:root {
  --bg: #f4f6fb; --card: #fff; --text: #1a1d26; --muted: #667085; --line: #e4e7ef;
  --accent: #1a73e8; --accent-text: #fff; --ok: #137333; --ok-bg: #e6f4ea; --ko: #b3261e; --ko-bg: #fce8e6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1218; --card: #181c25; --text: #e8eaf0; --muted: #98a1b3; --line: #2a303c;
    --accent: #8ab4f8; --accent-text: #0f1218; --ok: #81c995; --ok-bg: #1e3326; --ko: #f28b82; --ko-bg: #3b1f1d; }
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex; flex-direction: column; align-items: center; padding: 48px 16px 24px; }
.card { width: 100%; max-width: 620px; background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 36px; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 24px 0 6px; }
a { color: var(--accent); }
.lead { font-size: 1.1rem; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); font-size: .9rem; }
.note { color: var(--muted); font-size: .88rem; margin-top: 24px; }
.steps { padding-left: 20px; margin: 0 0 28px; }
.steps li { margin-bottom: 8px; }
.btn, .btn-google { display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  font: 600 1rem/1 inherit; border-radius: 10px; padding: 14px 22px; cursor: pointer;
  text-decoration: none; border: 1px solid transparent; }
.btn { background: var(--accent); color: var(--accent-text); width: 100%; margin-top: 20px; }
.btn-google { background: #fff; color: #1f1f1f; border-color: #747775; font-family: Roboto, system-ui, sans-serif; }
.btn:hover, .btn-google:hover { filter: brightness(.96); }
.accts { display: grid; gap: 10px; margin-top: 20px; }
.acct { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border: 1px solid var(--line);
  border-radius: 12px; cursor: pointer; }
.acct:has(input:checked) { border-color: var(--accent); }
.acct.disabled { opacity: .6; cursor: default; }
.acct input { width: 18px; height: 18px; accent-color: var(--accent); }
.acct-main { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.badge { font-size: .75rem; padding: 3px 8px; border-radius: 99px; background: var(--line); white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.ko { background: var(--ko-bg); color: var(--ko); }
.results { list-style: none; padding: 0; display: grid; gap: 10px; }
.results li { padding: 12px 16px; border-radius: 10px; }
.results li.ok { background: var(--ok-bg); }
.results li.ko { background: var(--ko-bg); }
td.ok { color: var(--ok); } td.ko { color: var(--ko); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
footer { margin-top: 20px; font-size: .85rem; color: var(--muted); }
footer a { color: var(--muted); }
@media (max-width: 560px) {
  body { padding-top: 16px; }
  .card { padding: 24px 20px; }
  .acct { flex-wrap: wrap; }
  .badges { justify-content: flex-start; width: 100%; padding-left: 32px; }
}