:root {
  --ink: #12212f;
  --ink-2: #24384b;
  --muted: #5c6f80;
  --line: #d9e2ea;
  --line-2: #c4d0da;
  --bg: #edf1f5;
  --card: #ffffff;
  --navy: #0d2438;
  --navy-2: #13344f;
  --accent: #c2410c;
  --accent-2: #0f766e;
  --amber: #d97706;
  --ok: #15803d;
  --bad: #b91c1c;
  --warn: #a16207;
  --blue: #1d4ed8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 33, 47, .05), 0 10px 24px -18px rgba(16, 33, 47, .35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(15, 118, 110, .07), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -0.01em; }
p { margin: 0 0 8px; }
a { color: var(--accent); }

/* ---------------- top bar ---------------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 12px 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.04), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.028) 0 1px, transparent 1px 44px),
    linear-gradient(120deg, var(--navy), var(--navy-2));
  color: #e8f0f7;
  border-bottom: 3px solid var(--accent);
  box-shadow: 0 6px 20px -12px rgba(0,0,0,.5);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { width: 40px; height: 40px; color: #f6b26b; flex: 0 0 auto; }
.brand-mark svg { width: 100%; height: 100%; }
.brand h1 { font-size: 18px; font-weight: 700; color: #fff; }
.brand p { margin: 2px 0 0; font-size: 11.5px; color: #9fb6ca; letter-spacing: .02em; }
.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.std-badge {
  font-family: var(--mono); font-size: 10.5px; font-weight: 700;
  color: #0b2a1c; background: #86efac; border-radius: 999px;
  padding: 5px 10px; letter-spacing: .04em; white-space: nowrap;
}

/* ---------------- shell ---------------- */
.app {
  display: grid;
  grid-template-columns: 368px minmax(0, 1fr);
  gap: 18px;
  max-width: 1560px;
  margin: 18px auto 40px;
  padding: 0 18px;
  align-items: start;
}
.sidebar {
  position: sticky; top: 78px;
  max-height: calc(100vh - 96px);
  overflow: auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  scrollbar-width: thin;
}
.sidebar::-webkit-scrollbar { width: 8px; }
.sidebar::-webkit-scrollbar-thumb { background: #c7d3dd; border-radius: 99px; }
.side-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px 6px; }
.side-head h2 { font-size: 15px; text-transform: uppercase; letter-spacing: .08em; }
.auto-note { font-size: 10.5px; color: var(--muted); display: flex; align-items: center; gap: 5px; }
.dot { width: 6px; height: 6px; border-radius: 99px; background: var(--ok); display: inline-block; box-shadow: 0 0 0 3px rgba(21,128,61,.12); }

form { padding: 0 16px 16px; }
fieldset {
  border: 0; border-top: 1px solid var(--line);
  margin: 12px 0 0; padding: 12px 0 2px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 9px 10px;
}
fieldset legend {
  grid-column: 1 / -1;
  padding: 0 0 2px; margin: 0 0 2px;
  font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  color: var(--accent);
}
fieldset legend + * { margin-top: 0; }
label { display: block; font-size: 11.5px; color: var(--muted); font-weight: 600; }
label input, label select { margin-top: 4px; }
label .unit { margin-left: 2px; }
label.full { grid-column: 1 / -1; }
label .unit { font-weight: 500; color: #8a9aa9; font-size: 10.5px; }
input, select {
  width: 100%; height: 34px;
  border: 1px solid var(--line-2); border-radius: 7px;
  padding: 0 9px; background: #fff; color: var(--ink);
  font-family: var(--mono); font-size: 12.5px;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(15,118,110,.12); }
input[type="number"] { font-variant-numeric: tabular-nums; }
select { font-family: var(--sans); font-size: 12px; }
input:invalid { border-color: #f0a3a3; }
.sub-head { grid-column: 1 / -1; font-size: 10.5px; font-weight: 700; color: var(--ink-2); text-transform: uppercase; letter-spacing: .06em; padding-top: 4px; border-top: 1px dashed var(--line); }
.sub-head:first-of-type { border-top: 0; padding-top: 0; }
.mini-note { font-size: 10.5px; color: var(--muted); line-height: 1.4; }
.full { grid-column: 1 / -1; }
.side-actions { display: flex; gap: 8px; margin-top: 14px; }
.side-actions .primary { flex: 1; }
.side-status { margin-top: 8px; font-size: 10.5px; color: var(--muted); font-family: var(--mono); }
.side-status.err { color: var(--bad); }

.seg { display: flex; border: 1px solid var(--line-2); border-radius: 8px; overflow: hidden; }
.seg button {
  flex: 1; border: 0; background: #f7fafc; padding: 7px 8px;
  font-size: 11.5px; font-weight: 600; color: var(--muted); cursor: pointer;
}
.seg button.active { background: var(--ink); color: #fff; }

.advanced { margin-top: 12px; border-top: 1px solid var(--line); }
.advanced summary {
  cursor: pointer; padding: 12px 0 4px; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em; color: var(--accent);
}
.advanced fieldset { margin-top: 4px; }
.advanced[open] summary { color: var(--ink-2); }

/* ---------------- buttons ---------------- */
.btn {
  border: 1px solid var(--line-2); background: #fff; color: var(--ink);
  height: 34px; padding: 0 13px; border-radius: 7px;
  font-size: 12px; font-weight: 650; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: background .15s, border-color .15s, transform .05s;
  white-space: nowrap;
}
.btn:hover { border-color: #9fb1c1; background: #f8fafc; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #a8360a; }
.btn.ghost { background: transparent; color: #dbe7f1; border-color: rgba(255,255,255,.22); }
.btn.ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.4); }
.sidebar .btn.ghost, .card .btn.ghost { color: var(--ink); border-color: var(--line-2); }
.sidebar .btn.ghost:hover, .card .btn.ghost:hover { background: #f8fafc; }
.btn.small { height: 30px; padding: 0 10px; font-size: 11px; }
.btn[disabled] { opacity: .45; pointer-events: none; }

/* ---------------- workspace ---------------- */
.workspace { min-width: 0; display: flex; flex-direction: column; gap: 14px; }

.verdict {
  background: #fff; border: 1px solid var(--line); border-left: 5px solid var(--muted);
  border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.verdict.pass { border-left-color: var(--ok); }
.verdict.fail { border-left-color: var(--bad); }
.verdict.warn { border-left-color: var(--amber); }
.verdict-main { display: flex; align-items: center; gap: 14px; min-width: 0; }
.verdict h2 { font-size: 16px; }
.verdict p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.pill {
  font-family: var(--mono); font-size: 11px; font-weight: 800; letter-spacing: .08em;
  padding: 7px 11px; border-radius: 999px; background: #eef2f6; color: var(--ink-2);
  border: 1px solid var(--line); white-space: nowrap;
}
.verdict.pass .pill { background: #e8f7ee; color: var(--ok); border-color: #b9e6c9; }
.verdict.fail .pill { background: #fdecec; color: var(--bad); border-color: #f3c0c0; }
.verdict.warn .pill { background: #fff6e6; color: var(--warn); border-color: #f3d7a2; }
.verdict-stats { display: flex; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.vstat { text-align: right; }
.vstat b { display: block; font-family: var(--mono); font-size: 15px; color: var(--ink); }
.vstat span { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tab {
  border: 0; background: transparent; padding: 10px 14px 9px;
  font-size: 12.5px; font-weight: 650; color: var(--muted); cursor: pointer;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--ink); border-bottom-color: var(--accent); }

.pane { display: none; flex-direction: column; gap: 14px; }
.pane.active { display: flex; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 15px 16px; min-width: 0;
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.card h3 { font-size: 13px; font-weight: 750; letter-spacing: .01em; }
.tag {
  font-family: var(--mono); font-size: 9.5px; font-weight: 650; color: var(--muted);
  background: #f2f5f8; border: 1px solid var(--line); padding: 3px 6px; border-radius: 4px;
  white-space: nowrap;
}
.muted { color: var(--muted); }
.small { font-size: 11px; }

/* ---------------- summary ---------------- */
.summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.sitem { padding: 7px 9px; border: 1px solid var(--line); border-radius: 7px; background: #fbfcfd; }
.sitem span { display: block; font-size: 9.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.sitem b { font-family: var(--mono); font-size: 13px; font-weight: 650; color: var(--ink); }
.sitem.good b { color: var(--ok); }
.sitem.bad b { color: var(--bad); }

.bar-line { display: flex; align-items: center; gap: 10px; margin: 10px 0 2px; }
.bar-line .bar { flex: 1; height: 7px; border-radius: 99px; background: #e8eef3; overflow: hidden; }
.bar-line .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-2), #34a89b); border-radius: 99px; }
.bar-line.hot .bar i { background: linear-gradient(90deg, var(--amber), var(--bad)); }
.bar-line b { font-family: var(--mono); font-size: 11px; min-width: 38px; text-align: right; }

.opt-table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 11px; }
.opt-table th { text-align: left; font-size: 9px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); border-bottom: 1px solid var(--line); padding: 5px 4px; }
.opt-table td { padding: 5px 4px; border-bottom: 1px solid #eef2f5; font-family: var(--mono); }
.opt-table tr.best td { background: #f0fdf9; font-weight: 700; }
.opt-table td:first-child { font-family: var(--sans); }

/* ---------------- tables ---------------- */
table.data { width: 100%; border-collapse: collapse; font-size: 11.5px; }
table.data th {
  text-align: left; font-size: 9px; text-transform: uppercase; letter-spacing: .07em;
  color: var(--muted); font-weight: 700; padding: 6px 6px; border-bottom: 1px solid var(--line-2);
  background: #fafcfd; position: sticky; top: 0;
}
table.data td { padding: 6px 6px; border-bottom: 1px solid #edf1f5; font-family: var(--mono); vertical-align: top; }
table.data td.txt { font-family: var(--sans); }
table.data tr:hover td { background: #f9fbfc; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.good { color: var(--ok); }
.bad { color: var(--bad); }
.warnc { color: var(--warn); }

/* checks */
.check { display: grid; grid-template-columns: 22px minmax(150px, 1.4fr) minmax(80px, .8fr) minmax(80px, .8fr) 82px; gap: 8px; align-items: center; padding: 7px 2px; border-bottom: 1px solid #edf1f5; font-size: 11.5px; }
.check:last-child { border-bottom: 0; }
.check .ic { width: 18px; height: 18px; border-radius: 99px; display: grid; place-items: center; font-size: 10px; font-weight: 800; }
.check .ic.ok { background: #e8f7ee; color: var(--ok); }
.check .ic.no { background: #fdecec; color: var(--bad); }
.check .nm { font-weight: 600; color: var(--ink-2); }
.check .vl, .check .lm { font-family: var(--mono); font-size: 10.5px; color: var(--ink); }
.check .lm { color: var(--muted); }
.check .cl { font-family: var(--mono); font-size: 9px; color: var(--muted); text-align: right; }
.check-note { grid-column: 2 / -1; font-size: 10px; color: var(--muted); margin-top: -3px; padding-bottom: 3px; }

/* warnings */
.wlist { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 7px; }
.wlist li { position: relative; padding: 7px 9px 7px 27px; background: #fffbf2; border: 1px solid #f1e2c0; border-radius: 7px; font-size: 11px; color: #6b4e12; }
.wlist li::before { content: "!"; position: absolute; left: 9px; top: 6px; width: 13px; height: 13px; border-radius: 99px; background: var(--amber); color: #fff; font-size: 9px; font-weight: 800; display: grid; place-items: center; }
.wlist li.info { background: #f2f7fb; border-color: #d5e4f0; color: #2b4a63; }
.wlist li.info::before { content: "i"; background: #3b82c4; }

/* ties */
.tie-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tiebox { border: 1px solid var(--line); border-radius: 7px; padding: 8px 9px; background: #fbfcfd; }
.tiebox span { display: block; font-size: 9px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.tiebox b { font-family: var(--mono); font-size: 12px; }
.formula { font-family: var(--mono); font-size: 10.5px; color: var(--ink-2); background: #f6f9fb; border: 1px dashed var(--line-2); border-radius: 6px; padding: 8px; margin-top: 9px; overflow-x: auto; }

/* ---------------- SVG ---------------- */
.svg-wrap { width: 100%; }
.svg-wrap svg { width: 100%; height: auto; display: block; }
.section-svg .conc { fill: #f7fafc; stroke: #34495e; stroke-width: 1.4; }
.section-svg .tie { fill: none; stroke: #0f766e; stroke-width: 1.4; }
.section-svg .bar { fill: #c2410c; stroke: #7c2d12; stroke-width: .6; }
.section-svg .dim { stroke: #64748b; stroke-width: .8; fill: none; }
.section-svg .dimtxt { font: 10px var(--mono); fill: #475569; }
.section-svg .lbl { font: 9.5px var(--sans); fill: #5c6f80; }
.section-svg .lead { stroke: #94a3b8; stroke-width: .6; }
.section-svg .mark { font: 10px var(--mono); fill: #c2410c; font-weight: 700; }

.chart-svg text { font-family: var(--mono); font-size: 9px; fill: #64748b; }
.chart-svg .axis { stroke: #94a3b8; stroke-width: 1; }
.chart-svg .grid { stroke: #e5ebf0; stroke-width: .7; }
.chart-svg .curve { fill: none; stroke: #0f766e; stroke-width: 2; }
.chart-svg .pt { fill: #c2410c; stroke: #fff; stroke-width: 1.5; }
.chart-svg .cap { fill: none; stroke: #c2410c; stroke-width: 1.2; stroke-dasharray: 3 3; }
.chart-svg .lbl { font-family: var(--sans); font-size: 10px; fill: #334155; font-weight: 600; }
.chart-svg .ok { fill: #15803d; }
.chart-svg .no { fill: #b91c1c; }

/* ---------------- viewer ---------------- */
.viewer-card { padding: 0; overflow: hidden; }
.viewer-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.layer-toggles, .viewer-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line-2); background: #fff; color: var(--muted);
  border-radius: 999px; height: 27px; padding: 0 10px; font-size: 10.5px; font-weight: 650; cursor: pointer;
}
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }
.viewer-wrap {
  position: relative; height: 520px;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(58, 108, 160, .22), transparent 70%),
    linear-gradient(180deg, #0c1a28, #0a1420 60%, #0b1622);
}
.viewer-wrap canvas { display: block; width: 100%; height: 100%; }
.viewer-hint { position: absolute; left: 12px; bottom: 10px; font-size: 10px; color: #8fa8bd; font-family: var(--mono); pointer-events: none; }
.viewer-loading { position: absolute; inset: 0; display: none; place-items: center; color: #cfe0ee; font-family: var(--mono); font-size: 11px; background: rgba(8,16,26,.55); }
.viewer-loading.show { display: grid; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; padding: 9px 12px; border-top: 1px solid var(--line); font-size: 10.5px; color: var(--muted); }
.legend span { display: flex; align-items: center; gap: 6px; }
.sw { width: 14px; height: 5px; border-radius: 2px; display: inline-block; }
.sw.bar { background: #e07a3f; }
.sw.tie { background: #35b7a4; }
.sw.cross { background: #6ea8ff; }
.sw.conc { background: #8fb3d9; opacity: .45; }

/* ---------------- drawing ---------------- */
.drawing-preview { background: #fdfdfb; border: 1px solid var(--line); border-radius: 6px; padding: 8px; overflow: auto; }
.drawing-preview svg { display: block; width: 100%; height: auto; background: #fdfdfb; }
.drawing-preview .paper { fill: #fdfdfb; }
.drawing-preview .frame { fill: none; stroke: #263b4d; stroke-width: .8; }
.drawing-preview .thin { fill: none; stroke: #7c8c9b; stroke-width: .5; }
.drawing-preview .conc { fill: #eef4f8; stroke: #263b4d; stroke-width: .9; }
.drawing-preview .rebar { stroke: #b23a0d; stroke-width: 1; fill: none; }
.drawing-preview .rebar-fill { fill: #b23a0d; }
.drawing-preview .tie { stroke: #0f766e; stroke-width: .7; fill: none; }
.drawing-preview .dim { stroke: #4b6479; stroke-width: .45; fill: none; }
.drawing-preview text { font-family: var(--mono); fill: #263b4d; }
.drawing-preview .ttl { font-family: var(--sans); font-weight: 700; }
.drawing-preview .small { font-size: 3.2px; }
.drawing-preview .tiny { font-size: 2.7px; }
.drawing-preview .note { font-family: var(--sans); font-size: 2.8px; }

.export-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }

/* ---------------- calculation ---------------- */
.calc-card { padding: 0; }
.calc { padding: 18px 22px 26px; font-size: 12.5px; color: var(--ink-2); max-width: 100%; }
.calc h2 { font-size: 15px; margin: 22px 0 8px; padding-bottom: 5px; border-bottom: 1px solid var(--line); color: var(--ink); }
.calc h2:first-child { margin-top: 0; }
.calc h3 { font-size: 12px; margin: 14px 0 6px; color: var(--ink); text-transform: uppercase; letter-spacing: .06em; }
.calc p { margin: 6px 0; }
.calc .eq { font-family: var(--mono); background: #f6f9fb; border-left: 3px solid var(--accent-2); padding: 8px 10px; margin: 7px 0; font-size: 11.5px; overflow-x: auto; }
.calc .ref { color: var(--muted); font-size: 10.5px; font-family: var(--mono); }
.calc table { width: 100%; border-collapse: collapse; margin: 8px 0 12px; font-size: 11.5px; }
.calc th { text-align: left; background: #f6f9fb; padding: 6px; border-bottom: 1px solid var(--line); font-size: 9.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.calc td { padding: 5px 6px; border-bottom: 1px solid #edf1f5; font-family: var(--mono); }
.calc td.t { font-family: var(--sans); }
.calc .callout { background: #fffbf2; border: 1px solid #f1e2c0; border-radius: 7px; padding: 10px 12px; margin: 10px 0; font-size: 11.5px; }
.calc .verdict-line { font-weight: 700; color: var(--ok); }
.calc .verdict-line.no { color: var(--bad); }

/* ---------------- cost ---------------- */
.cost-hero { display: flex; align-items: baseline; gap: 10px; margin: 4px 0 10px; }
.cost-hero b { font-family: var(--mono); font-size: 28px; letter-spacing: -0.03em; }
.cost-hero span { color: var(--muted); font-size: 11px; }
.cost-rows { display: flex; flex-direction: column; gap: 6px; }
.cost-row { display: grid; grid-template-columns: 1fr 90px 50px; gap: 8px; align-items: center; font-size: 11.5px; }
.cost-row .track { height: 7px; border-radius: 99px; background: #eef2f5; overflow: hidden; grid-column: 2; }
.cost-row .track i { display: block; height: 100%; border-radius: 99px; }
.cost-row .amt { font-family: var(--mono); text-align: right; }
.rec-banner { display: flex; gap: 10px; align-items: flex-start; background: #effcf7; border: 1px solid #bfe8d8; border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; }
.rec-banner .big { font-family: var(--mono); font-size: 20px; font-weight: 700; color: #0f5f4f; line-height: 1; }
.rec-banner p { margin: 3px 0 0; font-size: 11px; color: #316052; }
.save-chip { background: #15803d; color: #fff; border-radius: 999px; padding: 3px 8px; font-size: 10px; font-weight: 700; font-family: var(--mono); }

/* ---------------- footer ---------------- */
.disclaimer { font-size: 10.5px; color: var(--muted); border-top: 1px solid var(--line); padding: 12px 2px 0; line-height: 1.6; }
.disclaimer strong { color: var(--ink-2); }

/* ---------------- toast ---------------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 8px;
  font-size: 12px; opacity: 0; pointer-events: none; transition: all .25s; z-index: 100;
  box-shadow: 0 12px 30px -12px rgba(0,0,0,.5);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------------- responsive ---------------- */
@media (max-width: 1100px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: relative; top: 0; max-height: none; }
  .grid-2 { grid-template-columns: 1fr; }
  .viewer-wrap { height: 420px; }
}
@media (max-width: 640px) {
  .topbar { padding: 10px 12px; }
  .brand h1 { font-size: 15px; }
  .brand p { display: none; }
  .top-actions .std-badge { display: none; }
  .app { padding: 0 10px; margin-top: 10px; }
  .verdict { flex-direction: column; align-items: flex-start; }
  .verdict-stats { justify-content: flex-start; gap: 14px; }
  .check { grid-template-columns: 20px 1fr 72px; }
  .check .lm, .check .cl { display: none; }
  .summary-grid { grid-template-columns: 1fr; }
  .calc { padding: 14px; }
  .viewer-wrap { height: 340px; }
}

/* ---------------- print ---------------- */
@media print {
  body { background: #fff; font-size: 10.5pt; }
  .topbar, .sidebar, .tabs, .viewer-toolbar, .export-row, .toast, .disclaimer { display: none !important; }
  .app { display: block; margin: 0; padding: 0; max-width: none; }
  .workspace { gap: 8px; }
  .pane { display: block !important; }
  .card { box-shadow: none; border: 1px solid #bbb; break-inside: avoid; margin-bottom: 8px; }
  .grid-2 { display: block; }
  .verdict { break-inside: avoid; }
  .calc { padding: 0; }
  a[href]::after { content: ""; }
}