max-width: 452px;
  margin: 0 auto;
}
.mark-bg { fill: var(--accent); }
.mark-fg { stroke: var(--accent-ink); }
.brand { display: flex; flex-direction: column; line-height: 1.2; }
.name { font-weight: 650; font-size: 18px; letter-spacing: 0.01em; }
.tag { color: var(--muted); font-size: 13px; }
.wrap { padding: 0 16px 32px; }
.card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 20px;
}
h1 { margin: 0 0 16px; font-size: 20px; line-height: 1.3; font-weight: 650; }
.h-signin { margin-top: 8px; }
.h-offline { margin-bottom: 12px; }
.label { display: block; margin: 12px 0 4px; font-size: 14px; font-weight: 600; }
.input {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ground);
  color: var(--ink);
  font: inherit;
}
.input.mono { font-family: var(--mono); }
.input:focus-visible, .btn:focus-visible, .link:focus-visible, .link-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.note { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.error {
  margin: 12px 0 0;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--error-bg);
  color: var(--error);
  font-size: 14px;
}
.notice {
  margin: 0 0 16px;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn);
  font-size: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.btn.primary { width: 100%; margin-top: 16px; background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.actions .btn.primary { width: auto; margin-top: 12px; }
.link { color: var(--accent); }
.link-btn {
  min-height: 44px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}
.chip-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0; }
.chip {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ground);
  font: 14px var(--mono);
  overflow-wrap: anywhere;
}
.host-name { margin: 0 0 4px; font-size: 18px; font-weight: 650; overflow-wrap: anywhere; }
.name-row { margin: 8px 0 0; }
.note-inline { color: var(--muted); font-size: 13px; }
.sub { margin: 24px 0 4px; font-size: 14px; font-weight: 600; color: var(--muted); }
.recent-list { margin: 0; padding: 0; list-style: none; }
.recent-list li { display: flex; align-items: stretch; gap: 8px; border-top: 1px solid var(--line); }
.recent-list li:first-child { border-top: 0; }
.recent-pick {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  min-height: 44px;
  padding: 6px 0;
  border: 0;
  background: none;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.recent-pick:focus-visible, .recent-forget:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.recent-name { font-weight: 600; overflow-wrap: anywhere; }
.recent-key { color: var(--muted); font: 13px var(--mono); overflow-wrap: anywhere; }
.recent-forget {
  min-width: 44px;
  min-height: 44px;
  padding: 0 8px;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 14px;
  text-decoration: underline;
  cursor: pointer;
}
.badge { padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.badge.on { background: var(--found-bg); color: var(--found); }
.badge.off { background: var(--warn-bg); color: var(--warn); }
@media (max-width: 400px) {
  .card { padding: 20px 16px; }
}