/* The kernel wears the same console vocabulary as AKOS: Geist, square ruled planes,
   mono metadata, a lockup rail and a quiet page grid. Its blue comes from the
   kernel-scoped steps in burbuja-tokens.css; this sheet contains no palette. */
@font-face {
    font-family: "Geist";
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url("fonts/geist.woff2") format("woff2");
}
@font-face {
    font-family: "Geist Mono";
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url("fonts/geist-mono.woff2") format("woff2");
}

body { text-rendering: optimizeLegibility; }
::selection { background: var(--btn-primary-fill); color: var(--on-primary); }
h1 { font-weight: 550; letter-spacing: -.045em; }
h2 { font-weight: 550; letter-spacing: -.02em; }

/* The same 56px header and ruled, square navigation as the client console. */
.topbar { height: 56px; padding: 0 24px; gap: 16px; border-bottom: 1px solid var(--line); }
.brand { gap: 10px; }
.brand-mark { color: var(--accent-mark); }
.brand-name { font: 700 13px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.crumbs { margin-left: 12px; padding-left: 16px; border-left: 1px solid var(--line); }
.crumbs, .rail-title, .tile-label, .metric-label, .section-title, .menu-head,
.table th, .grid th, .kv dt, .essentials dt, .recent-when, .footer, label {
    font-family: var(--mono);
    font-size: var(--eyebrow-size);
    line-height: 1.45;
    letter-spacing: var(--eyebrow-spacing);
    text-transform: uppercase;
    font-weight: 500;
}
.crumbs, .recent-when { letter-spacing: .06em; }
.session-chip { font-family: var(--mono); font-size: 11.5px; letter-spacing: .02em; }

.rail-nav {
    top: 56px; max-height: calc(100vh - 56px); flex-basis: 256px;
    padding: 22px 16px 18px; gap: 22px;
    background: var(--bg); border-right: 1px solid var(--line);
}
.kernel-lockup {
    display: flex; gap: 14px; align-items: center; padding: 2px 6px 18px;
    border-bottom: 1px solid var(--line-1); color: var(--text);
}
.kernel-lockup:hover { text-decoration: none; color: var(--text); }
.kernel-lockup-mark { display: inline-flex; flex: none; color: var(--accent-mark); }
.kernel-lockup-text { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.kernel-lockup-name { font: 400 22px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; }
.kernel-lockup-sub { font: 500 9px/1.5 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--text-secondary); }
.rail-group { gap: 4px; }
.rail-title { color: var(--text); font-weight: 700; padding: 0 10px 2px; }
.rail-nav .nav-link {
    height: 42px; padding: 0 12px; border-radius: 0; color: var(--text-secondary);
    font: 500 12px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase;
}
.rail-nav .nav-link:hover { background: var(--nav-hover); color: var(--text); }
.rail-nav .nav-link.active {
    background: transparent; color: var(--accent); font-weight: 600;
    box-shadow: inset 2px 0 0 var(--accent-mark);
}
.rail-nav .nav-link.active .icon { color: var(--accent); }
html[data-rail="collapsed"] .kernel-lockup-text { display: none; }
html[data-rail="collapsed"] .rail-nav { flex-basis: 64px; }

/* Content and data: rules give figures and action rows a common rhythm. */
.content { padding: 40px 48px 72px; }
.page-head { margin: 0 0 36px; padding-bottom: 24px; border-bottom: 1px solid var(--line); gap: 20px; }
.page-sub { font-size: 15px; line-height: 1.55; margin-top: 10px; max-width: 64ch; }
.eyebrow { font: 600 var(--eyebrow-size)/1.45 var(--mono); letter-spacing: var(--eyebrow-spacing); text-transform: uppercase; margin-bottom: 12px; }
.card { border: 1px solid var(--line); border-radius: 0; margin: 28px 0; }
.card-head { flex-direction: column; align-items: stretch; gap: 4px; padding: 18px 24px 16px; border-bottom: 1px solid var(--line-1); }
.card-head h2 { font-weight: 550; }
.card-body { padding: 24px; }
.panels { gap: 28px; margin: 28px 0; }
.alert { border: 1px solid var(--line); border-left-width: 3px; border-radius: 0; padding: 12px 16px; }
.alert, .alert > * { min-width: 0; overflow-wrap: anywhere; }
.empty { border: 1px dashed var(--line-3); padding: 16px 18px; }
.tiles { gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); margin: 28px 0; }
.tile { border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); border-radius: 0; padding: 20px 22px; gap: 6px; }
.tile:hover { border-color: var(--line); background: var(--hover); }
.tile-value { font-size: 34px; line-height: 38px; font-weight: 550; letter-spacing: -.04em; }
.metric { border: 1px solid var(--line); border-radius: 0; padding: 16px 18px; }
.rows, .services { border-top: 1px solid var(--line-1); }
.attention-rows { grid-template-columns: repeat(auto-fit, minmax(min(360px, 100%), 1fr)); }
.row-link, .service, .recent li { padding-top: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line-1); }
.table th, .grid th { padding: 10px 12px; border-bottom: 1px solid var(--line-4); }
.table td, .grid td { padding: 12px; border-bottom: 1px solid var(--line-1); }

/* Azure blue carries the action and active rule; statuses retain their own meanings. */
.btn { height: 40px; padding: 0 18px; gap: 8px; border: 1px solid transparent; border-radius: 0; font: 600 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.btn-small { height: 30px; padding: 0 12px; font-size: 10.5px; }
.btn-primary { background: var(--btn-primary-fill); color: var(--on-primary); border-color: var(--btn-primary-fill); }
.btn-primary:hover { background: var(--btn-primary-hover); color: var(--on-primary); border-color: var(--btn-primary-hover); }
.btn-outline { border: 1px solid var(--line-4); }
.btn-outline:hover { border-color: var(--accent-mark); color: var(--accent); }
.btn:disabled, .btn-disabled { border: 1px dashed var(--line-3); }
.pill { font: 600 10.5px/1.45 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.tag { border-radius: 0; font: 600 10px/1.5 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.chip, .menu-panel, .menu-item, .segmented, .segmented button, .ring-tab,
.meter-track, .meter-fill, .bar-track, .bar-fill, .spark-bar,
.inspector, .json-body, .input, input, textarea, select { border-radius: 0; }
input, textarea, select { border: 1px solid var(--line-3); min-height: 40px; padding-left: 12px; padding-right: 12px; }
input:focus, textarea:focus, select:focus, input:focus-within { border-color: var(--accent-mark); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-mark) 18%, transparent); }
input:focus-visible, textarea:focus-visible, select:focus-visible, .btn:focus-visible,
.nav-link:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 0; }

.signin-card { border: 1px solid var(--line-4); border-radius: 0; max-width: 440px; padding: 40px 36px; }
.signin-card h1 { font-size: 40px; line-height: 1; }
.footer { padding: 20px 24px; border-top: 1px solid var(--line); }

@media (max-width: 900px) {
    .rail-nav { inset: 56px auto 0 0; max-height: none; }
    .content { padding: 28px 20px 56px; }
    .brand-name { display: inline; }
    .crumbs { display: none; }
    html[data-rail="collapsed"] .rail-nav { flex-basis: auto; }
    html[data-rail="collapsed"] .kernel-lockup-text { display: flex; }
}
@media (max-width: 620px) {
    .topbar { padding: 0 10px; gap: 6px; }
    .brand-name { display: none; }
    .content { padding: 24px 16px 48px; }
    .page-head { margin-bottom: 28px; padding-bottom: 18px; }
    .page-head h1 { font-size: 28px; line-height: 32px; }
    .card-head { padding: 14px 16px; }
    .card-body { padding: 16px; }
    .panels { grid-template-columns: minmax(0, 1fr); gap: 20px; }
    .kv-inline { grid-template-columns: minmax(0, 1fr); }
    .kv-inline dd { margin: 0 0 8px; }
    .kv-inline code { overflow-wrap: anywhere; }
    .artifact { grid-template-columns: minmax(0, 1fr); }
    .tile { padding: 16px; }
    .tile-value { font-size: 28px; }
    .btn { height: 34px; padding: 0 9px; }
    .signin-card { padding: 28px 20px; }
}