:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --text: #15191e;
  --muted: #5b6572;
  --line: #d9dee4;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --ok: #15803d;
  --warn-bg: #fff7e0;
  --warn-line: #e3b341;
  --fail: #b42318;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #181c22;
    --text: #e8ebef;
    --muted: #9aa4b0;
    --line: #2b313a;
    --accent: #2dd4bf;
    --accent-text: #04201d;
    --ok: #4ade80;
    --warn-bg: #2a2310;
    --warn-line: #a57f1c;
    --fail: #f87171;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font: 17px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

.bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.bar-title { font-weight: 650; flex: 1; }
.bar-link {
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 6px 12px;
}

main { max-width: 520px; margin: 0 auto; padding: 20px 16px 40px; }

section { display: flex; flex-direction: column; gap: 14px; }
section[hidden] { display: none; }

h1 { font-size: 28px; line-height: 1.2; margin: 8px 0 0; }
h2 { font-size: 23px; line-height: 1.25; margin: 0; overflow-wrap: anywhere; }
p { margin: 0; }
.lead { font-size: 19px; color: var(--muted); }
.hint { color: var(--muted); font-size: 15px; }
.eyebrow { color: var(--muted); font-size: 14px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: -8px; }
.eyebrow.verified { color: var(--ok); }
.eyebrow.verified::before { content: "✓ "; }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; letter-spacing: .03em; }
.code { color: var(--muted); font: 14px ui-monospace, Menlo, Consolas, monospace; }
.code:empty { display: none; }
.error { color: var(--fail); min-height: 1.4em; font-size: 15px; }

button {
  font: inherit;
  border-radius: var(--radius);
  padding: 12px 18px;
  min-height: 48px;
  cursor: pointer;
}
button:disabled { opacity: .5; cursor: default; }
.primary { background: var(--accent); color: var(--accent-text); border: 0; font-weight: 650; }
.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--line); }
.text { background: none; border: 0; color: var(--accent); align-self: center; }
.big { min-height: 58px; font-size: 19px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

label { font-weight: 600; font-size: 15px; margin-top: 4px; display: block; }
input, select {
  width: 100%;
  font: inherit;
  padding: 12px 14px;
  min-height: 50px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  margin-top: 6px;
}
input:focus, select:focus, button:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 1px; }
form { display: flex; flex-direction: column; gap: 10px; }
.pw-row { display: flex; gap: 8px; align-items: stretch; }
.pw-row input { flex: 1; }
.pw-row button { margin-top: 6px; min-width: 76px; }

.notice { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.notice.warn { background: var(--warn-bg); border-color: var(--warn-line); }

.viewfinder { position: relative; border-radius: var(--radius); overflow: hidden; background: #000; aspect-ratio: 1; }
.viewfinder video { width: 100%; height: 100%; object-fit: cover; display: block; }
.viewfinder .frame { position: absolute; inset: 18%; border: 3px solid #fff; border-radius: 12px; box-shadow: 0 0 0 999px rgba(0, 0, 0, .35); }

.steps { list-style: none; padding: 0; margin: 4px 0; display: flex; flex-direction: column; gap: 12px; }
.steps li { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.steps li::before {
  content: "";
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid var(--line);
}
.steps li.active { color: var(--text); font-weight: 600; }
.steps li.active::before { border-color: var(--accent); border-right-color: transparent; animation: spin .9s linear infinite; }
.steps li.done { color: var(--text); }
.steps li.done::before { content: "✓"; border: 0; background: var(--ok); color: var(--surface); font-size: 14px; font-weight: 700; display: grid; place-items: center; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .steps li.active::before { animation: none; border-right-color: var(--accent); } }

.loading { color: var(--muted); }
.networks { list-style: none; padding: 0; margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.networks:empty { display: none; }
.networks li + li { border-top: 1px solid var(--line); }
.networks button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  border: 0;
  border-radius: 0;
  background: none;
  color: var(--text);
  min-height: 58px;
}
.networks .name { flex: 1; overflow-wrap: anywhere; }
.networks .note { display: block; font-size: 13px; color: var(--muted); }
.networks .lock { color: var(--muted); font-size: 14px; }
.bars { display: inline-flex; align-items: flex-end; gap: 2px; height: 16px; }
.bars i { width: 4px; background: var(--line); border-radius: 1px; }
.bars i:nth-child(1) { height: 25%; } .bars i:nth-child(2) { height: 50%; }
.bars i:nth-child(3) { height: 75%; } .bars i:nth-child(4) { height: 100%; }
.bars i.on { background: var(--text); }

.result-icon { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; font-size: 34px; font-weight: 700; color: var(--surface); margin-top: 8px; }
.result-icon.ok { background: var(--ok); }
.result-icon.ok::after { content: "✓"; }
.result-icon.warn { background: var(--warn-line); }
.result-icon.warn::after { content: "!"; }
.result-icon.fail { background: var(--fail); }
.result-icon.fail::after { content: "✕"; }
.result-icon.wait { background: var(--muted); }
.result-icon.wait::after { content: "⏳"; font-size: 28px; }

.history { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.history li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; }
.history .id { font-family: ui-monospace, Menlo, Consolas, monospace; }
.history .meta { color: var(--muted); font-size: 14px; grid-column: 1 / -1; overflow-wrap: anywhere; }
.history .status-online { color: var(--ok); }
.history .status-failed { color: var(--fail); }