/* HydroDraft – drafting-sheet UI */
:root {
  --bg: #eef1f0;
  --paper: #fbfcfb;
  --panel: #ffffff;
  --ink: #1b2529;
  --muted: #5d6a6f;
  --line: #d3dbd9;
  --line-soft: #e5eae9;
  --accent: #0b6e75;
  --accent-ink: #ffffff;
  --accent-soft: #dcefee;
  --grid-minor: #e3e8e7;
  --grid-major: #cdd6d4;
  --wall: #3a4549;
  --roof: #8a969a;
  --cw: #1d6fd8;
  --hw: #d2412c;
  --san: #8a5a2b;
  --vent: #3b8c4a;
  --sw: #0e97a6;
  --fail: #c62828;
  --fail-soft: #fbe3e1;
  --warn: #b26a00;
  --warn-soft: #fcefd9;
  --ok: #2e7d4f;
  --ok-soft: #e0f1e6;
  --sel: #f0a500;
  --font-ui: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-head: "Barlow Semi Condensed", "Arial Narrow", "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0f1517; --paper: #141c1f; --panel: #182125; --ink: #e2eae8; --muted: #93a2a5;
    --line: #2b373b; --line-soft: #222c30; --accent: #46b9bf; --accent-ink: #062326; --accent-soft: #173a3d;
    --grid-minor: #1c2629; --grid-major: #28353a; --wall: #b9c5c7; --roof: #6d7a7e;
    --cw: #5b9cf0; --hw: #f06a52; --san: #c9965c; --vent: #6cc27b; --sw: #3cc7d4;
    --fail: #ff6b61; --fail-soft: #3b1d1c; --warn: #f0b04a; --warn-soft: #3a2c14; --ok: #5fcb8a; --ok-soft: #173325; --sel: #ffc233;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1517; --paper: #141c1f; --panel: #182125; --ink: #e2eae8; --muted: #93a2a5;
  --line: #2b373b; --line-soft: #222c30; --accent: #46b9bf; --accent-ink: #062326; --accent-soft: #173a3d;
  --grid-minor: #1c2629; --grid-major: #28353a; --wall: #b9c5c7; --roof: #6d7a7e;
  --cw: #5b9cf0; --hw: #f06a52; --san: #c9965c; --vent: #6cc27b; --sw: #3cc7d4;
  --fail: #ff6b61; --fail-soft: #3b1d1c; --warn: #f0b04a; --warn-soft: #3a2c14; --ok: #5fcb8a; --ok-soft: #173325; --sel: #ffc233;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.45 var(--font-ui);
  display: grid; grid-template-rows: auto minmax(0, 1fr);
}
button, input, select, textarea { font: inherit; color: inherit; }
button, .btn {
  background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  padding: 5px 10px; cursor: pointer; white-space: nowrap; line-height: 1.3;
}
button:hover, .btn:hover { border-color: var(--accent); }
button:focus-visible, .btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
button:disabled { opacity: .45; cursor: default; }
input[type="text"], input[type="number"], input:not([type]), select, textarea {
  background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 4px 7px; min-width: 0;
}
.num, td.n, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- top bar ---------- */
.topbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 7px; color: var(--accent); font: 700 20px/1 var(--font-head); letter-spacing: .02em; }
.brand span { color: var(--ink); }
.proj-name { font: 600 15px var(--font-ui); border-color: transparent !important; background: transparent !important; width: 16rem; max-width: 100%; }
.proj-name:hover, .proj-name:focus { border-color: var(--line) !important; background: var(--paper) !important; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 5px 12px; font: 600 13px var(--font-head); letter-spacing: .08em; }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; align-items: center; }
.actions .sep { width: 1px; height: 22px; background: var(--line); margin: 0 4px; }
.app-link { text-decoration: none; color: var(--muted); }
.app-link:hover { color: var(--ink); }

/* ---------- main grid ---------- */
.main { display: grid; grid-template-columns: 196px minmax(0, 1fr) 380px; min-height: 0; }
.tools { background: var(--panel); border-right: 1px solid var(--line); overflow-y: auto; padding: 10px 10px 24px; display: flex; flex-direction: column; gap: 14px; }
.tool-group h3, .panel h3 {
  font: 600 11px var(--font-head); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 6px;
}
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.tool {
  display: flex; align-items: center; gap: 6px; padding: 5px 6px; font-size: 12.5px; text-align: left;
  border-color: var(--line-soft); overflow: hidden; text-overflow: ellipsis;
}
.tool[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--ink); font-weight: 600; }
.tool svg { flex: none; }
.swatch { width: 16px; height: 4px; border-radius: 2px; flex: none; }
.sv-cw { background: var(--cw); } .sv-hw { background: var(--hw); } .sv-san { background: var(--san); height: 5px; }
.sv-vent { background: repeating-linear-gradient(90deg, var(--vent) 0 4px, transparent 4px 6px); }
.sv-sw { background: repeating-linear-gradient(90deg, var(--sw) 0 7px, transparent 7px 9px); }
.ic { width: 14px; height: 14px; flex: none; border: 1.6px solid var(--muted); border-radius: 2px; }
.ic-select { border: 0; background: linear-gradient(135deg, var(--muted) 0 50%, transparent 50%); clip-path: polygon(0 0, 100% 45%, 50% 55%, 40% 100%); }
.ic-pan { border-radius: 50%; }
.ic-wall { border: 0; background: var(--wall); height: 5px; }
.ic-roof { border-style: dashed; }
.ic-label { border: 0; font: 700 13px/14px var(--font-head); color: var(--muted); }
.ic-label::before { content: "Aa"; }

/* ---------- stage ---------- */
.stage { display: grid; grid-template-rows: auto minmax(0, 1fr); min-width: 0; min-height: 0; }
.stage-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 12px; flex-wrap: wrap; border-bottom: 1px solid var(--line); background: var(--paper); }
.level-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.level-tabs button { font: 600 12.5px var(--font-head); letter-spacing: .06em; text-transform: uppercase; padding: 4px 10px; }
.level-tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.toggles { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted); }
.toggles label { display: flex; gap: 5px; align-items: center; cursor: pointer; }
.canvas-wrap { position: relative; min-height: 0; overflow: hidden; background: var(--paper); }
#plan { width: 100%; height: 100%; display: block; touch-action: none; user-select: none; -webkit-user-select: none; }
#plan.cursor-cross { cursor: crosshair; }
#plan.cursor-grab { cursor: grab; }
.hint {
  position: absolute; left: 12px; top: 10px; max-width: calc(100% - 24px); font-size: 12.5px; color: var(--ink);
  background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line); border-radius: 4px; padding: 4px 9px; pointer-events: none;
}
.hint:empty { display: none; }
.hint kbd { font: 500 11px var(--font-mono); border: 1px solid var(--line); border-radius: 3px; padding: 0 4px; background: var(--paper); }
.hint .hint-btn { pointer-events: auto; margin-left: 8px; padding: 1px 8px; font-size: 12px; }
.zoom { position: absolute; right: 12px; top: 10px; display: flex; flex-direction: column; gap: 4px; }
.zoom button { width: 34px; padding: 4px 0; font-weight: 600; }
.titleblock {
  position: absolute; right: 12px; bottom: 12px; background: var(--panel); border: 1.5px solid var(--ink);
  font-size: 11px; display: grid; grid-template-columns: auto auto; min-width: 250px; max-width: calc(100% - 24px);
}
.titleblock > div { padding: 3px 7px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.titleblock .tb-k { font: 600 9.5px var(--font-head); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.titleblock .tb-name { grid-column: 1 / -1; font: 700 15px var(--font-head); letter-spacing: .02em; }
.titleblock .tb-scale { grid-column: 1 / -1; display: flex; align-items: center; gap: 8px; border-bottom: 0; }
.scalebar { display: flex; height: 6px; border: 1px solid var(--ink); }
.scalebar i { display: block; height: 100%; }
.scalebar i:nth-child(odd) { background: var(--ink); }

/* ---------- SVG plan ---------- */
.g-wall { fill: none; stroke: var(--wall); stroke-linecap: square; stroke-linejoin: miter; }
.g-roof { fill: var(--roof); fill-opacity: .07; stroke: var(--roof); stroke-dasharray: 6 4; }
.g-label { fill: var(--muted); font-family: var(--font-head); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.g-fx { fill: var(--paper); stroke: var(--ink); }
.g-fx-fill { fill: var(--ink); stroke: none; }
.g-fx-text { fill: var(--ink); font-family: var(--font-head); font-weight: 600; text-anchor: middle; dominant-baseline: central; }
.g-fx-tag { fill: var(--muted); font-family: var(--font-mono); text-anchor: middle; }
.g-pipe { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.p-cw { stroke: var(--cw); } .p-hw { stroke: var(--hw); } .p-san { stroke: var(--san); }
.p-vent { stroke: var(--vent); } .p-sw { stroke: var(--sw); }
.g-halo { fill: none; stroke: var(--fail); stroke-opacity: .28; stroke-linecap: round; }
.g-halo.warn { stroke: var(--warn); }
.g-seglabel { font-family: var(--font-mono); paint-order: stroke; stroke: var(--paper); stroke-linejoin: round; }
.t-cw { fill: var(--cw); } .t-hw { fill: var(--hw); } .t-san { fill: var(--san); } .t-sw { fill: var(--sw); } .t-vent { fill: var(--vent); }
.g-sel { fill: none; stroke: var(--sel); stroke-dasharray: 4 3; }
.g-handle { fill: var(--panel); stroke: var(--sel); }
.g-snap { fill: none; stroke: var(--accent); }
.g-draft { fill: none; stroke-dasharray: 5 4; stroke-linecap: round; }
.g-dim { fill: var(--ink); font-family: var(--font-mono); paint-order: stroke; stroke: var(--paper); }
.g-other-level { opacity: .18; pointer-events: none; }
.g-fixture-bad { fill: none; stroke: var(--fail); stroke-opacity: .7; }

/* ---------- right panel ---------- */
.panel { background: var(--panel); border-left: 1px solid var(--line); display: grid; grid-template-rows: auto auto minmax(0, 1fr); min-height: 0; }
.summary { padding: 12px 14px 10px; border-bottom: 1px solid var(--line); display: grid; gap: 10px; }
.status { display: flex; align-items: center; gap: 10px; }
.pill { display: inline-flex; align-items: center; gap: 5px; border-radius: 999px; padding: 2px 9px; font: 600 12px var(--font-ui); white-space: nowrap; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.fail { background: var(--fail-soft); color: var(--fail); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.ok, .pill.pass { background: var(--ok-soft); color: var(--ok); }
.pill.info { background: var(--accent-soft); color: var(--accent); }
.status .std { font-size: 11.5px; color: var(--muted); }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 12px; }
.kpi .k { font: 600 10px var(--font-head); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.kpi .v { font: 500 15px var(--font-mono); font-variant-numeric: tabular-nums; }
.kpi .v small { font-size: 11px; color: var(--muted); }
.tabs { display: flex; gap: 2px; padding: 0 8px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tabs button { flex: none; border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: transparent; padding: 8px 8px 7px; font-size: 13px; color: var(--muted); }
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }
.count { display: inline-block; min-width: 18px; border-radius: 9px; padding: 0 5px; font: 600 11px/17px var(--font-mono); background: var(--fail-soft); color: var(--fail); }
.count:empty { display: none; }
.count.zero { background: var(--ok-soft); color: var(--ok); }
.tab-body { overflow-y: auto; padding: 12px 14px 32px; display: flex; flex-direction: column; gap: 16px; }
.tab-body section { display: flex; flex-direction: column; gap: 8px; }
.form { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 6px 10px; align-items: center; }
.form label { font-size: 12.5px; color: var(--muted); }
.form .unit { display: flex; gap: 5px; align-items: center; }
.form .unit input { flex: 1; width: 100%; }
.form .unit span { font-size: 11.5px; color: var(--muted); min-width: 2.2em; }
.form input, .form select { width: 100%; }
.form .full { grid-column: 1 / -1; }
.note { font-size: 12px; color: var(--muted); margin: 0; }
.row { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-danger { color: var(--fail); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: 4px; }
table { border-collapse: collapse; width: 100%; font-size: 12px; }
th, td { padding: 4px 6px; border-bottom: 1px solid var(--line-soft); text-align: left; white-space: nowrap; }
th { font: 600 10.5px var(--font-head); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); background: var(--paper); position: sticky; top: 0; }
td.n, th.n { text-align: right; }
tr.fail td { background: var(--fail-soft); }
tr.warn td { background: var(--warn-soft); }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--accent-soft); }
.svc-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; vertical-align: 1px; }
.checks { display: flex; flex-direction: column; gap: 6px; list-style: none; margin: 0; padding: 0; }
.checks li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 8px; padding: 7px 9px; border: 1px solid var(--line-soft); border-radius: 4px; }
.checks li.clickable { cursor: pointer; }
.checks li.clickable:hover { border-color: var(--accent); }
.checks .cat { font: 600 10.5px var(--font-head); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.checks .msg { grid-column: 2; font-size: 13px; }
.checks .ref { grid-column: 2; font-size: 11px; color: var(--muted); }
.empty { color: var(--muted); font-size: 13px; }
.disclaimer { font-size: 12px; color: var(--muted); border-left: 3px solid var(--warn); padding: 6px 10px; background: var(--warn-soft); border-radius: 0 4px 4px 0; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; font-size: 12.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.palette-group { display: flex; flex-direction: column; }
.fx-list { display: grid; gap: 4px; }
#setForm { display: flex; flex-direction: column; gap: 16px; }
.fx-btn { display: flex; align-items: center; gap: 7px; padding: 4px 6px; font-size: 12.5px; border-color: var(--line-soft); text-align: left; width: 100%; white-space: normal; line-height: 1.2; }
.fx-btn[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); font-weight: 600; }
.fx-btn svg { flex: none; }

.toast { position: fixed; left: 50%; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--ink); color: var(--paper); padding: 7px 14px; border-radius: 4px; font-size: 13px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 10; }
.toast.show { opacity: 1; }
.print-report { display: none; }

@media (prefers-reduced-motion: reduce) { .toast { transition: none; } }

/* ---------- narrow screens ---------- */
@media (max-width: 1100px) {
  .main { grid-template-columns: 170px minmax(0, 1fr) 330px; }
}
@media (max-width: 860px) {
  body { display: block; height: auto; }
  html { height: auto; }
  .main { display: flex; flex-direction: column; }
  .tools { border-right: 0; border-bottom: 1px solid var(--line); flex-direction: row; overflow-x: auto; overflow-y: hidden; gap: 16px; padding: 8px 16px; }
  .tool-group, .palette-group { flex: none; }
  .tool-grid { grid-template-columns: repeat(5, auto); }
  #fixturePalette { display: flex; gap: 16px; }
  .palette-group .fx-list { display: grid; grid-auto-flow: column; grid-template-rows: repeat(2, auto); gap: 4px; }
  .stage { height: 62vh; min-height: 360px; }
  .panel { border-left: 0; border-top: 1px solid var(--line); }
  .titleblock { display: none; }
  .topbar { padding: 8px 16px; }
  .proj-name { width: 100%; order: 3; }
  .actions { margin-left: 0; }
}

/* ---------- print ---------- */
@media print {
  body { display: block; background: #fff; color: #000; }
  .topbar, .tools, .panel, .stage-bar, .zoom, .hint, .toast { display: none !important; }
  .main { display: block; }
  .canvas-wrap { height: 60vh; border: 1px solid #000; page-break-after: always; }
  .titleblock { display: grid; }
  .print-report { display: block; font-size: 11px; }
  .print-report h2 { font: 700 16px var(--font-head); margin: 14px 0 6px; }
  .print-report table { font-size: 10px; }
  .print-report th { position: static; }
}