* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, "Segoe UI", sans-serif; margin: 0; color: #1a2733; background: #f5f7fa; }
header { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem 1.2rem; background: #12496b; color: #fff; }
.brand { font-weight: 700; }
.logout { display: flex; gap: 0.6rem; align-items: center; margin: 0; }
.who { font-size: 0.85rem; opacity: 0.85; }
main { max-width: 720px; margin: 2rem auto; padding: 0 1rem; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.05rem; margin-top: 1.8rem; }
table { border-collapse: collapse; width: 100%; background: #fff; }
th, td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid #e3e8ee; }
th { background: #eef2f6; }
form { margin-top: 1rem; }
label { display: block; margin-bottom: 0.3rem; font-weight: 600; }
input[name="code"] { font-size: 1.4rem; letter-spacing: 0.3rem; width: 9rem; padding: 0.4rem 0.6rem; }
button, .button { display: inline-block; margin-top: 0.8rem; padding: 0.55rem 1.1rem; background: #12496b; color: #fff; border: 0; border-radius: 4px; font-size: 1rem; text-decoration: none; cursor: pointer; }
.error { color: #a4262c; font-weight: 600; }
.qr svg { width: 240px; height: 240px; background: #fff; padding: 8px; border: 1px solid #e3e8ee; }
.manual code { user-select: all; }