:root {
  --bg: #f6f6f8; --fg: #1d1d22; --muted: #6b6b76; --card: #ffffff; --line: #e3e3ea;
  --accent: #4b3fd0; --accent-fg: #ffffff; --danger: #b3261e; --ok: #1e7b3a;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121216; --fg: #ececf1; --muted: #a0a0ad; --card: #1c1c22; --line: #2d2d36;
          --accent: #8c82ff; --accent-fg: #121216; --danger: #ff8a80; --ok: #7ad592; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
       font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.top { display: flex; justify-content: space-between; align-items: center; gap: 1rem;
       padding: .9rem 1.25rem; border-bottom: 1px solid var(--line); background: var(--card); flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); font-size: 1.1rem; }
.brand span { color: var(--accent); }
.top nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.wrap { max-width: 860px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 2rem 1rem; }
h1 { font-size: 1.7rem; line-height: 1.25; margin: .2rem 0 1rem; }
h2 { font-size: 1.2rem; margin: 0 0 .6rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }
.hero { padding: 1rem 0 .5rem; }
.lead { font-size: 1.1rem; color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.25rem; margin: 0 0 1rem; }
.narrow { max-width: 460px; margin: 1rem auto; }
.muted { color: var(--muted); }
.small { font-size: .87rem; }
.mono { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; overflow-wrap: anywhere; }
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: .7rem 0; border-top: 1px solid var(--line); }
.list li:first-child { border-top: 0; }
label { display: block; font-weight: 600; margin: .8rem 0 .3rem; }
input { width: 100%; padding: .65rem .75rem; border: 1px solid var(--line); border-radius: 8px;
        background: var(--bg); color: var(--fg); font: inherit; }
.button, button.button { display: inline-block; margin-top: .9rem; padding: .65rem 1.1rem; border: 0; border-radius: 8px;
         background: var(--accent); color: var(--accent-fg); font: inherit; font-weight: 600;
         text-decoration: none; cursor: pointer; }
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.button.danger { background: var(--danger); color: #fff; }
.button.small { padding: .35rem .7rem; margin-top: .4rem; font-size: .9rem; }
.button.google { width: 100%; text-align: center; }
.linkish { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; }
.linkish.danger { color: var(--danger); }
form.inline { display: inline; }
.row { display: flex; gap: .5rem; flex-wrap: wrap; }
.error { color: var(--danger); font-weight: 600; }
.notice { background: var(--card); border-left: 4px solid var(--accent); padding: .6rem .9rem; }
.or { text-align: center; color: var(--muted); margin: 1rem 0 0; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: .3rem 1rem; margin: 1rem 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; }
.badge { font-size: .75rem; padding: .1rem .5rem; border-radius: 99px; border: 1px solid var(--line); margin-left: .4rem; }
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.off { color: var(--muted); }
.danger-zone h3 { color: var(--danger); }