:root { --primary: #3E7CC7; --accent: #F2A93B; --on-primary: #fff; --on-accent: #1d2330; --bg: #f6f7f9; --text: #1d2330; --muted: #5f6877; --card: #fff; --border: #d9dde4; --danger: #c0392b; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
header.top { background: var(--primary); color: var(--on-primary); padding: .6rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
header.top a, header.top button { color: var(--on-primary); }
header.top .brand { display: inline-flex; align-items: center; gap: .6rem; }
header.top .logo { height: 1.8rem; width: auto; border-radius: 4px; }
header.top .brand { font-weight: 600; text-decoration: none; }
header.top form { margin: 0; }
main { max-width: 34rem; margin: 1.5rem auto; padding: 0 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; margin-bottom: 1rem; }
h1 { font-size: 1.4rem; margin: 0 0 1rem; }
label { display: block; font-weight: 500; margin: .8rem 0 .25rem; }
input[type=text], input[type=password], input[type=email] { width: 100%; padding: .65rem .75rem; border: 1px solid var(--border); border-radius: 8px; font: inherit; }
button, .btn { display: inline-block; margin-top: 1rem; padding: .65rem 1.1rem; border: 0; border-radius: 8px; background: var(--primary); color: var(--on-primary); font: inherit; cursor: pointer; text-decoration: none; }
button.link { background: none; margin: 0; padding: 0; text-decoration: underline; color: inherit; }
.errorlist { color: var(--danger); list-style: none; padding: 0; margin: .25rem 0; }
.messages { list-style: none; padding: 0; margin: 0 0 1rem; }
.messages li { background: #e8f3ea; border: 1px solid #b7d9bd; border-radius: 8px; padding: .6rem .8rem; margin-bottom: .5rem; }
.helptext, .muted { color: var(--muted); font-size: .9rem; }
.codes { font: 1.1rem/1.8 ui-monospace, Consolas, monospace; columns: 2; }
.qr svg { max-width: 100%; height: auto; }