/* ============================================================ tokens */
[hidden] { display: none !important; }
:root {
  --bg: #f4f3ef;
  --panel: #ffffff;
  --panel-2: #f9f8f5;
  --ink: #1c1c1e;
  --muted: #6c6b67;
  --faint: #a5a39d;
  --line: #e2e0da;
  --line-2: #ecebe6;
  --accent: #2459d6;
  --accent-ink: #ffffff;
  --accent-soft: #e6edfc;
  --focus: #2459d6;

  --hm-ink: #000;           /* lines over heat maps */
  --hm-dp: #1d4ed8;
  --hm-steel: #30363d;
  --t-line: #e0521f;        /* temperature */
  --dp-line: #2f74d0;       /* dew point / vapor */
  --psat-line: #9b8fe0;
  --danger: #c0352f;
  --danger-soft: rgba(210, 63, 63, .13);
  --warn: #935700;
  --warn-soft: rgba(217, 138, 28, .14);
  --ok: #1d7448;
  --ok-soft: rgba(43, 138, 94, .12);

  --air-out: #e9f1f8;
  --soil: #d9c3a5;
  --air-in: #f8f0e6;

  /* material swatches */
  --m-batt: #f1cf63;
  --m-stonewool: #bfc79f;
  --m-foam-blue: #a9cdea;
  --m-foam-white: #f2f2ee;
  --m-foam-pink: #f1b8c2;
  --m-polyiso: #e8dcae;
  --m-spray: #efe3b2;
  --m-cellulose: #b4ada0;
  --m-woodfiber: #b98a5e;
  --m-cork: #8f6142;
  --m-natural: #dcc06e;
  --m-earth: #b57f58;
  --m-osb: #d6a764;
  --m-plywood: #e3bb82;
  --m-wood: #d8ad78;
  --m-gypsum: #e9e7e2;
  --m-plaster: #e2dccf;
  --m-concrete: #b8b7b1;
  --m-brick: #b85a40;
  --m-stone: #aaa498;
  --m-steel: #8b929b;
  --m-cladding: #6f7680;
  --m-air: #f4f8fb;
  --m-vented: #eef3f7;
  --m-membrane: #3a3a3c;
  --m-smart: #2f74d0;
  --m-wrb: #f4f4f4;
  --m-pattern: rgba(0, 0, 0, .18);
  --m-excluded: rgba(255, 255, 255, .55);

  --s1: #2459d6; --s2: #d9480f; --s3: #2b8a5e; --s4: #8e44ad; --s5: #b7791f; --s6: #0f766e;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 4px 16px rgba(0, 0, 0, .05);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141416; --panel: #1d1d20; --panel-2: #232327; --ink: #f1f0ec; --muted: #a2a19c; --faint: #6e6d69;
    --line: #34343a; --line-2: #2a2a2f; --accent: #6c95f0; --accent-ink: #0f1420; --accent-soft: #1f2a44; --focus: #8eaef5;
    --t-line: #ff7a45; --dp-line: #5fa0ff; --psat-line: #a99cf0;
    --danger: #ff7a7a; --danger-soft: rgba(255, 107, 107, .16); --warn: #f0a53a; --warn-soft: rgba(240, 165, 58, .16);
    --ok: #4cc38a; --ok-soft: rgba(76, 195, 138, .14);
    --air-out: #1b2530; --air-in: #2a2219; --soil: #4a3b2a;
    --m-batt: #b99a3d; --m-stonewool: #8a936d; --m-foam-blue: #5d86a8; --m-foam-white: #8f8f8a; --m-foam-pink: #a8707b;
    --m-polyiso: #9c9068; --m-spray: #a39669; --m-cellulose: #7c766b; --m-woodfiber: #8a6442; --m-cork: #6b4630;
    --m-natural: #a68f45; --m-earth: #87593b; --m-osb: #a37a40; --m-plywood: #ad8a55; --m-wood: #a8814f;
    --m-gypsum: #8d8b86; --m-plaster: #8a8476; --m-concrete: #77766f; --m-brick: #8a3f2c; --m-stone: #6f6a60;
    --m-steel: #626a73; --m-cladding: #4d535b; --m-air: #1d242b; --m-vented: #1f272f; --m-membrane: #d6d6d0;
    --m-smart: #5fa0ff; --m-wrb: #c9c9c3; --m-pattern: rgba(0, 0, 0, .28); --m-excluded: rgba(20, 20, 22, .55);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 20px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141416; --panel: #1d1d20; --panel-2: #232327; --ink: #f1f0ec; --muted: #a2a19c; --faint: #6e6d69;
  --line: #34343a; --line-2: #2a2a2f; --accent: #6c95f0; --accent-ink: #0f1420; --accent-soft: #1f2a44; --focus: #8eaef5;
  --t-line: #ff7a45; --dp-line: #5fa0ff; --psat-line: #a99cf0;
  --danger: #ff7a7a; --danger-soft: rgba(255, 107, 107, .16); --warn: #f0a53a; --warn-soft: rgba(240, 165, 58, .16);
  --ok: #4cc38a; --ok-soft: rgba(76, 195, 138, .14);
  --air-out: #1b2530; --air-in: #2a2219; --soil: #4a3b2a;
  --m-batt: #b99a3d; --m-stonewool: #8a936d; --m-foam-blue: #5d86a8; --m-foam-white: #8f8f8a; --m-foam-pink: #a8707b;
  --m-polyiso: #9c9068; --m-spray: #a39669; --m-cellulose: #7c766b; --m-woodfiber: #8a6442; --m-cork: #6b4630;
  --m-natural: #a68f45; --m-earth: #87593b; --m-osb: #a37a40; --m-plywood: #ad8a55; --m-wood: #a8814f;
  --m-gypsum: #8d8b86; --m-plaster: #8a8476; --m-concrete: #77766f; --m-brick: #8a3f2c; --m-stone: #6f6a60;
  --m-steel: #626a73; --m-cladding: #4d535b; --m-air: #1d242b; --m-vented: #1f272f; --m-membrane: #d6d6d0;
  --m-smart: #5fa0ff; --m-wrb: #c9c9c3; --m-pattern: rgba(0, 0, 0, .28); --m-excluded: rgba(20, 20, 22, .55);
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 20px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

/* ============================================================ base */
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 14px/1.45 var(--font); -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
h2 { font-size: 13px; font-weight: 600; margin: 0; }
small { color: var(--muted); font-weight: 400; }
svg { display: block; }
.icon-btn svg, .brand svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.brand svg { fill: var(--accent); stroke: none; width: 20px; height: 20px; }

/* ============================================================ top bar */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px 20px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; letter-spacing: -.01em; margin: 0; }
.spacer { flex: 1; }
.tools { display: flex; align-items: center; gap: 8px; }

.city { position: relative; display: flex; align-items: center; gap: 8px; }
.city input {
  width: 300px; max-width: 58vw; padding: 7px 12px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--panel);
}
.zone-badge { font-size: 12px; font-weight: 600; padding: 3px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); white-space: nowrap; }
.zone-badge[data-src="computed"]::after { content: ' *'; }
.suggest {
  position: absolute; top: calc(100% + 4px); left: 0; width: 360px; max-width: 90vw; max-height: 360px; overflow: auto;
  margin: 0; padding: 4px; list-style: none; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); z-index: 30;
}
.suggest li { display: flex; justify-content: space-between; gap: 8px; padding: 7px 10px; border-radius: 6px; cursor: pointer; }
.suggest li[aria-selected="true"], .suggest li:hover { background: var(--accent-soft); }
.suggest li span { color: var(--muted); font-size: 12px; white-space: nowrap; }

.chip-btn, .seg button, .btn {
  padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel);
  font-weight: 500; white-space: nowrap;
}
.chip-btn:hover, .btn:hover { border-color: var(--faint); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.danger { color: var(--danger); }
.icon-btn { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 8px; border: 1px solid transparent; background: none; color: var(--muted); }
.icon-btn:hover:not(:disabled) { background: var(--panel); border-color: var(--line); color: var(--ink); }
.icon-btn:disabled { opacity: .35; cursor: default; }

.seg { display: inline-flex; padding: 2px; border-radius: 9px; background: var(--line-2); border: 1px solid var(--line); }
.seg button { border: 0; background: none; padding: 5px 10px; border-radius: 7px; color: var(--muted); }
.seg button[aria-checked="true"] { background: var(--panel); color: var(--ink); box-shadow: 0 1px 2px rgba(0, 0, 0, .12); }
.seg button:disabled { opacity: .4; cursor: default; }

.indoor { position: relative; }
.popover {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 30; width: 300px; padding: 14px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.popover label { display: block; margin-bottom: 12px; font-weight: 500; }
.popover output { float: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.popover input[type=range] { width: 100%; margin-top: 4px; }
.hint { color: var(--muted); font-size: 12px; margin: 0; }

/* ============================================================ layout */
.col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 16px; padding: 16px 20px 40px; max-width: 1500px; margin: 0 auto; }
.stage, .side, .guidance, .sim { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
.stage { padding: 16px; min-width: 0; }
.side { padding: 14px; align-self: start; position: sticky; top: 70px; max-height: calc(100vh - 86px); overflow: auto; }

/* ============================================================ ribbon */
.ribbon { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.tile { padding: 10px 12px; border-radius: var(--radius); background: var(--panel-2); border: 1px solid var(--line-2); min-width: 0; }
.tile .k { font-size: 12px; color: var(--muted); }
.tile .v { font-size: 24px; font-weight: 650; letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .s { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile.bad { background: var(--danger-soft); border-color: transparent; }
.tile.bad .v { color: var(--danger); }
.tile.good .v { color: var(--ok); }
.bar { height: 6px; border-radius: 3px; background: var(--line); margin-top: 6px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }

/* ============================================================ stage */
.stage-bar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
.toggle { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.legend { margin-left: auto; display: flex; gap: 14px; color: var(--muted); font-size: 12px; }
.lg::before { content: ''; display: inline-block; width: 16px; height: 0; border-top: 2.5px solid; vertical-align: middle; margin-right: 6px; }
.lg-t::before { border-color: var(--t-line); }
.lg-dp::before { border-top-style: dashed; border-color: var(--dp-line); }
.film { fill: var(--ink); fill-opacity: .07; }
.lg-film::before { height: 10px; border: 0; background: var(--ink); opacity: .14; border-radius: 2px; }
.lg-c::before { height: 10px; border: 0; background: var(--danger-soft); outline: 1.5px solid var(--danger); border-radius: 2px; }

.figure { position: relative; user-select: none; touch-action: pan-y; }
.figure svg { width: 100%; overflow: visible; }

/* SVG classes */
.ax { stroke: var(--line); stroke-width: 1; }
.ax-t { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.ax-label { fill: var(--muted); font-size: 11px; font-weight: 600; }
.zone-out { fill: var(--air-out); }
.zone-in { fill: var(--air-in); }
.zone-t { fill: var(--muted); font-size: 11px; }
.zone-v { fill: var(--ink); font-size: 15px; font-weight: 650; font-variant-numeric: tabular-nums; }
.layer { cursor: grab; }
.layer:active { cursor: grabbing; }
.layer .outline { fill: none; stroke: rgba(0, 0, 0, .18); stroke-width: 1; }
.layer.sel .outline { stroke: var(--accent); stroke-width: 2.5; }
.layer:hover .outline { stroke: var(--accent); }
.layer.dragging { opacity: .85; }
.layer .excluded { fill: var(--m-excluded); }
.layer-name { font-size: 11px; font-weight: 600; fill: var(--ink); pointer-events: none; paint-order: stroke; stroke: color-mix(in srgb, var(--panel) 70%, transparent); stroke-width: 3px; }
.drop-ind { stroke: var(--accent); stroke-width: 3; }
.ins-btn { cursor: pointer; opacity: 0; transition: opacity .12s; }
.figure:hover .ins-btn, .ins-btn:focus { opacity: 1; }
.ins-btn circle { fill: var(--accent); }
.ins-btn path { stroke: var(--accent-ink); stroke-width: 2; }
.c-t { fill: none; stroke: var(--t-line); stroke-width: 2.5; stroke-linejoin: round; }
.c-dp { fill: none; stroke: var(--dp-line); stroke-width: 2; stroke-dasharray: 5 4; stroke-linejoin: round; }
.c-pv { fill: none; stroke: var(--dp-line); stroke-width: 2; stroke-linejoin: round; }
.c-ps { fill: none; stroke: var(--psat-line); stroke-width: 2; stroke-dasharray: 2 3; }
.c-rh { fill: none; stroke: var(--ink); stroke-width: 2; stroke-linejoin: round; }
.c-zone { fill: var(--danger-soft); stroke: var(--danger); stroke-width: 1.5; }
.c-plane { stroke: var(--danger); stroke-width: 3; }
.c-plane-glow { stroke: var(--danger-soft); stroke-width: 12; }
.c-label { fill: var(--danger); font-size: 11px; font-weight: 700; }
.band-warn { fill: var(--warn-soft); }
.band-bad { fill: var(--danger-soft); }
.probe { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 2 3; opacity: .5; }
.probe-dot-t { fill: var(--t-line); stroke: var(--panel); stroke-width: 2; }
.probe-dot-dp { fill: var(--dp-line); stroke: var(--panel); stroke-width: 2; }
.vent-arrow { stroke: var(--muted); stroke-width: 1.2; fill: none; }
.pat-stroke { stroke: var(--m-pattern); stroke-width: 1.2; fill: none; }
.pat-dot { fill: var(--m-pattern); }

.tip {
  position: fixed; z-index: 50; pointer-events: none; padding: 8px 10px; border-radius: 8px; font-size: 12px;
  background: var(--ink); color: var(--panel); box-shadow: var(--shadow); max-width: 260px; line-height: 1.5;
}
.tip b { font-weight: 650; }
.tip .row { display: flex; justify-content: space-between; gap: 14px; font-variant-numeric: tabular-nums; }

/* ============================================================ months */
.months { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)) auto; gap: 4px; margin-top: 10px; align-items: end; }
.mo { display: flex; flex-direction: column; align-items: stretch; gap: 3px; padding: 4px 2px 5px; border: 1px solid transparent; border-radius: 8px; background: none; color: var(--muted); font-size: 12px; }
.mo:hover { background: var(--panel-2); }
.mo[aria-checked="true"] { background: var(--accent-soft); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); font-weight: 600; }
.mo .bars { position: relative; height: 22px; }
.mo .temp { position: absolute; left: 50%; width: 6px; height: 6px; margin-left: -3px; border-radius: 50%; background: var(--t-line); opacity: .7; }
.mo .cond { position: absolute; bottom: 0; left: 18%; right: 18%; background: var(--danger); border-radius: 2px 2px 0 0; min-height: 0; }
.play { align-self: center; }
.caption { color: var(--muted); font-size: 12px; margin: 10px 2px 0; }
.caption b { color: var(--ink); font-weight: 600; }

/* ============================================================ side: layer list + inspector */
.side-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 8px; }
.layer-list { list-style: none; margin: 0 0 14px; padding: 0; border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; }
.layer-list li { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 6px 10px; border-top: 1px solid var(--line-2); cursor: pointer; }
.layer-list li:first-child { border-top: 0; }
.layer-list li:hover { background: var(--panel-2); }
.layer-list li[aria-selected="true"] { background: var(--accent-soft); }
.layer-list li.excluded .nm { color: var(--muted); font-style: italic; }
.layer-list .sw { width: 14px; height: 14px; border-radius: 3px; border: 1px solid rgba(0, 0, 0, .15); }
.layer-list .sw.thin { height: 4px; }
.layer-list .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.layer-list .th { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.add-row { display: flex; gap: 8px; margin: -6px 0 14px; }
.add-row .btn { flex: 1; font-size: 13px; }

.inspector { border-top: 1px solid var(--line); padding-top: 14px; }
.inspector:empty { display: none; }
.insp-title { display: flex; gap: 8px; align-items: flex-start; }
.insp-title button.mat {
  flex: 1; text-align: left; padding: 8px 10px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--panel-2);
  font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 8px;
}
.insp-title button.mat::after { content: '▾'; color: var(--muted); font-weight: 400; }
.badge { display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 999px; background: var(--line-2); color: var(--muted); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.smart { background: var(--accent-soft); color: var(--accent); }
.meta { color: var(--muted); font-size: 12px; margin: 6px 2px 12px; }
.field { margin: 14px 0; }
.field > .lab { display: flex; justify-content: space-between; align-items: baseline; font-weight: 600; margin-bottom: 6px; }
.field > .lab output { font-weight: 650; font-size: 16px; font-variant-numeric: tabular-nums; }
.field > .lab output small { font-size: 12px; margin-left: 4px; }
.slider { width: 100%; accent-color: var(--accent); }
.ticks { position: relative; height: 16px; margin: 0 8px; }
.ticks span { position: absolute; transform: translateX(-50%); font-size: 10px; color: var(--muted); white-space: nowrap; }
.ticks span::before { content: ''; display: block; width: 1px; height: 4px; background: var(--faint); margin: 0 auto 1px; }
.hint-line { color: var(--muted); font-size: 12px; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0; }
.stat { padding: 8px 10px; border-radius: 8px; background: var(--panel-2); }
.stat .k { font-size: 11px; color: var(--muted); }
.stat .v { font-weight: 650; font-variant-numeric: tabular-nums; }
.stat.bad .v { color: var(--danger); }
.mini-chart { margin-top: 6px; }
.mini-chart .k { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.mini-chart svg { width: 100%; height: 110px; overflow: visible; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.actions .btn { padding: 5px 10px; font-size: 13px; }
.frame-row { display: flex; gap: 6px; flex-wrap: wrap; }
.frame-row .seg { flex-wrap: wrap; }
.empty-note { color: var(--muted); font-size: 13px; padding: 4px 2px; }

/* ============================================================ dialogs */
dialog { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--ink); box-shadow: var(--shadow); padding: 0; }
dialog::backdrop { background: rgba(0, 0, 0, .3); backdrop-filter: blur(2px); }
.picker { width: min(640px, calc(100vw - 32px)); height: min(640px, calc(100vh - 64px)); }
.picker[open] { display: flex; flex-direction: column; }
.picker-head { display: flex; gap: 8px; align-items: center; padding: 12px; border-bottom: 1px solid var(--line-2); }
.picker-head input { flex: 1; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); }
.picker-head h2 { flex: 1; font-size: 15px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; padding: 10px 12px; border-bottom: 1px solid var(--line-2); }
.chips button { padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); background: none; font-size: 12px; color: var(--muted); }
.chips button[aria-selected="true"] { background: var(--ink); color: var(--panel); border-color: var(--ink); }
.picker-list { list-style: none; margin: 0; padding: 6px; overflow: auto; flex: 1; }
.picker-list li { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 8px; cursor: pointer; }
.picker-list li:hover, .picker-list li[aria-selected="true"] { background: var(--accent-soft); }
.picker-list .sw { width: 28px; height: 28px; border-radius: 6px; border: 1px solid rgba(0, 0, 0, .12); }
.picker-list .nm { font-weight: 550; }
.picker-list .sub { color: var(--muted); font-size: 12px; }
.picker-list .q { text-align: right; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.picker-list h3 { grid-column: 1 / -1; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 10px 4px 2px; }
.picker-list li.group { cursor: default; padding: 0; background: none; }

.presets { width: min(980px, calc(100vw - 32px)); max-height: calc(100vh - 64px); }
.preset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; padding: 14px; overflow: auto; }
.preset { text-align: left; padding: 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--panel-2); display: flex; flex-direction: column; gap: 6px; }
.preset:hover { border-color: var(--accent); }
.preset svg { width: 100%; height: 70px; border-radius: 6px; }
.preset b { font-size: 13px; }
.preset span { font-size: 12px; color: var(--muted); }
.preset .r { font-weight: 650; color: var(--ink); }

/* ============================================================ responsive */
@media (max-width: 1080px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; max-height: none; }
  .ribbon { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .topbar { position: static; padding: 8px 16px; gap: 8px; }
  .city input { width: 100%; max-width: none; }
  .city { flex: 1 1 100%; }
  .layout { padding: 12px 16px 32px; }
  .stage { padding: 12px; }
  .legend { display: none; }
  .months { gap: 1px; }
  .mo { font-size: 10px; padding: 3px 0 4px; }
  .tile .v { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ============================================================ indoor popover extras */
.pop-field { margin-bottom: 12px; }
.pop-lab { font-weight: 500; margin-bottom: 6px; }
.seg-wide { display: flex; }
.seg-wide button { flex: 1; }
.popover select { display: block; width: 100%; margin-top: 4px; padding: 5px 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); }

/* ============================================================ ribbon gauge */
.gauge { position: relative; height: 6px; border-radius: 3px; background: var(--line); margin-top: 7px; }
.gauge i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 3px; background: var(--ok); }
.gauge.short i { background: var(--danger); }
.gauge b { position: absolute; top: -3px; width: 2px; height: 12px; background: var(--ink); border-radius: 1px; }

/* ============================================================ month strip: stored moisture */
.mo .cond.drying { background: var(--warn); }

/* ============================================================ stored-moisture marker (svg) */
.store-dot { fill: var(--warn); stroke: var(--panel); stroke-width: 2; }
.store-line { stroke: var(--warn); stroke-width: 3; }
.store-label { fill: var(--warn); font-size: 11px; font-weight: 700; paint-order: stroke; stroke: var(--panel); stroke-width: 3px; }

/* ============================================================ guidance */
.guidance { padding: 16px; }
.g-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.g-head h2 { font-size: 15px; }
.g-controls { display: flex; align-items: center; gap: 10px; margin-left: auto; color: var(--muted); font-size: 13px; }
.g-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.card { position: relative; padding: 12px 14px 12px 42px; border-radius: var(--radius); background: var(--panel-2); border: 1px solid var(--line-2); }
.card::before {
  position: absolute; left: 12px; top: 12px; width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center; font-size: 12px; font-weight: 800; color: #fff;
}
.card.pass::before { content: '✓'; background: var(--ok); }
.card.caution::before { content: '!'; background: var(--warn); }
.card.fail::before { content: '✕'; background: var(--danger); }
.card.info::before { content: 'i'; background: var(--faint); font-style: italic; font-family: Georgia, serif; }
.card.fail { background: var(--danger-soft); border-color: transparent; }
.card.caution { background: var(--warn-soft); border-color: transparent; }
.card h3 { margin: 0 0 3px; font-size: 14px; font-weight: 650; }
.card p { margin: 0; font-size: 13px; color: var(--ink); opacity: .85; }
.card details { margin-top: 6px; font-size: 12px; color: var(--muted); }
.card summary { cursor: pointer; color: var(--accent); width: max-content; }
.card details p { margin-top: 6px; color: var(--muted); opacity: 1; font-size: 12px; }
.card cite { display: block; margin-top: 6px; font-style: normal; font-size: 11px; color: var(--muted); }
.g-foot { margin-top: 12px; }
.g-sum { display: flex; gap: 6px; }
.g-sum span { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.g-sum .f { background: var(--danger-soft); color: var(--danger); }
.g-sum .c { background: var(--warn-soft); color: var(--warn); }
.g-sum .p { background: var(--ok-soft); color: var(--ok); }
@media (max-width: 640px) { .g-cards { grid-template-columns: 1fr; } .guidance { padding: 12px; } }

/* ============================================================ plan view */
.plan-readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 8px; margin-top: 10px; }
.plan-readout .stat { background: var(--panel-2); }
.plan-readout .stat .s { font-size: 11px; color: var(--muted); }
.plan-readout .stat.bad { background: var(--danger-soft); }
.plan-readout .stat.warn { background: var(--warn-soft); }

/* ============================================================ simulation */
.sim { padding: 16px; }
.sim-controls { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 12px; }
.ctl { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.ctl .seg button { font-size: 12px; padding: 4px 9px; }
.sim-progress { height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; margin-bottom: 10px; }
.sim-progress i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .15s; }
.sim-out.stale { opacity: .45; }
.sim-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 8px; margin-bottom: 12px; }
.sim-tiles .tile .v { font-size: 20px; }
.sim-tiles .tile.warn { background: var(--warn-soft); border-color: transparent; }
.sim-tiles .tile.warn .v { color: var(--warn); }
.sim-chart { margin-top: 10px; }
.sim-chart h3 { font-size: 12px; font-weight: 600; color: var(--muted); margin: 0 0 4px; }
.sim-chart svg { width: 100%; overflow: visible; }
.sim-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 12px; color: var(--muted); margin-top: 4px; }
.sim-legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 5px; }
.stale-note { font-size: 12px; color: var(--warn); font-weight: 600; }

/* ============================================================ phase 7: name, dialogs, compare, toast */
.print-only { display: none; }
.wall-name-row { margin: -4px 0 10px; }
.wall-name { width: 100%; font-size: 18px; font-weight: 650; letter-spacing: -.01em; border: 1px solid transparent; background: none; border-radius: 8px; padding: 4px 8px; margin-left: -8px; }
.wall-name:hover { border-color: var(--line); }
.wall-name:focus { border-color: var(--accent); background: var(--panel); outline: none; }
.small-dlg { width: min(560px, calc(100vw - 32px)); }
.wide-dlg { width: min(1100px, calc(100vw - 32px)); max-height: calc(100vh - 48px); }
.dlg-body { padding: 14px; overflow: auto; }
.share-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.share-row input[type=text] { flex: 1; min-width: 180px; padding: 7px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); }
.share-row .spacer { flex: 1; }
.cmp-row { margin-top: 12px; justify-content: space-between; }
.saved-list { list-style: none; margin: 10px 0 0; padding: 0; border: 1px solid var(--line-2); border-radius: var(--radius); }
.saved-list li { display: grid; grid-template-columns: 22px 124px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 8px 10px; border-top: 1px solid var(--line-2); }
.saved-list li:first-child { border-top: 0; }
.saved-list li.empty-note { display: block; }
.sv-thumb svg { width: 120px; height: 34px; border-radius: 4px; }
.sv-main b { display: block; }
.sv-main span { font-size: 12px; color: var(--muted); }
.sv-act { display: flex; gap: 6px; }
.sv-act .btn { font-size: 12px; padding: 4px 8px; }
.cmp-wrap { overflow-x: auto; }
.cmp { border-collapse: separate; border-spacing: 0; width: 100%; min-width: 560px; }
.cmp th, .cmp td { padding: 10px; border-bottom: 1px solid var(--line-2); vertical-align: top; text-align: left; }
.cmp thead th { font-size: 13px; }
.cmp th[scope=row] { font-size: 12px; color: var(--muted); font-weight: 600; width: 120px; }
.cmp-thumb svg { width: 100%; max-width: 200px; height: 54px; border-radius: 6px; margin-bottom: 6px; }
.cmp td.best { background: var(--ok-soft); }
.cmp .gauge { max-width: 200px; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.bad { background: var(--danger-soft); color: var(--danger); }
.cmp-issues { margin: 6px 0 0; padding-left: 16px; font-size: 12px; }
.cmp-issues li.fail { color: var(--danger); }
.cmp-issues li.caution { color: var(--warn); }
#cmp-dlg .picker-head .btn { margin-left: auto; }
.fld { display: flex; flex-direction: column; gap: 4px; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 10px; flex: 1; }
.fld input, .fld select { font-size: 14px; font-weight: 400; color: var(--ink); padding: 7px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); }
.fld-row { display: flex; gap: 10px; flex-wrap: wrap; }
#mat-form .seg-wide { margin-bottom: 10px; }
.edit-mat { font-size: 11px; padding: 2px 8px; margin-left: 6px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 60; padding: 10px 16px; border-radius: 10px; background: var(--ink); color: var(--panel); box-shadow: var(--shadow); font-size: 13px; }
@media (max-width: 640px) { .saved-list li { grid-template-columns: 22px minmax(0, 1fr); } .sv-thumb { display: none; } .sv-act { grid-column: 2; } }
.chips .new-mat { margin-left: auto; border-style: dashed; color: var(--accent); border-color: var(--accent); }

/* ============================================================ accessibility */
.layer:focus { outline: none; }
.layer:focus-visible .outline { stroke: var(--focus); stroke-width: 3; stroke-dasharray: 4 2; }
.ins-btn:focus-visible circle { stroke: var(--ink); stroke-width: 2; }
.picker-list li[aria-selected="true"] { outline: 2px solid var(--accent); outline-offset: -2px; }
@media (forced-colors: active) {
  .seg button[aria-checked="true"], .mo[aria-checked="true"], .chips button[aria-selected="true"] { outline: 2px solid CanvasText; }
  .layer.sel .outline { stroke: Highlight; }
}
.zone-soil { fill: var(--soil); }
.w2-worst { stroke: var(--danger); stroke-width: 2.5; stroke-dasharray: 7 4; }
.w2-worst-t { fill: var(--danger); font-size: 12px; font-weight: 700; paint-order: stroke; stroke: var(--panel); stroke-width: 3px; }
.w2-insp { stroke: var(--accent); stroke-width: 2.5; }
.w2-insp-t { fill: var(--accent); font-size: 12px; font-weight: 700; paint-order: stroke; stroke: var(--panel); stroke-width: 3px; }
.w2-note { margin: 10px 2px 6px; font-weight: 600; }
.w2-note button { margin-left: 8px; font-size: 12px; padding: 3px 8px; }
#wall2d svg { cursor: crosshair; }
#wall2d:focus { outline: none; }
#wall2d:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
/* lines drawn over the heat maps (plan view, whole wall): the ramp is the same in both themes */
.hm-iso { fill: none; stroke: var(--hm-ink); stroke-opacity: .28; stroke-width: 1; }
.hm-bound { stroke: var(--hm-ink); stroke-opacity: .35; stroke-width: 1; }
.hm-membrane { fill: var(--hm-ink); fill-opacity: .4; }
.hm-stud { fill: none; stroke: var(--hm-ink); stroke-opacity: .6; stroke-width: 1.2; }
.hm-steel { fill: none; stroke: var(--hm-steel); stroke-width: 2.5; }
.hm-dp { fill: none; stroke: var(--hm-dp); stroke-width: 2.5; }
.hm-dp-t { fill: var(--dp-line); font-weight: 600; }
.hm-probe { fill: none; stroke: var(--hm-ink); stroke-width: 1.5; }
.exterior-ctl .popover { width: 320px; }


/* guided examples */
.examples { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin: 2px 0 10px; font-size: 13px; color: var(--muted); }
.examples > span { margin-right: 2px; }
.ex-btn { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 4px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel-2); color: var(--ink); font: inherit; cursor: pointer; }
.ex-btn svg { width: 46px; height: 18px; border-radius: 999px; }
.ex-btn:hover, .ex-btn[aria-pressed="true"] { border-color: var(--accent); }
.ex-btn[aria-pressed="true"] { box-shadow: inset 0 0 0 1px var(--accent); }
.ex-tip { position: relative; margin: 0 0 12px; padding: 12px 40px 12px 14px; border-radius: 12px; border: 1px solid var(--accent); background: var(--panel-2); font-size: 14px; line-height: 1.45; }
.ex-tip h3 { margin: 0 0 2px; font-size: 15px; }
.ex-tip p { margin: 0 0 8px; color: var(--muted); }
.ex-tip ol { margin: 4px 0 0; padding-left: 20px; }
.ex-tip li { margin: 3px 0; }
.ex-close { position: absolute; top: 6px; right: 6px; font-size: 18px; line-height: 1; }
.preset .tag { align-self: flex-start; font-style: normal; font-size: 11px; font-weight: 600; padding: 1px 7px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }