style.css

:root {
    color-scheme: light;
    --page: #f4f5f3;
    --surface: #fff;
    --ink: #202421;
    --muted: #626960;
    --rule: #dce0d9;
    --accent: #ad462b;
    --rack-bg: #202623;
    --rack-face: #303834;
    --rack-rule: #505c54;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 100%;
    font-synthesis: none;
    -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); line-height: 1.5; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-underline-offset: 4px; }
a:hover { color: var(--accent); }
button { font: inherit; }
button, a, summary { touch-action: manipulation; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 10; background: var(--surface); padding: 12px 18px; }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--rule); background: var(--surface); }
.header-inner { max-width: 1280px; min-height: 76px; padding: 0 40px; margin: auto; display: flex; align-items: center; gap: 40px; }
.wordmark { display: inline-flex; align-items: center; text-decoration: none; font-size: 1.5rem; font-weight: 500; letter-spacing: -1px; }
.wordmark span { font-weight: 750; }
.brand-mark { width: 26px; height: 26px; margin-right: 12px; stroke: currentColor; stroke-width: 1.5; }
.header-context { padding-left: 28px; border-left: 1px solid var(--rule); color: var(--muted); font-size: 0.875rem; }
.source-link { margin-left: auto; font-size: 0.875rem; font-weight: 600; text-decoration: none; padding: 10px 0 10px 10px; }
.source-link span { margin-left: 8px; }
.app { max-width: 1280px; margin: 0 auto; padding: 42px 40px 24px; }
.page-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin-bottom: 34px; }
.eyebrow { margin: 0 0 10px; font: 0.75rem/1.4 var(--mono); color: var(--muted); letter-spacing: .08em; }
h1 { margin: 0; font-size: clamp(1.875rem, 3.5vw, 2.5rem); line-height: 1.1; font-weight: 650; letter-spacing: -1.5px; }
.page-description { margin: 12px 0 0; color: var(--muted); }
.rack-summary { display: flex; gap: 32px; margin: 0 0 1px; }
.rack-summary > div { border-left: 1px solid var(--rule); padding-left: 26px; }
.rack-summary dt { color: var(--muted); font-size: 0.8125rem; margin-bottom: 5px; }
.rack-summary dd { margin: 0; font: 1.75rem/1.2 var(--mono); letter-spacing: -1px; }
.summary-suffix { font-size: 0.9375rem; color: var(--muted); }
.workspace { display: grid; grid-template-columns: minmax(340px, .95fr) minmax(0, 1.05fr); align-items: start; gap: 28px; }
.rack-panel, .device-panel { min-width: 0; background: var(--surface); border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.panel-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 58px; padding: 14px 24px; border-bottom: 1px solid var(--rule); }
.panel-header h2 { margin: 0; font-size: 0.875rem; font-weight: 650; }
.panel-caption { font: 0.75rem/1.5 var(--mono); color: var(--muted); }
.rack-stage { background: var(--rack-bg); padding: 18px 22px 14px; color: #edf0eb; }
.rack-orientation { display: flex; justify-content: space-between; padding-bottom: 12px; color: #b2bcb4; font: 0.75rem/1.4 var(--mono); letter-spacing: .07em; }
.rack-bottom { padding-top: 12px; padding-bottom: 0; }
.rack { --unit-size: 2.125rem; --total-units: 16; display: grid; grid-template-columns: 28px minmax(0, 1fr); grid-template-rows: repeat(var(--total-units), var(--unit-size)); column-gap: 12px; }
.unit-label { grid-column: 1; display: flex; align-items: center; justify-content: flex-end; padding-right: 1px; color: #b2bcb4; font: 0.75rem/1 var(--mono); }
.rack-device, .rack-empty { grid-column: 2; min-width: 0; margin: 2px 0; border: 1px solid var(--rack-rule); border-radius: 3px; }
.rack-device { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 4px 14px; text-align: left; color: #f1f3ef; background: var(--rack-face); cursor: pointer; transition: background-color 120ms ease, border-color 120ms ease; }
.rack-device:hover { background: #3c4740; border-color: #96a399; }
.rack-device.selected { background: #403b2f; border-color: #e2b36e; box-shadow: inset 3px 0 #e2b36e; }
.rack-device:focus-visible { outline: 2px solid #fff; outline-offset: 1px; z-index: 1; }
.device-label { display: block; min-width: 0; font-size: 0.875rem; font-weight: 550; line-height: 1.3; }
.device-label small { display: block; margin-top: 7px; font: 0.75rem/1.2 var(--mono); color: #b7c2b9; }
.device-height { flex-shrink: 0; color: #b7c2b9; font: 0.75rem/1 var(--mono); }
.rack-device.selected .device-height { color: #f0c589; }
.rack-empty { background: transparent; border-style: dashed; border-color: #465149; }
.rack-legend { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 22px; color: var(--muted); font-size: 0.75rem; }
.rack-legend > span:first-child { display: flex; align-items: center; gap: 8px; }
.selection-key { display: inline-block; width: 9px; height: 9px; border: 1px solid #9d6a21; background: #f1debf; }
.device-panel { scroll-margin-top: 20px; }
.details { padding: 28px 28px 0; }
.device-heading { margin-bottom: 30px; }
.device-id { margin: 0 0 9px; font: 0.75rem/1.4 var(--mono); color: var(--accent); }
.device-heading h3 { margin: 0; max-width: 440px; font-size: clamp(1.5rem, 2.3vw, 1.875rem); line-height: 1.2; letter-spacing: -.7px; font-weight: 620; text-wrap: balance; }
.device-location { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 14px; color: var(--muted); font: 0.8125rem/1.5 var(--mono); }
.location-divider { color: #b6bcb3; }
.detail-section { margin-top: 24px; }
.detail-section h4 { margin: 0 0 12px; font-size: 0.875rem; font-weight: 650; }
.spec-list { margin: 0; }
.spec-list > div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 16px; border-top: 1px solid var(--rule); padding: 13px 0; font-size: 0.875rem; }
.spec-list dt { color: var(--muted); }
.spec-list dd { margin: 0; overflow-wrap: anywhere; }
.services-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0; padding: 0; }
.services-list li { font-size: 0.875rem; padding-left: 12px; position: relative; }
.services-list li::before { content: ""; position: absolute; width: 4px; height: 4px; left: 0; top: .65em; background: #92998d; }
.notes-section p { margin: 0; color: var(--muted); font-size: 0.875rem; line-height: 1.65; overflow-wrap: anywhere; }
.monitoring-note { display: flex; align-items: flex-start; gap: 10px; margin: 28px -28px 0; padding: 18px 28px; background: #f8f9f6; border-top: 1px solid var(--rule); }
.monitoring-note p { margin: 0; font-size: 0.8125rem; }
.monitoring-note small { display: block; color: var(--muted); font-size: 0.75rem; margin-top: 3px; }
.status-marker { width: 8px; height: 8px; border: 1.5px solid #7c8578; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.back-to-rack { display: none; }
.empty-state { padding: 36px 28px; color: var(--muted); }
.page-footer { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; margin-top: 24px; color: var(--muted); font-size: 0.75rem; }
.inventory-source { max-width: 580px; }
.inventory-source summary { cursor: pointer; padding: 4px 0; font-size: 0.8125rem; }
.inventory-source p { line-height: 1.6; margin: 10px 0; }
.page-footer > span { padding-top: 4px; flex-shrink: 0; }
@media (min-width: 1100px) {
    .device-panel { position: sticky; top: 24px; }
}
@media (max-width: 1000px) {
    .rack { --unit-size: 2.625rem; }
    .header-inner { padding-inline: 28px; }
    .app { padding: 32px 28px 24px; }
    .workspace { gap: 20px; grid-template-columns: minmax(300px, 1fr) minmax(0, 1fr); }
    .rack-summary { gap: 20px; }
    .rack-summary > div { padding-left: 20px; }
    .rack-stage { padding-inline: 14px; }
    .rack-device { padding-inline: 10px; }
    .details { padding: 24px 22px 0; }
    .monitoring-note { margin-inline: -22px; padding-inline: 22px; }
    .detail-caption { display: none; }
    .rack-legend { flex-wrap: wrap; }
    .spec-list > div { grid-template-columns: 76px minmax(0, 1fr); gap: 12px; }
}
@media (max-width: 760px) {
    .header-inner { min-height: 64px; padding-inline: 20px; }
    .header-context { display: none; }
    .app { padding: 28px 20px 20px; }
    .page-heading { display: block; margin-bottom: 24px; }
    .rack-summary { margin-top: 24px; gap: 28px; }
    .rack-summary > div { padding-left: 24px; }
    .rack-summary > div:first-child { border: 0; padding-left: 0; }
    .rack-summary dd { font-size: 1.5rem; }
    .workspace { display: block; }
    .rack { --unit-size: 2.875rem; }
    .rack-device { margin-block: 1px; }
    .rack-panel { margin-bottom: 20px; scroll-margin-top: 20px; }
    .rack-stage { padding-inline: 18px; }
    .rack-device { padding-inline: 12px; }
    .device-label { font-size: 0.875rem; }
    .device-height { font-size: 0.75rem; }
    .back-to-rack { display: inline; font-size: 0.8125rem; text-decoration: none; }
    .device-heading h3 { font-size: 1.6875rem; }
    .page-footer { display: block; }
    .page-footer > span { display: block; margin-top: 18px; }
}
@media (max-width: 380px) {
    .app { padding-inline: 12px; }
    .rack-stage { padding-inline: 10px; }
    .rack { column-gap: 8px; grid-template-columns: 24px minmax(0, 1fr); }
    .rack-device { padding-inline: 8px; gap: 6px; }
    .device-label { font-size: 0.8125rem; }
    .device-height { display: none; }
    .panel-header { padding-inline: 18px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}
@media (forced-colors: active) {
    .rack-device.selected { border: 3px solid Highlight; }
    .selection-key { background: Highlight; }
}