/* Elevation — network documentation
   Palette and type are drawn from the subject: rack elevation drawings,
   engraved patch-panel labels, and the amber of a link light. */

:root {
  --ink:        #0d1521;  /* cabinet interior      */
  --steel:      #131f2f;  /* panel face            */
  --steel-deep: #0f1a28;  /* recessed              */
  --rule:       #243550;  /* rack rail             */
  --chalk:      #dbe6f2;  /* drawing ink on dark   */
  --dim:        #8296b0;
  --faint:      #5a6d88;
  --link:       #ffb347;  /* link light amber      */
  --signal:     #5ad1e0;  /* patched port cyan     */
  --alarm:      #ff8a6b;

  --u: 22px;              /* one rack unit         */
  --display: "Arial Narrow", "Helvetica Neue Condensed", "Roboto Condensed", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

/* The layout rules below set display on elements that are also toggled
   with the hidden attribute, and a class beats the browser default. Make
   hidden authoritative so nothing shows through before its turn. */
[hidden] { display: none !important; }


html, body {
  margin: 0; height: 100%;
  background: var(--ink); color: var(--chalk);
  font: 14px/1.45 var(--body);
  -webkit-text-size-adjust: 100%;
}

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea {
  font: inherit; width: 100%;
  background: var(--steel-deep); color: var(--chalk);
  border: 1px solid var(--rule); border-radius: 3px; padding: 7px 9px;
}
input[type="file"] { padding: 6px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

.mono { font-family: var(--mono); }
.lbl {
  display: block; font-family: var(--display);
  text-transform: uppercase; letter-spacing: .16em;
  font-size: 10px; color: var(--faint);
}
.muted { color: var(--faint); font-size: 11px; }
.warn { color: var(--alarm); font-size: 12px; }
.good { color: var(--signal); font-size: 12px; }

/* the wordmark is set like an engraved panel label */
.wordmark {
  font-family: var(--display); text-transform: uppercase;
  letter-spacing: .34em; font-weight: 700; margin: 0;
}
.wordmark.small { font-size: 15px; }

/* ---------------------------------------------------------- sign in */

.gate { position: fixed; inset: 0; display: grid; place-items: center; padding: 20px; }
.gate-card {
  width: 100%; max-width: 340px;
  background: var(--steel); border: 1px solid var(--rule); border-radius: 6px;
  padding: 26px 22px; display: flex; flex-direction: column; gap: 14px;
}
/* four stacked bars: a rack seen head-on */
.gate-mark { display: flex; flex-direction: column; gap: 3px; margin-bottom: 4px; }
.gate-mark i { height: 5px; background: var(--rule); border-radius: 1px; }
.gate-mark i:nth-child(2) { background: var(--link); width: 62%; }
.gate-mark i:nth-child(3) { width: 84%; }
.gate-mark i:nth-child(4) { width: 40%; }
.gate h1 { font-size: 21px; }
.gate-sub { margin: -8px 0 4px; color: var(--faint); font-size: 12px; }
.field { display: block; }
.field .lbl { margin-bottom: 4px; }
.gate-error { margin: 0; color: var(--alarm); font-size: 12px; }

/* ---------------------------------------------------------- chrome */

.app { position: fixed; inset: 0; display: flex; flex-direction: column; }

.topbar {
  flex: none; display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; background: var(--steel-deep);
  border-bottom: 1px solid var(--rule);
}
.topbar .spacer { flex: 1; }
.status { font-family: var(--mono); font-size: 11px; color: var(--faint); }

.btn {
  border: 1px solid var(--rule); border-radius: 3px;
  padding: 6px 10px; font-size: 12px; color: var(--dim); white-space: nowrap;
}
.btn:hover { border-color: var(--signal); color: var(--chalk); }
.btn.accent { border-color: var(--link); color: var(--link); }
.btn.primary { border-color: var(--link); color: var(--ink); background: var(--link); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); color: var(--ink); }
.btn.wide { width: 100%; padding: 9px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.searchbar { position: relative; flex: none; padding: 8px 14px; background: var(--steel-deep); border-bottom: 1px solid var(--rule); }
.results {
  position: absolute; left: 14px; right: 14px; top: 46px; z-index: 40;
  background: var(--steel); border: 1px solid var(--signal); border-radius: 4px;
  max-height: 320px; overflow-y: auto;
}

.notice {
  flex: none; padding: 10px 14px; font-size: 12px;
  background: #3d2c10; color: var(--link); border-bottom: 1px solid var(--link);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.notice .spacer { flex: 1; min-width: 160px; }
.notice input { max-width: 210px; }
.notice.bad { background: #3a1a14; color: var(--alarm); border-bottom-color: var(--alarm); }

/* ---------------------------------------------------------- layout */

.workspace { flex: 1; min-height: 0; display: grid; grid-template-columns: 240px minmax(0, 1fr) 340px; }
.pane { min-height: 0; overflow: auto; display: flex; flex-direction: column; }
.pane-tree { border-right: 1px solid var(--rule); }
.pane-detail { border-left: 1px solid var(--rule); }

.mobile-tabs { display: none; flex: none; background: var(--steel-deep); border-top: 1px solid var(--rule); }
.mobile-tabs button { flex: 1; padding: 11px 0; font-size: 12px; color: var(--faint); border-top: 2px solid transparent; }
.mobile-tabs button.on { color: var(--link); border-top-color: var(--link); }

@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
  .pane { display: none; border: 0; }
  .pane.on { display: flex; }
  .mobile-tabs { display: flex; }
}

/* ------------------------------------------------------------ tree */

.tree-head { padding: 12px 12px 6px; }
.node { display: flex; align-items: center; gap: 8px; width: 100%; text-align: left; padding: 6px 12px; color: var(--dim); }
.node:hover { background: #182640; color: var(--chalk); }
.node.on { background: #1b2b46; color: var(--chalk); box-shadow: inset 3px 0 0 var(--link); }
.node .count { margin-left: auto; font-size: 11px; color: var(--faint); }
.node-site { padding: 10px 12px 4px; font-weight: 600; }
.node-room { padding-left: 20px; color: var(--dim); }
.node-rack { padding-left: 32px; }
.inline-add { display: flex; gap: 6px; padding: 6px 12px 12px; }
.inline-add input { flex: 1; }
.inline-add button { border: 1px solid var(--rule); border-radius: 3px; padding: 0 10px; color: var(--dim); }

/* ------------------------------------------------- rack elevation */

.rack-wrap { padding: 16px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.rack-head { width: 100%; max-width: 520px; display: flex; align-items: center; gap: 10px; }
.rack-head h2 { margin: 0; font: 16px var(--mono); }
.rack-head .lbl { flex: 1; }
.face-switch { display: flex; gap: 6px; }
.face-switch button { border: 1px solid var(--rule); border-radius: 3px; padding: 5px 12px; font-size: 11px; color: var(--dim); }
.face-switch button.on { border-color: var(--link); color: var(--link); }

.rack {
  position: relative; width: 100%; max-width: 520px; padding: 0 26px;
  border: 1px solid var(--rule); border-radius: 4px;
  background: repeating-linear-gradient(
    to bottom, #111c2b 0, #111c2b calc(var(--u) - 1px),
    #182437 calc(var(--u) - 1px), #182437 var(--u));
}
.rail { position: absolute; top: 0; bottom: 0; width: 26px; left: 0; }
.rail.right { left: auto; right: 0; }
.rail span {
  position: absolute; right: 4px; font: 9px/var(--u) var(--mono); color: var(--faint);
}
.rail.right span { right: auto; left: 4px; }

.unit {
  position: absolute; left: 26px; right: 26px;
  display: flex; align-items: center; gap: 8px; padding: 0 8px;
  background: #1d2c44; border: 1px solid #2c3f5e; border-radius: 3px;
  font-family: var(--mono); cursor: grab; overflow: hidden; touch-action: none;
}
.unit:hover { border-color: var(--signal); }
.unit.on { border-color: var(--link); background: #26344b; }
.unit.lit { border-color: var(--link); box-shadow: inset 0 0 0 1px rgba(255,179,71,.35); }
.unit.full-depth { border-style: dashed; background: #16233a; }
.unit.dragging { opacity: .45; }
.unit .stripe { flex: none; width: 4px; align-self: stretch; margin: 3px 0; border-radius: 2px; }
.unit .name { flex: none; font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.unit .model { margin-left: auto; font-size: 10px; color: var(--faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.key { display: flex; flex-wrap: wrap; gap: 8px 14px; max-width: 520px; width: 100%; font-size: 10px; color: var(--faint); }
.key i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 5px; }

/* -------------------------------------------------------- detail */

.detail { padding: 14px; display: flex; flex-direction: column; gap: 14px; }
.stack { display: flex; gap: 8px; }
.stack > * { flex: 1; }
.card { border: 1px solid var(--rule); border-radius: 4px; padding: 12px; background: var(--steel); }
.blank-state { padding: 40px 20px; text-align: center; color: var(--faint); line-height: 1.6; }

.port-faces { display: flex; gap: 6px; margin-top: 8px; }
.port-faces button { flex: 1; border: 1px solid var(--rule); border-radius: 3px; padding: 5px 0; font-size: 11px; color: var(--dim); }
.port-faces button.on { border-color: var(--link); color: var(--link); }

.ports { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); gap: 4px; margin-top: 8px; }
.port {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--rule); border-radius: 2px; background: var(--steel-deep);
  font: 10px var(--mono); color: var(--faint);
}
.port:hover { border-color: var(--signal); }
.port.patched { background: #12303a; border-color: #2f6b78; color: var(--signal); }
.port.lit { background: #3d2c10; border-color: var(--link); color: var(--link); }
.port.pending { border-color: var(--link); color: var(--link); }

/* the run: a vertical schematic, the signature element */
.run { border: 1px solid var(--link); border-radius: 4px; background: #241c10; padding: 10px; }
.hop { display: flex; gap: 9px; font-size: 12px; }
.hop .spine { position: relative; flex: none; width: 9px; display: flex; justify-content: center; }
.hop .spine::before { content: ""; position: absolute; top: 0; bottom: 0; width: 1px; background: #5b4520; }
.hop .bead { z-index: 1; width: 7px; height: 7px; margin-top: 5px; border-radius: 50%; background: var(--link); }
.hop.through .bead { background: none; border: 1px solid #7a5f2c; }
.hop.segment .bead { background: none; }
.hop .body { flex: 1; min-width: 0; padding-bottom: 9px; }
.hop .where { font-family: var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hop .under { font: 11px var(--mono); color: var(--faint); }
.hop.segment .body { font: 11px var(--mono); color: var(--link); }
.jump { font-size: 11px; color: var(--signal); border-bottom: 1px dotted #2f6b78; }

/* --------------------------------------------------------- modal */

.modal { position: fixed; inset: 0; z-index: 60; background: rgba(5,10,18,.74); display: flex; justify-content: center; align-items: flex-start; padding: 16px; overflow: auto; }
.sheet {
  width: 100%; max-width: 760px; margin-top: 4vh; max-height: 88vh;
  background: var(--steel); border: 1px solid var(--rule); border-radius: 6px;
  display: flex; flex-direction: column; overflow: hidden;
}
.sheet > header { flex: none; display: flex; align-items: center; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--rule); }
.sheet > header .lbl { color: var(--chalk); font-size: 12px; }
.sheet-body { overflow: auto; padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.sheet-list { overflow: auto; flex: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--rule); }
.chip { border: 1px solid var(--rule); border-radius: 99px; padding: 4px 10px; font-size: 11px; color: var(--dim); }
.chip.on { border-color: var(--link); color: var(--link); }

.row-item { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; padding: 10px 14px; border-bottom: 1px solid #1b2840; }
.row-item:hover { background: #182640; }
.row-item.on { background: #1b2b46; }
.row-item .stripe { flex: none; width: 4px; height: 26px; border-radius: 2px; }
.row-item .text { flex: 1; min-width: 0; }
.row-item .over { font: 11px var(--mono); color: var(--faint); }
.row-item .main { font: 13px var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-item .spec { font: 11px var(--mono); color: var(--dim); text-align: right; white-space: nowrap; }
.sheet-foot { flex: none; padding: 12px 14px; background: var(--steel-deep); border-top: 1px solid var(--rule); }

textarea.dump { min-height: 260px; resize: vertical; font: 11px var(--mono); }

/* --------------------------------------------------- print sheet */

.paper { background: #fff; color: #111; padding: 24px; overflow: auto; }
.paper h1 { font-size: 17px; margin: 0 0 3px; }
.paper h2 { font-size: 13px; margin: 20px 0 8px; border-bottom: 1px solid #999; padding-bottom: 3px; }
.paper .meta { font-size: 11px; color: #555; margin: 0 0 10px; }
.paper table { border-collapse: collapse; width: 100%; font-size: 10px; margin-bottom: 14px; }
.paper th, .paper td { border: 1px solid #bbb; padding: 3px 5px; text-align: left; vertical-align: top; }
.paper th { background: #eee; }
.paper .elev { display: inline-block; vertical-align: top; width: 232px; margin: 0 14px 14px 0; border: 1px solid #333; }
.paper .elev .cap { font-size: 11px; font-weight: 700; padding: 3px 5px; background: #eee; border-bottom: 1px solid #333; }
.paper .elev .slot { display: flex; font-size: 9px; line-height: 13px; min-height: 13px; border-bottom: 1px solid #ddd; }
.paper .elev .slot .n { flex: none; width: 20px; padding-right: 4px; text-align: right; color: #666; border-right: 1px solid #ddd; }
.paper .elev .slot .d { padding-left: 5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.paper .elev .slot.filled { background: #f0f0f0; font-weight: 600; }

@media print {
  body > *:not(#modal) { display: none !important; }
  #modal { position: static; background: #fff; padding: 0; display: block; overflow: visible; }
  .sheet { max-width: none; max-height: none; margin: 0; border: 0; border-radius: 0; display: block; }
  .sheet > header, .no-print { display: none !important; }
  .paper { padding: 0; }
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }