:root {
    color-scheme: light;
    --bg: #f4f6f8;
    --surface: #ffffff;
    --ink: #17202a;
    --muted: #627080;
    --line: #dfe5eb;
    --primary: #155eef;
    --danger: #b42318;
    --success: #067647;
    --warning: #b54708;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
a { color: var(--primary); }
.container { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.topbar { background: #111827; color: white; padding: 1rem 0; }
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.topbar h1 { font-size: 1.05rem; margin: 0; }
main { padding: 1.5rem 0 3rem; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem; }
.span-4 { grid-column: span 4; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: .75rem; padding: 1.1rem; box-shadow: 0 1px 2px rgb(16 24 40 / 4%); }
.card h2 { margin: 0 0 1rem; font-size: 1rem; }
h1 { margin: .25rem 0 .75rem; font-size: clamp(1.45rem, 3vw, 2rem); }
.eyebrow { margin: 0; color: var(--primary); font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
label { display: block; font-size: .86rem; font-weight: 650; margin: .8rem 0 .3rem; }
input, select, button { font: inherit; }
input[type="text"], input[type="password"], select { width: 100%; padding: .65rem .7rem; border: 1px solid #b8c2cc; border-radius: .45rem; background: white; }
textarea { width: 100%; min-height: 6rem; padding: .65rem .7rem; border: 1px solid #b8c2cc; border-radius: .45rem; background: white; resize: vertical; font: .82rem ui-monospace, SFMono-Regular, Consolas, monospace; }
button { border: 0; border-radius: .45rem; padding: .62rem .85rem; cursor: pointer; font-weight: 650; background: var(--primary); color: white; }
button.secondary { background: #344054; }
button.danger { background: var(--danger); }
button.link { background: transparent; padding: 0; color: white; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.inline { display: inline-flex; gap: .4rem; align-items: center; }
.help, .meta { color: var(--muted); font-size: .82rem; }
.flash { border-radius: .55rem; padding: .8rem 1rem; margin-bottom: 1rem; }
.flash.success { background: #ecfdf3; color: var(--success); border: 1px solid #abefc6; }
.flash.error { background: #fef3f2; color: var(--danger); border: 1px solid #fecdca; }
.status { display: inline-flex; align-items: center; border-radius: 999px; padding: .2rem .55rem; font-size: .75rem; font-weight: 700; }
.status.active { color: var(--success); background: #ecfdf3; }
.status.expired, .status.disabled { color: var(--muted); background: #eef2f6; }
.status.failed { color: var(--danger); background: #fef3f2; }
.status.stale { color: var(--warning); background: #fffaeb; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .86rem; }
th, td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .03em; }
code { background: #f0f3f6; border-radius: .25rem; padding: .12rem .3rem; }
.login { width: min(430px, calc(100% - 2rem)); margin: 8vh auto; }
.setup { width: min(680px, calc(100% - 2rem)); margin: 4vh auto; }
.checkbox { display: flex; gap: .5rem; align-items: flex-start; font-weight: 400; }
.checkbox input { margin-top: .2rem; }
.stack > * + * { margin-top: .75rem; }
fieldset { border: 1px solid var(--line); border-radius: .65rem; padding: .85rem 1rem 1rem; }
legend { padding: 0 .35rem; font-weight: 750; }
.notice { border-radius: .55rem; padding: .8rem 1rem; font-size: .86rem; }
.notice.warning { color: var(--warning); background: #fffaeb; border: 1px solid #fedf89; }
.empty-state { border: 1px dashed #b8c2cc; border-radius: .65rem; padding: 1rem; background: #f8fafc; }
.empty-state p { margin-bottom: 0; }
.ip-value { font: 700 clamp(1.25rem, 4vw, 2rem) ui-monospace, SFMono-Regular, Consolas, monospace; overflow-wrap: anywhere; }
.audit-record { padding: .6rem 0; border-bottom: 1px solid var(--line); font-size: .84rem; }
.audit-record:last-child { border-bottom: 0; }
@media (max-width: 820px) {
    .span-4, .span-8 { grid-column: span 12; }
    .container { width: min(100% - 1rem, 1180px); }
}