:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --text: #1b2430;
    --muted: #5b6776;
    --primary: #1f4f7a;
    --primary-text: #ffffff;
    --border: #d5dbe2;
    --danger: #b3261e;
    --warning-bg: #fff4d6;
    --warning-border: #e0b34a;
    --success-bg: #e3f4e8;
    --success-border: #5aa86f;
    --error-bg: #fde7e5;
    --error-border: #d0645c;
    --info-bg: #e6f0fa;
    --radius: 12px;
    --tap: 44px;
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #11161c; --card: #1a2129; --text: #e7edf3; --muted: #9aa7b5; --primary: #5c9bd6; --primary-text: #0b1117;
        --border: #2c3641; --danger: #f2827a; --warning-bg: #3a3013; --warning-border: #9c7a24; --success-bg: #16301f;
        --success-border: #3f8a55; --error-bg: #3a1a18; --error-border: #a8483f; --info-bg: #15293d;
        color-scheme: dark;
    }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); }
h1 { font-size: 1.5rem; margin: .5rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 1rem 0 .5rem; }
code { font-size: .85em; word-break: break-all; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--card); padding: .5rem; z-index: 10; }
.topbar { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; justify-content: space-between; padding: .75rem 1rem; background: var(--primary); color: var(--primary-text); padding-top: max(.75rem, env(safe-area-inset-top)); }
.topbar a, .topbar .link { color: var(--primary-text); text-decoration: none; }
.brand { font-weight: 700; }
.nav { display: flex; flex-wrap: wrap; gap: .25rem .75rem; align-items: center; }
.nav a { padding: .4rem .2rem; min-height: var(--tap); display: inline-flex; align-items: center; }
.nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 4px; }
.container { max-width: 960px; margin: 0 auto; padding: 1rem; padding-bottom: max(2rem, env(safe-area-inset-bottom)); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem; }
.card.narrow { max-width: 440px; margin: 2rem auto; }
.card-alert { border-color: var(--error-border); border-width: 2px; }
.stack { display: flex; flex-direction: column; gap: .75rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: flex-end; margin: .5rem 0; }
.grow { flex: 1 1 12rem; }
.inline { display: inline; margin: 0; }
label { display: flex; flex-direction: column; gap: .25rem; font-weight: 500; }
label.check { flex-direction: row; align-items: center; gap: .5rem; font-weight: 400; min-height: var(--tap); }
input, select { font: inherit; padding: .6rem .7rem; border: 1px solid var(--border); border-radius: 8px; background: var(--card); color: var(--text); min-height: var(--tap); width: 100%; }
input[type="checkbox"], input[type="radio"] { width: 1.3rem; height: 1.3rem; min-height: 0; padding: 0; margin: 0; flex: none; }
button, .button { font: inherit; display: inline-flex; align-items: center; justify-content: center; min-height: var(--tap); padding: .5rem 1rem; border-radius: 8px; border: 1px solid var(--primary); background: var(--primary); color: var(--primary-text); text-decoration: none; cursor: pointer; font-weight: 600; }
button.secondary, .button.secondary { background: transparent; color: var(--primary); }
button.danger, .button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.link { background: none; border: none; padding: 0; min-height: 0; color: var(--primary); text-decoration: underline; font-weight: 400; }
button.small, .button.small { min-height: 36px; padding: .3rem .7rem; font-size: .9rem; }
button:disabled { opacity: .45; cursor: not-allowed; }
button[aria-busy="true"] { opacity: .7; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.badge { display: inline-block; font-size: .75rem; padding: .1rem .5rem; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); vertical-align: middle; }
.badge-demo { border-color: var(--warning-border); background: var(--warning-bg); color: var(--text); }
.badge-offline { border-color: var(--error-border); background: var(--error-bg); color: var(--text); }
.badge-ok { border-color: var(--success-border); background: var(--success-bg); color: var(--text); }
.badge-access { border-color: var(--primary); color: var(--primary); }
.alert { padding: .75rem 1rem; border-radius: 8px; border: 1px solid; margin: 0 0 1rem; }
.alert-success { background: var(--success-bg); border-color: var(--success-border); }
.alert-warning { background: var(--warning-bg); border-color: var(--warning-border); }
.alert-error { background: var(--error-bg); border-color: var(--error-border); }
.alert-info { background: var(--info-bg); border-color: var(--border); }
/* Result of a form post, shown right below the form that was sent. */
.alert-inline { margin: .5rem 0 1rem; }
.list > li > .alert-inline { flex: 1 0 100%; margin: 0; }
.banner { margin: 0; padding: .6rem 1rem; font-size: .9rem; }
.banner-demo { background: var(--warning-bg); border-bottom: 1px solid var(--warning-border); }
.banner-info { background: var(--info-bg); border-radius: 8px; margin-bottom: 1rem; }
.list { list-style: none; margin: 0; padding: 0; }
.list > li { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem; padding: .75rem 0; border-bottom: 1px solid var(--border); }
.list > li:last-child { border-bottom: none; }
.list > li.stack { flex-direction: column; align-items: stretch; }
.room { margin-bottom: 1.5rem; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: .75rem; }
.tile { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.tile header { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.tile h3 { margin: 0; flex: 1 1 auto; }
.tile .state { font-size: 1.1rem; font-weight: 600; margin: .5rem 0; }
.tile.is-offline { border-color: var(--error-border); }
.tile.is-offline .state { color: var(--danger); font-weight: 500; font-size: 1rem; }
.result:empty { display: none; }
.result { border-radius: 8px; padding: .5rem .75rem; margin: .25rem 0; }
.result[data-status="confirmed"] { background: var(--success-bg); }
.result[data-status="pending"] { background: var(--warning-bg); }
.result[data-status="offline"], .result[data-status="failed"], .result[data-status="invalid"], .result[data-status="forbidden"], .result[data-status="stepup_required"] { background: var(--error-bg); }
fieldset.grants { border: 1px solid var(--border); border-radius: 8px; padding: .75rem; margin: 0; }
fieldset.grants legend { font-weight: 700; padding: 0 .25rem; }
.grant-block { padding: .25rem 0 .5rem; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: .5rem 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; }
details summary { cursor: pointer; min-height: 32px; }
@media (max-width: 480px) {
    .container { padding: .75rem; }
    .actions > form, .actions > button { flex: 1 1 auto; }
    .actions button { width: 100%; }
}
.mail-status { margin-top: .2rem; }
.mail-status.mail-failed, .mail-status.mail-bounced, .mail-status.mail-complaint { color: var(--danger); font-weight: 600; }
.mail-status.mail-retry, .mail-status.mail-queued, .mail-status.mail-sending { color: var(--muted); }
label.check.inline { display: inline-flex; margin-right: .75rem; }
.steps { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0 0 1rem; counter-reset: step; }
.steps li { counter-increment: step; color: var(--muted); }
.steps li::before { content: counter(step) ". "; }
.steps li.current { color: inherit; font-weight: 700; }
.subnav { display: flex; gap: .25rem; margin: 0 0 1rem; border-bottom: 1px solid var(--border); overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.subnav::-webkit-scrollbar { display: none; }
.subnav a { display: inline-flex; align-items: center; gap: .35rem; white-space: nowrap; min-height: var(--tap); padding: .4rem .8rem; color: var(--muted); text-decoration: none; border-bottom: 3px solid transparent; margin-bottom: -1px; font-weight: 500; }
.subnav a:hover { color: var(--text); }
.subnav a[aria-current="page"] { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.count { display: inline-flex; align-items: center; justify-content: center; min-width: 1.35rem; height: 1.35rem; padding: 0 .35rem; border-radius: 999px; font-size: .75rem; font-weight: 700; background: var(--border); color: var(--text); }
.count-alert { background: var(--danger); color: #fff; }
.card-head { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: space-between; margin-bottom: .5rem; }
.card-head h2 { margin: 0; }
@media (max-width: 600px) {
    .subnav { flex-wrap: wrap; gap: .4rem; border-bottom: none; overflow: visible; }
    .subnav a { min-height: 38px; padding: .3rem .75rem; border: 1px solid var(--border); border-radius: 999px; margin: 0; background: var(--card); font-size: .9rem; }
    .subnav a[aria-current="page"] { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
    .subnav a[aria-current="page"] .count-alert { background: #fff; color: var(--danger); }
}
.card-danger { border-color: var(--error-border); }
.page-narrow { max-width: 640px; margin: 0 auto; }
.form-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: flex-end; }
.form-row > .grow { flex: 1 1 10rem; }
.section { border-top: 1px solid var(--border); margin-top: 1rem; padding-top: .75rem; }
.section h3 { margin-top: 0; }
.card-head + .result:empty + .section { border-top: none; margin-top: 0; padding-top: 0; }
details.section > summary { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; min-height: var(--tap); }
.section-title { font-weight: 700; }
.badge-warn { border-color: var(--warning-border); background: var(--warning-bg); color: var(--text); }
.live { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; justify-content: space-between; padding: .75rem 1rem; border-radius: 8px; border: 1px solid var(--success-border); background: var(--success-bg); margin-bottom: .5rem; }
.live-warn { border-color: var(--warning-border); background: var(--warning-bg); }
.hint { margin-top: .5rem; }
.hint > summary { color: var(--muted); }
.disclosure { margin-top: .75rem; }
.disclosure > summary { display: inline-flex; align-items: center; min-height: var(--tap); padding: .5rem 1rem; border: 1px solid var(--primary); border-radius: 8px; color: var(--primary); font-weight: 600; }
.disclosure[open] > summary { margin-bottom: .75rem; }
.code-box > summary { font-weight: 600; color: var(--primary); min-height: var(--tap); display: flex; align-items: center; }
.code { font-size: 2.2rem; font-weight: 700; letter-spacing: .3rem; font-variant-numeric: tabular-nums; margin: .25rem 0; }
@media (max-width: 480px) {
    .live > form, .live button, .form-row button { width: 100%; }
}
.notes { margin: 0; padding-left: 1.2rem; }
.notes li + li { margin-top: .4rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.icon { width: 1.25em; height: 1.25em; flex: none; vertical-align: -.25em; }
.page-title { display: flex; flex-wrap: wrap; gap: .25rem .75rem; align-items: center; margin: .5rem 0 1rem; }
.page-title h1 { margin: 0; }
.page-title .badge { display: inline-flex; align-items: center; gap: .3rem; font-size: .8rem; padding: .2rem .6rem; }
.page-title .badge .icon { width: 1em; height: 1em; }
.stats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: .75rem; }
.stat { display: flex; gap: .75rem; align-items: flex-start; height: 100%; padding: .75rem; border: 1px solid var(--border); border-radius: 10px; color: var(--text); text-decoration: none; }
a.stat:hover, a.stat:focus-visible { border-color: var(--primary); }
.stat-icon { display: inline-flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; border-radius: 50%; flex: none; background: var(--bg); color: var(--muted); }
.stat-icon .icon { width: 1.35rem; height: 1.35rem; }
.stat-ok .stat-icon { background: var(--success-bg); color: var(--success-border); }
.stat-warn .stat-icon { background: var(--warning-bg); color: var(--warning-border); }
.stat-alert .stat-icon { background: var(--error-bg); color: var(--danger); }
.stat-alert { border-color: var(--error-border); }
.stat-body { display: flex; flex-direction: column; min-width: 0; }
.stat-label { font-size: .8rem; color: var(--muted); }
.stat-value { font-weight: 700; line-height: 1.3; }
.stat-detail { font-size: .8rem; color: var(--muted); }
.caps { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .4rem; }
.cap { display: inline-flex; align-items: center; justify-content: center; width: 1.75rem; height: 1.75rem; border-radius: 6px; background: var(--info-bg); color: var(--primary); }
.cap .icon { width: 1rem; height: 1rem; }
.tile-icon { display: inline-flex; color: var(--primary); }
.tile.is-offline .tile-icon { color: var(--danger); }
.icon-button { min-height: 36px; width: 36px; padding: 0; background: transparent; color: var(--muted); border-color: var(--border); }
.icon-button:hover { color: var(--primary); border-color: var(--primary); }
.with-icon { display: flex; gap: .4rem; align-items: center; }
@media (max-width: 480px) {
    .stats { grid-template-columns: 1fr 1fr; gap: .5rem; }
    .stat { flex-direction: column; gap: .4rem; padding: .6rem; }
    .stat-icon { width: 2.1rem; height: 2.1rem; }
}
.legend { list-style: none; margin: .5rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .4rem .75rem; font-size: .875rem; }
.legend li { display: flex; gap: .5rem; align-items: center; }