:root {
    --bg: #f6f7f9;
    --panel: #ffffff;
    --text: #1d2733;
    --muted: #6a7887;
    --line: #dfe4ea;
    --accent: #1f6feb;
    --accent-dark: #1a5fcc;
    --ok-bg: #e7f6ec;
    --ok-line: #9fd8b1;
    --warn-bg: #fff6df;
    --warn-line: #f0cf7a;
    --err-bg: #fdecec;
    --err-line: #f1aaaa;
    --danger: #c62828;
    --radius: 8px;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 .6rem; }
code, pre { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .92em; }
code { background: #eef1f5; padding: .1rem .35rem; border-radius: 4px; word-break: break-all; }
pre { background: #eef1f5; padding: .8rem; border-radius: var(--radius); overflow-x: auto; white-space: pre-wrap; word-break: break-all; }

.top {
    display: flex; align-items: center; gap: 1.5rem;
    padding: .7rem 1.5rem; background: var(--panel); border-bottom: 1px solid var(--line);
}
.top .brand { font-weight: 700; color: var(--text); font-size: 1.1rem; }
.top nav { display: flex; gap: 1rem; flex: 1; }
.top .who { display: flex; gap: .8rem; align-items: center; color: var(--muted); }
.top .who form { margin: 0; }

main { max-width: 1040px; margin: 0 auto; padding: 1.8rem 1.5rem 4rem; }
section { margin: 0 0 2rem; }
.narrow { max-width: 420px; margin: 3rem auto; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .92rem; }
small { display: block; margin-top: .25rem; font-size: .85rem; }

nav.sub { display: flex; gap: 1.2rem; margin: -0.3rem 0 1.5rem; border-bottom: 1px solid var(--line); }
nav.sub a { padding: .4rem 0; color: var(--muted); }
nav.sub a.current { color: var(--text); border-bottom: 2px solid var(--accent); }

.alert { padding: .7rem 1rem; border-radius: var(--radius); border: 1px solid; margin: 0 0 1.2rem; }
.alert.ok { background: var(--ok-bg); border-color: var(--ok-line); }
.alert.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.alert.error { background: var(--err-bg); border-color: var(--err-line); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.card, .issued, section.service, .danger-zone {
    background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem;
}
.card { display: flex; flex-direction: column; gap: .3rem; }
.card h2 { margin: 0; }
.card p { margin: 0; }
.card form, .card .actions { margin-top: auto; padding-top: .6rem; }
.issued { border-color: var(--accent); margin-bottom: 1.5rem; }
.danger-zone { border-color: var(--err-line); }

.facts { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; margin: .8rem 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }

form { margin: 0; }
.stack { display: flex; flex-direction: column; gap: .8rem; max-width: 420px; }
.stack.wide { max-width: 760px; }
.inline { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin: .6rem 0; }
.row { display: flex; gap: .8rem; flex-wrap: wrap; }
.row .grow { flex: 1; min-width: 200px; }
.actions { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin-top: .8rem; }
label { display: flex; flex-direction: column; gap: .3rem; font-size: .92rem; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: .45rem; color: var(--text); }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: .6rem .9rem; display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
legend { color: var(--muted); font-size: .9rem; padding: 0 .3rem; }

input, select, textarea {
    font: inherit; color: var(--text); background: #fff;
    border: 1px solid var(--line); border-radius: 6px; padding: .45rem .6rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #b6d0fb; border-color: var(--accent); }
input[type=checkbox] { width: 1rem; height: 1rem; }

button, .button {
    font: inherit; cursor: pointer; display: inline-block;
    border: 1px solid var(--line); background: #fff; color: var(--text);
    border-radius: 6px; padding: .45rem .9rem;
}
button:hover, .button:hover { border-color: #b9c3cf; text-decoration: none; }
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover, .button.primary:hover { background: var(--accent-dark); }
button.danger { color: var(--danger); border-color: var(--err-line); }
button.link { border: 0; background: none; padding: 0; color: var(--accent); }
button.copy { padding: .15rem .5rem; font-size: .85rem; }

table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
th, td { text-align: left; padding: .5rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: .9rem; }
tr:last-child td { border-bottom: 0; }
tr.inactive td { color: var(--muted); }
table.log td { font-size: .88rem; }
.nowrap { white-space: nowrap; }
.tag { display: inline-block; font-size: .78rem; background: #eef1f5; color: var(--muted); border-radius: 999px; padding: 0 .5rem; margin-left: .3rem; }

.vpn-config { display: flex; gap: 2rem; flex-wrap: wrap; align-items: flex-start; }
.vpn-config details { flex: 1; min-width: 280px; }
.qr { width: 300px; max-width: 100%; image-rendering: pixelated; border: 1px solid var(--line); border-radius: var(--radius); }

@media (max-width: 640px) {
    .top { flex-wrap: wrap; gap: .6rem 1rem; }
    main { padding: 1.2rem 1rem 3rem; }
}