:root {
  --bg: #eef1f4; --card: #ffffff; --text: #1f2933; --muted: #64748b; --border: #d9dee5;
  --accent: #0f766e; --accent-fg: #ffffff; --accent-soft: #dff3f0;
  --danger: #b91c1c; --danger-soft: #fee2e2; --warn: #b45309; --warn-soft: #fef3c7; --ok: #15803d; --ok-soft: #dcfce7; --info-soft: #e0ecff; --info: #1d4ed8;
  --sidebar: #0f1c24; --sidebar-text: #c6d2da; --sidebar-active: #17343b; --sidebar-muted: #6f8593;
  --row-hover: #f3f6f8; --input-bg: #ffffff; --overlay: rgba(10, 18, 24, .55);
  --shadow: 0 1px 2px rgba(15, 28, 36, .06), 0 1px 8px rgba(15, 28, 36, .04);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: "Segoe UI", "Noto Sans Thai", "Sarabun", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1317; --card: #172129; --text: #e3eaef; --muted: #8fa2b0; --border: #2a3a45;
    --accent: #2dd4bf; --accent-fg: #06201c; --accent-soft: #11343a;
    --danger: #f87171; --danger-soft: #3b1a1d; --warn: #fbbf24; --warn-soft: #3a2d10; --ok: #4ade80; --ok-soft: #12321f; --info-soft: #172c4d; --info: #7cb0ff;
    --sidebar: #0a1116; --sidebar-text: #b4c3cd; --sidebar-active: #15303a; --sidebar-muted: #5f7686;
    --row-hover: #1d2a33; --input-bg: #101a20; --overlay: rgba(0, 0, 0, .65);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 var(--sans); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 10px; }
h1.mono { font-size: 20px; }
.page-head > div:first-child { flex: 1 1 auto; min-width: 0; }
.mono { font-family: var(--mono); font-size: 12.5px; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: 236px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--sidebar); color: var(--sidebar-text); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { padding: 16px 18px 12px; font-weight: 700; font-size: 17px; color: #fff; letter-spacing: .3px; }
.brand small { display: block; font-weight: 400; font-size: 11px; color: var(--sidebar-muted); letter-spacing: 0; }
.nav { flex: 1; padding: 4px 8px 12px; }
.nav-group { margin-top: 12px; }
.nav-group h4 { margin: 0 10px 4px; font-size: 10.5px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--sidebar-muted); }
.nav a { display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: 6px; color: var(--sidebar-text); }
.nav a:hover { background: rgba(255, 255, 255, .06); text-decoration: none; }
.nav a.active { background: var(--sidebar-active); color: #fff; box-shadow: inset 3px 0 0 var(--accent); }
.nav svg, .ic { width: 17px; height: 17px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.userbox { padding: 12px 14px; border-top: 1px solid rgba(255, 255, 255, .08); display: flex; align-items: center; gap: 8px; }
.userbox .who { flex: 1; min-width: 0; }
.userbox .who b { display: block; color: #fff; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.userbox .who span { font-size: 11px; color: var(--sidebar-muted); }
.userbox button { background: transparent; border: 1px solid rgba(255, 255, 255, .22); color: var(--sidebar-text); border-radius: 6px; padding: 4px 10px; cursor: pointer; font: inherit; font-size: 12px; }
.userbox button:hover { background: rgba(255, 255, 255, .1); }
main { padding: 20px 24px 40px; min-width: 0; }
.page-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 16px; }
.page-head h1 { flex: 1 1 auto; }
.crumb { font-size: 12px; color: var(--muted); margin-bottom: 2px; }

/* ---------- cards / grid ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); padding: 14px 16px; min-width: 0; }
.card > h2 { display: flex; align-items: center; gap: 8px; }
.card > h2 .spacer { flex: 1; }
.grid { display: grid; gap: 14px; margin-bottom: 14px; align-items: stretch; }
.grid > .card { height: 100%; }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat b { display: block; font-size: 28px; line-height: 1.1; font-family: var(--mono); }
.stat span { color: var(--muted); }
.kv { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 5px 12px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.bar { display: flex; height: 14px; border-radius: 7px; overflow: hidden; background: var(--border); margin: 8px 0; }
.bar i { display: block; height: 100%; }
.seg-in_use { background: #16a34a; } .seg-spare { background: #3b82f6; } .seg-reserved { background: #f59e0b; } .seg-broken { background: #dc2626; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 12px; color: var(--muted); }
.legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; border-bottom: 1px dashed var(--border); }
.list li:last-child { border-bottom: 0; }

/* ---------- buttons / forms ---------- */
button, .btn { font: inherit; cursor: pointer; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); padding: 6px 12px; line-height: 1.3; }
button:hover { background: var(--row-hover); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 600; }
button.primary:hover { filter: brightness(1.08); background: var(--accent); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.danger:hover { background: var(--danger-soft); }
button.sm { padding: 2px 8px; font-size: 12px; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input, select, textarea { font: inherit; color: var(--text); background: var(--input-bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 9px; width: 100%; min-width: 0; }
input[type=checkbox], input[type=radio] { width: auto; }
input:disabled, select:disabled, textarea:disabled { background: var(--row-hover); color: var(--muted); }
textarea { min-height: 70px; resize: vertical; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.toolbar input[type=search] { max-width: 280px; }
.toolbar select { width: auto; max-width: 180px; }
.toolbar .grow { flex: 1; }
label.field { display: block; }
label.field > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 2px; }
label.field > span em { color: var(--danger); font-style: normal; }
label.field small { display: block; color: var(--muted); font-size: 11px; margin-top: 2px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 14px; }
.form-grid .full { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: 8px; padding-top: 20px; }
.check.opt { padding-top: 6px; }

/* ---------- table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--card); }
.card .table-wrap { border: 0; border-radius: 0; background: transparent; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 7px 10px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--row-hover); white-space: nowrap; position: sticky; top: 0; }
tbody tr:last-child td { border-bottom: 0; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--row-hover); }
td.act { white-space: nowrap; text-align: right; }
td.act button { margin-left: 3px; }
td.clip { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pager { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 10px; color: var(--muted); }

/* ---------- badges ---------- */
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 11.5px; background: var(--row-hover); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.badge.ok, .b-active, .b-in_use, .b-primary { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.badge.warn, .b-reserved, .b-rma, .b-spare { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.bad, .b-broken, .b-retired { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge.info, .b-trunk, .b-routed, .b-ha, .b-secondary { background: var(--info-soft); color: var(--info); border-color: transparent; }
.b-spare { background: var(--info-soft); color: var(--info); }
.alert { padding: 8px 12px; border-radius: 8px; background: var(--warn-soft); color: var(--warn); margin-bottom: 10px; }
.alert.bad { background: var(--danger-soft); color: var(--danger); }
.empty { padding: 24px; text-align: center; color: var(--muted); }

/* ---------- modal / toast / combobox ---------- */
.overlay { position: fixed; inset: 0; background: var(--overlay); display: flex; align-items: flex-start; justify-content: center; padding: 5vh 14px; z-index: 50; overflow-y: auto; }
.modal { background: var(--card); border-radius: 12px; width: 100%; max-width: 640px; box-shadow: 0 20px 50px rgba(0, 0, 0, .35); display: flex; flex-direction: column; }
.modal.wide { max-width: 960px; }
.modal-head { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.modal-head h2 { margin: 0; font-size: 16px; }
.modal-body { padding: 16px 18px; }
.modal-foot { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; gap: 8px; align-items: center; }
.modal-foot .grow { flex: 1; }
.form-error { color: var(--danger); background: var(--danger-soft); padding: 7px 10px; border-radius: 6px; margin-bottom: 10px; }
#toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 80; }
.toast { background: var(--text); color: var(--bg); padding: 9px 14px; border-radius: 8px; box-shadow: var(--shadow); max-width: 360px; }
.toast.bad { background: var(--danger); color: #fff; }
.combo { position: relative; }
.combo input { padding-right: 26px; }
.combo .x { position: absolute; right: 2px; top: 2px; border: 0; background: transparent; padding: 3px 7px; color: var(--muted); }
.combo-list { position: fixed; z-index: 70; background: var(--card); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 8px 24px rgba(0, 0, 0, .25); max-height: 260px; overflow-y: auto; list-style: none; margin: 0; padding: 4px; }
.combo-list li { padding: 5px 9px; border-radius: 5px; cursor: pointer; font-size: 13px; }
.combo-list li.on, .combo-list li:hover { background: var(--accent-soft); }
.combo-list li.none { color: var(--muted); cursor: default; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { width: 100%; max-width: 360px; }
.login-card h1 { margin-bottom: 4px; }
.login-card label.field { margin-top: 12px; }
.login-card button { width: 100%; margin-top: 16px; padding: 9px; }

/* ---------- fiber ---------- */
.col-blue { background: #1d5fd6; } .col-orange { background: #f97316; } .col-green { background: #16a34a; } .col-brown { background: #8a4b1f; }
.col-slate { background: #64748b; } .col-white { background: #f8fafc; box-shadow: inset 0 0 0 1px #94a3b8; } .col-red { background: #dc2626; } .col-black { background: #111827; }
.col-yellow { background: #facc15; } .col-violet { background: #8b5cf6; } .col-rose { background: #fb7185; } .col-aqua { background: #22d3ee; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: -1px; margin-right: 5px; }
.swatch:not([class*="col-"]) { background: var(--border); }
td .mono { white-space: nowrap; }
.core-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 8px; }
.core { position: relative; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; cursor: pointer; background: var(--card); padding: 0 0 5px; text-align: center; font: inherit; color: var(--text); }
.core:hover { border-color: var(--accent); background: var(--accent-soft); }
.core .stripe { display: block; height: 10px; }
.core b { display: block; font-family: var(--mono); font-size: 14px; padding: 4px 0 0; }
.core small { display: block; font-size: 10px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding: 0 3px; }
.core.broken { background-image: repeating-linear-gradient(135deg, transparent 0 6px, rgba(220, 38, 38, .35) 6px 9px); }
.core .mark { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; }
.core.in_use .mark { background: #16a34a; } .core.reserved .mark { background: #f59e0b; } .core.spare .mark, .core.broken .mark { background: transparent; }

/* ---------- trace ---------- */
.trace { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 0; margin: 6px 0 14px; }
.tnode { border: 1.5px solid var(--accent); border-radius: 8px; padding: 6px 10px; background: var(--card); min-width: 120px; }
.tnode.passive { border-style: dashed; border-color: var(--muted); }
.tnode.end { background: var(--accent-soft); }
.tnode b { display: block; }
.tnode span { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.tedge { display: flex; flex-direction: column; align-items: center; min-width: 90px; padding: 0 6px; text-align: center; font-size: 11.5px; color: var(--muted); }
.tedge i { display: block; height: 2px; width: 100%; margin: 3px 0; position: relative; }
.tedge i:not([class*="col-"]) { background: var(--muted); }
.tedge i::after { content: ""; position: absolute; right: -1px; top: -3px; border-left: 7px solid var(--muted); border-top: 4px solid transparent; border-bottom: 4px solid transparent; }
.tedge.core i { height: 5px; border-radius: 3px; }
.tedge.core i::after { display: none; }

/* ---------- topology ---------- */
.topo-box { position: relative; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.topo-box svg { display: block; width: 100%; height: 66vh; min-height: 420px; cursor: grab; touch-action: none; }
.topo-box svg.panning { cursor: grabbing; }
.topo-tip { position: absolute; pointer-events: none; background: var(--text); color: var(--bg); padding: 6px 10px; border-radius: 6px; font-size: 12px; max-width: 320px; z-index: 5; white-space: pre-line; }
.topo-legend { display: flex; flex-wrap: wrap; gap: 6px 18px; padding: 8px 12px; border-top: 1px solid var(--border); font-size: 12px; color: var(--muted); }
.topo-legend span { display: inline-flex; align-items: center; gap: 6px; }
.topo-legend svg { width: 28px; height: 8px; min-height: 0; cursor: default; display: inline-block; }
.tn rect, .tn polygon, .tn ellipse { stroke-width: 1.6; fill: var(--card); }
.tn { cursor: pointer; }
.tn text { fill: var(--text); font-size: 12px; font-family: var(--mono); pointer-events: none; }
.tn .abbr { font-weight: 700; font-size: 10.5px; font-family: var(--sans); }
.tn .sub { fill: var(--muted); font-size: 9.5px; }
.tn.external { opacity: .65; }
.tn.external rect, .tn.external polygon, .tn.external ellipse { stroke-dasharray: 5 3; }
.tn-fortigate rect { stroke: #dc2626; } .tn-fortigate .pill { fill: #dc2626; }
.tn-mikrotik polygon { stroke: #2563eb; } .tn-mikrotik .pill { fill: #2563eb; }
.tn-switch rect { stroke: #0f766e; } .tn-switch .pill { fill: #0f766e; }
.tn-access_point ellipse { stroke: #7c3aed; } .tn-access_point .pill { fill: #7c3aed; }
.tn-odf rect, .tn-patch_panel rect { stroke: #64748b; stroke-dasharray: 6 3; } .tn-odf .pill, .tn-patch_panel .pill { fill: #64748b; }
.tn-server rect, .tn-other rect { stroke: #a16207; } .tn-server .pill, .tn-other .pill { fill: #a16207; }
.tn .pill { stroke: none; }
.tn .abbr { fill: #fff; }
.tn .ha { fill: #ea580c; stroke: none; } .tn .hat { fill: #fff; font-size: 9px; font-weight: 700; font-family: var(--sans); }
.te path { fill: none; stroke-width: 2; stroke-linecap: round; }
.te .hit { stroke: transparent; stroke-width: 12; }
.te.ha path.line { stroke: #ea580c; stroke-dasharray: 7 5; stroke-width: 2.4; }
.te.fiber_path path.line { stroke: #f59e0b; stroke-width: 3; }
.te.fiber_sm path.line { stroke: #d97706; }
.te.fiber_mm path.line { stroke: #3b82f6; }
.te.utp path.line, .te.dac path.line, .te.other path.line { stroke: #8a97a3; }
.te.wireless path.line { stroke: #8a97a3; stroke-dasharray: 2 4; }
.te:hover path.line { stroke-width: 4; }
.te text { font-size: 9.5px; fill: var(--muted); font-family: var(--mono); paint-order: stroke; stroke: var(--card); stroke-width: 3px; pointer-events: none; }

/* ---------- audit ---------- */
.diff-old { text-decoration: line-through; color: var(--danger); }
.diff-new { color: var(--ok); }
.diff td { vertical-align: top; }
pre.val { margin: 0; white-space: pre-wrap; font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }
.hist-item { border-bottom: 1px solid var(--border); padding: 8px 0; }
.hist-item:last-child { border-bottom: 0; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 800px) {
  .shell { display: block; }
  .sidebar { position: static; height: auto; flex-direction: row; align-items: center; overflow-x: auto; overflow-y: hidden; }
  .brand { padding: 8px 12px; white-space: nowrap; }
  .brand small { display: none; }
  .nav { display: flex; gap: 2px; padding: 4px; flex: 1 0 auto; }
  .nav-group { display: flex; margin: 0; gap: 2px; }
  .nav-group h4 { display: none; }
  .nav a { white-space: nowrap; padding: 6px 10px; }
  .nav a.active { box-shadow: inset 0 -3px 0 var(--accent); }
  .userbox { border: 0; white-space: nowrap; }
  main { padding: 14px 12px 40px; }
  .g4, .g3, .g2 { grid-template-columns: minmax(0, 1fr); }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .kv { grid-template-columns: 96px minmax(0, 1fr); }
}

/* ---------- rack elevation ---------- */
.rack-wrap { overflow-x: auto; }
.rack-grid { display: grid; grid-template-columns: 38px minmax(280px, 900px); grid-auto-rows: 40px; gap: 2px; padding: 10px; background: #1b2730; border-radius: 8px; width: max-content; max-width: 100%; }
.rk-u { color: #8da0ae; font: 11px var(--mono); display: flex; align-items: center; justify-content: flex-end; padding-right: 6px; }
.rk-empty { border: 1px dashed #3a4c58; border-radius: 4px; background: transparent; color: #6f8593; font-size: 11px; text-align: left; padding: 0 10px; }
button.rk-empty:hover { background: #24343e; border-color: var(--accent); color: #fff; }
.rk-dev { display: flex; align-items: center; justify-content: space-between; gap: 10px; border-radius: 4px; padding: 2px 10px; background: var(--card); border-left: 5px solid #a16207; overflow: hidden; }
.rk-dev.tn-fortigate { border-left-color: #dc2626; } .rk-dev.tn-mikrotik { border-left-color: #2563eb; } .rk-dev.tn-switch { border-left-color: #0f766e; }
.rk-dev.tn-access_point { border-left-color: #7c3aed; } .rk-dev.tn-odf, .rk-dev.tn-patch_panel { border-left-color: #64748b; }
.rk-info { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rk-act { display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.rk-ports { display: flex; gap: 16px; align-items: center; flex: none; margin-left: auto; }
.pg { display: grid; grid-auto-flow: column; gap: 3px; align-items: center; justify-items: center; }
.pg.r2 { grid-template-rows: repeat(2, auto); }
.pt { --c: #94a3b8; position: relative; display: block; box-sizing: border-box; background: #0b1319; border: 2px solid var(--c); }
.pt.up { --c: #16a34a; background: #16a34a; } .pt.off { --c: #dc2626; background: #dc2626; }
.pt.rj45 { width: 16px; height: 13px; border-radius: 2px; }
.pt.rj45::after { content: ""; position: absolute; left: 3px; right: 3px; top: -4px; height: 3px; background: var(--c); border-radius: 1px 1px 0 0; }
.pt.sfp, .pt.sfpp, .pt.qsfp { width: 16px; height: 9px; border-radius: 1px; }
.pt.qsfp { width: 22px; }
.pt.sfp::after, .pt.sfpp::after, .pt.qsfp::after { content: ""; position: absolute; left: 2px; right: 2px; bottom: 1px; height: 1px; background: var(--c); filter: brightness(1.6); }
.pt.sfpp::before { content: ""; position: absolute; left: 3px; top: 1px; width: 2px; height: 2px; background: var(--c); filter: brightness(1.6); }
.pt.f-lc { width: 8px; height: 11px; border-radius: 1px; }
.pt.f-sc { width: 11px; height: 11px; border-radius: 1px; }
.pt.f-sc::after { content: ""; position: absolute; left: 2px; right: 2px; top: -4px; height: 3px; background: var(--c); }
.pt.f-st, .pt.f-fc { width: 12px; height: 12px; border-radius: 50%; }
.pt.f-st::after { content: ""; position: absolute; left: -4px; top: 2px; width: 3px; height: 3px; background: var(--c); }
.pt.f-fc::after { content: ""; position: absolute; left: 2px; top: 2px; width: 4px; height: 4px; border: 1px solid var(--c); filter: brightness(1.6); }
.pt.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot.pt-up { background: #16a34a; } .dot.pt-idle { background: #94a3b8; } .dot.pt-off { background: #dc2626; }
.lg-shapes { margin-top: 6px; gap: 6px 16px; }
.lg-shapes span { display: inline-flex; align-items: center; gap: 6px; }
.lg-shapes .pt { display: inline-block; }
.pg.rs { grid-auto-flow: row; }
.sm-sel { width: auto; font-size: 11px; padding: 1px 4px; max-width: 150px; }
.rk-dev[draggable="true"] { cursor: grab; }
.rk-dev.dragging { opacity: .35; }
.rk-ghost { pointer-events: none; z-index: 3; border-radius: 4px; display: flex; align-items: center; justify-content: center; font: 12px var(--mono); }
.rk-ghost.ok { background: rgba(22, 163, 74, .35); border: 2px solid #16a34a; color: #bbf7d0; }
.rk-ghost.bad { background: rgba(220, 38, 38, .3); border: 2px solid #dc2626; color: #fecaca; }

/* ---------- logos / device type icons ---------- */
.dev-ic { width: 18px; height: 18px; vertical-align: -4px; margin-right: 6px; color: #a16207; }
.dev-ic.t-fortigate { color: #dc2626; } .dev-ic.t-mikrotik { color: #2563eb; } .dev-ic.t-switch { color: #0f766e; }
.dev-ic.t-access_point { color: #7c3aed; } .dev-ic.t-odf, .dev-ic.t-patch_panel { color: #64748b; }
h1 .dev-ic { width: 26px; height: 26px; vertical-align: -5px; }
.hn { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.hn .dev-ic { margin-right: 0; }
.logo-sm { height: 20px; max-width: 56px; object-fit: contain; vertical-align: middle; }
.logo-rk { height: 22px; max-width: 64px; object-fit: contain; vertical-align: middle; margin-right: 6px; }
.logo-hd { height: 36px; max-width: 130px; object-fit: contain; }
.logo-prev { max-height: 90px; max-width: 220px; object-fit: contain; border: 1px solid var(--border); border-radius: 6px; padding: 6px; background: #fff; }
.rk-info .dev-ic { margin-right: 4px; }
.pg.blk { padding: 3px 5px; background: rgba(15, 28, 36, .1); border-radius: 3px; outline: 1px solid rgba(15, 28, 36, .22); }
.rk-ports { gap: 22px; }
/* ---- balanced rack layout: info | ports (centered) | actions ---- */
.rack-grid { width: 100%; max-width: 1180px; min-width: 860px; grid-template-columns: 38px minmax(0, 1fr); }
.rk-info { flex: 0 0 300px; width: 300px; }
.rk-ports { flex: 1 1 auto; justify-content: center; margin: 0; min-width: 0; overflow: hidden; }
.rk-act { flex: 0 0 330px; justify-content: flex-end; }
.rack-grid { min-width: 1100px; max-width: 1280px; }
.rk-info { flex-basis: 250px; width: 250px; }
.rk-act { flex-basis: 310px; }
.selbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 8px 10px; margin-bottom: 8px; background: var(--accent-soft); border-radius: 8px; }
td.ck, th.ck { width: 30px; padding-right: 0; }
tr.sel td { background: var(--accent-soft); }
.port-tip { position: fixed; z-index: 90; pointer-events: none; background: #0f1c24; color: #e3eaef; border: 1px solid #2a3a45; border-radius: 8px; padding: 8px 12px; font-size: 12px; min-width: 200px; max-width: 320px; box-shadow: 0 8px 24px rgba(0, 0, 0, .35); }
.port-tip h4 { margin: 0 0 6px; font: 600 13px var(--mono); }
.port-tip div { display: flex; justify-content: space-between; gap: 14px; padding: 1px 0; }
.port-tip div span { color: #8fa2b0; }
.port-tip div b { font-weight: 500; text-align: right; overflow-wrap: anywhere; }
.rk-move { border: 0; background: transparent; padding: 2px; line-height: 0; cursor: pointer; border-radius: 5px; margin-right: 4px; }
.rk-move:hover { background: var(--accent-soft); box-shadow: 0 0 0 2px var(--accent); }
.rk-move .dev-ic { margin-right: 0; }
.rk-dev.moving { outline: 2px solid var(--accent); box-shadow: 0 0 0 4px rgba(45, 212, 191, .3); }
.rack-grid.is-moving { cursor: crosshair; }
.rack-grid.is-moving .rk-empty { pointer-events: auto; }
.move-banner { display: flex; align-items: center; gap: 12px; padding: 8px 12px; margin-bottom: 12px; background: var(--accent-soft); border: 1px solid var(--accent); border-radius: 8px; }
.pt.hot { z-index: 5; transform: scale(1.5); outline: 2px solid #facc15; outline-offset: 1px; box-shadow: 0 0 0 4px rgba(250, 204, 21, .35); }
.port-tip .here { display: block; color: #facc15; font-size: 11px; margin-bottom: 2px; }
/* hover highlight: ไม่ขยาย/ไม่ถูกตัดขอบ */
.rk-ports { overflow: visible; }
.pt.hot { transform: none; z-index: 5; outline: 2px solid #facc15; outline-offset: 1px; box-shadow: none; filter: brightness(1.5); }

/* ---------- Room 3D ---------- */
.room-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 14px; align-items: start; }
.room-view { padding: 0; overflow: hidden; }
.room-view canvas { display: block; width: 100%; height: 600px; cursor: grab; touch-action: none; }
.room-hint { padding: 8px 14px; font-size: 12px; border-top: 1px solid var(--border); }
.room-side { min-width: 0; }
.rm-desk, .rm-kid { display: flex; align-items: center; gap: 6px; padding: 5px 8px; border-radius: 6px; cursor: pointer; }
.rm-kid { margin-left: 22px; }
.rm-desk:hover, .rm-kid:hover { background: var(--row-hover); }
.rm-desk.on, .rm-kid.on { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.rm-desk .dev-ic, .rm-kid .dev-ic { margin-right: 0; }
.dev-ic.t-computer { color: #0369a1; } .dev-ic.t-printer { color: #b45309; } .dev-ic.t-desk { color: #8f6a45; }
.tn-computer rect { stroke: #0369a1; } .tn-computer .pill { fill: #0369a1; } .tn-printer rect { stroke: #b45309; } .tn-printer .pill { fill: #b45309; }
.room-tools .grow { flex: 1; }
@media (max-width: 1000px) { .room-wrap { grid-template-columns: minmax(0, 1fr); } .room-view canvas { height: 460px; } }
pre.agent-cmd { background: var(--row-hover); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; margin: 6px 0; user-select: all; }
.live-dot { font-size: 11px; font-weight: 600; color: var(--muted); vertical-align: middle; letter-spacing: .5px; }
.live-dot.on { color: #16a34a; }
.agent-feat td { vertical-align: top; }
.agent-vers { display: flex; flex-wrap: wrap; gap: 6px; }
.hist-item ul { margin: 4px 0 0 18px; padding: 0; }
a.btn { display: inline-block; text-decoration: none; }
a.btn:hover { background: var(--row-hover); text-decoration: none; }
.ir-list { max-height: 340px; overflow-y: auto; }
.ir-list thead th { position: sticky; top: 0; background: var(--card); }