/* Zigma Pro — Diseño acústico de salas: asistente en pasos + panel de explicaciones (acento verde azulado) */
:root { --teal-grad: linear-gradient(90deg, #5eead4 0%, #34d399 45%, #22d3ee 100%); --teal: #34d399;
  --s1: #e06a22; --s2: #0e9cb5; --grid: #252836; --band: rgba(52,211,153,.16); --good: #2fd27a; --bad: #ff6b6b; --warn: #ffb547; }
.teal { background: var(--teal-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tool-hero { padding: 60px 0 26px; }
.tool-hero::before { background: radial-gradient(closest-side, rgba(52,211,153,.15), transparent 70%); }
.tool-hero h1 { font-size: clamp(34px, 4.6vw, 56px); }

/* ---------- distribución: asistente + panel lateral */
.acu-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 26px; align-items: start; padding-bottom: 50px; }
@media (max-width: 1100px) { .acu-layout { grid-template-columns: 1fr; } .explain { display: none; } }
.acu-main { min-width: 0; }

/* ---------- resumen fijo */
.summary { position: sticky; top: 68px; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 10px 18px; flex-wrap: wrap;
  padding: 10px 14px; margin-bottom: 16px; border-radius: 16px; background: rgba(17,19,26,.92); backdrop-filter: blur(10px);
  border: 1px solid var(--border); }
.dots { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.dots button { display: flex; align-items: center; gap: 7px; padding: 6px 10px 6px 6px; border-radius: 999px; border: 1px solid transparent;
  background: none; color: var(--muted); font: 600 13px var(--head); cursor: pointer; }
.dots button b { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--surface-2);
  border: 1px solid var(--border-strong); color: var(--text-2); font: 800 12px var(--head); }
.dots button:hover { color: #fff; }
.dots button.done b { background: rgba(52,211,153,.16); border-color: rgba(52,211,153,.5); color: var(--teal); }
.dots button.on { color: #fff; border-color: var(--border-strong); background: var(--surface-2); }
.dots button.on b { background: var(--teal-grad); border-color: transparent; color: #062018; }
@media (max-width: 760px) { .dots button span { display: none; } .dots button.on span { display: inline; } .dots button { padding-right: 6px; }
  .dots button.on { padding-right: 10px; } }
.sum-t { display: flex; gap: 14px; margin: 0 0 0 auto; }
@media (max-width: 520px) {
  .summary { padding: 8px 10px; gap: 6px 10px; border-radius: 14px; }
  .dots { gap: 2px; }
  .dots button, .dots button.on { padding: 3px; }
  .dots button span, .dots button.on span { display: none; }
  .dots button b { width: 26px; height: 26px; }
  .sum-t { gap: 10px; }
  .sum-t dt { font-size: 9.5px; }
  .sum-t dd { font-size: 14px; }
}
.sum-t div { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.15; }
.sum-t dt { font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; }
.sum-t dd { margin: 0; font: 800 16px var(--head); color: #fff; font-variant-numeric: tabular-nums; }
.sum-t .t dd { color: var(--teal); }
.sum-t .n dd { color: #f08a4a; }
.sum-t .p dd { color: #3ec1d8; }

/* ---------- pasos */
.step { padding: 26px; border-radius: 20px; background: var(--surface); border: 1px solid var(--border); animation: stepIn .35s ease; }
@keyframes stepIn { from { transform: translateY(8px); } to { transform: none; } }
@media (prefers-reduced-motion: reduce) { .step { animation: none; } }
@media (max-width: 600px) { .step { padding: 18px 16px; border-radius: 16px; } }
.step h2 { font-size: clamp(22px, 2.4vw, 27px); letter-spacing: -.5px; margin: 0 0 6px; }
.step h3 { display: flex; align-items: center; gap: 8px; font-size: 18px; letter-spacing: -.2px; margin: 28px 0 6px; }
.step .sub { color: var(--text-2); font-size: 15px; margin: 0 0 18px; max-width: 720px; }
.step label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--text-2); min-width: 0; }
.step label.inline { flex-direction: row; align-items: center; gap: 10px; margin: 10px 0 8px; }
.step label.inline select { width: auto; }
.step input, .step select { width: 100%; min-width: 0; padding: 10px 12px; border-radius: 11px; border: 1px solid var(--border-strong); background: #0c0e14;
  color: #fff; font: 500 15px var(--body); }
.step input:focus, .step select:focus { outline: 2px solid rgba(52,211,153,.55); outline-offset: 1px; border-color: transparent; }
.row3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px 14px; margin-bottom: 14px; }
.row3 .span3 { grid-column: 1 / -1; }
@media (max-width: 560px) { .row3 { grid-template-columns: 1fr 1fr; } }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 22px; align-items: start; }
@media (max-width: 860px) { .grid2 { grid-template-columns: 1fr; } }
.hint { color: var(--muted); font-size: 13.5px; margin: 6px 0 10px; }
.err { color: var(--bad); font-size: 13.5px; margin: 6px 0 0; }
.err:empty { display: none; }
.cap { font: 600 13.5px var(--head); color: #fff; margin: 0 0 8px; }
.fine { color: var(--muted); font-size: 12.5px; margin: 20px 0 0; }
.fine-l { color: var(--muted); font-size: 12.5px; margin: 12px 0 0; }
.q { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--border-strong); background: none;
  color: var(--text-2); font: 700 12px var(--head); cursor: pointer; vertical-align: middle; flex: none; }
.q:hover { color: #062018; background: var(--teal); border-color: var(--teal); }
.linkish { border: none; background: none; padding: 0; color: var(--teal); font: 600 14px var(--body); cursor: pointer; text-decoration: underline;
  text-underline-offset: 3px; }
details.adv { margin: 16px 0 0; padding: 0; }
details.adv > summary, details.module > summary { cursor: pointer; color: var(--text-2); font-size: 14px; padding: 8px 0; }
details.adv > summary:hover, details.module > summary:hover { color: #fff; }
details.adv[open] > summary { margin-bottom: 10px; }

/* paso 1: usos y objetivo */
.uses { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 20px; }
@media (max-width: 760px) { .uses { grid-template-columns: 1fr 1fr; } }
.use { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 14px; border-radius: 14px; text-align: left; cursor: pointer;
  background: #0c0e14; border: 1px solid var(--border); color: var(--text-2); font: 13px/1.4 var(--body); transition: border-color .15s, background .15s; }
.use svg { width: 26px; height: 26px; color: var(--muted); margin-bottom: 4px; }
.use b { font: 700 15px var(--head); color: #fff; }
.use:hover { border-color: var(--border-strong); }
.use.on { background: linear-gradient(#0f1a17, #0f1a17) padding-box, var(--teal-grad) border-box; border-color: transparent; }
.use.on svg { color: var(--teal); }
.target { padding: 18px 20px; border-radius: 16px; background: #0c0e14; border: 1px solid var(--border); margin-bottom: 16px; }
.target-head { display: flex; gap: 14px 28px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.target .lbl { font: 700 12px var(--head); letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-2); }
.target .big { display: flex; align-items: baseline; gap: 8px; font: 800 48px/1 var(--head); color: #fff; font-variant-numeric: tabular-nums; margin: 6px 0 4px; }
.target .big small { font: 600 20px var(--head); color: var(--text-2); }
.target .big .q { align-self: center; }
.target .zone { display: inline-block; padding: 2px 10px; border-radius: 999px; background: rgba(52,211,153,.14); color: var(--teal); font: 700 12px var(--head); }
.t-plain { flex: 1 1 260px; color: var(--text-2); font-size: 14px; margin: 0; }
.target input[type=range] { padding: 0; border: none; background: none; accent-color: var(--teal); height: 28px; }
.t-scale { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted); margin-top: -2px; }
.toggle { flex-direction: row !important; align-items: center; gap: 10px !important; font-size: 14.5px !important; color: var(--text-body) !important; cursor: pointer; }
.toggle input { width: 18px !important; height: 18px; accent-color: var(--teal); }

/* paso 2: planta */
.plan svg, .chart svg { display: block; width: 100%; height: auto; }
.plan { border-radius: 14px; background: #0b0d12; border: 1px solid var(--border); padding: 8px; margin-bottom: 10px; }
.walls { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.walls th { text-align: left; font: 600 11.5px var(--body); color: var(--muted); text-transform: uppercase; letter-spacing: .5px; padding: 4px 6px; }
.walls td { padding: 4px 6px; }
.walls td:first-child { color: var(--text-2); white-space: nowrap; }
.walls .calc { color: var(--muted); font-variant-numeric: tabular-nums; padding-left: 10px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); gap: 8px; margin: 0; }
.tiles div { padding: 10px 12px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); min-width: 0; }
.tiles dt { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.tiles dd { margin: 2px 0 0; color: #fff; font: 700 17px var(--head); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.tiles dd small { font: 400 12px var(--body); color: var(--muted); }

/* paso 3: contadores y detalle */
.counters { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0 6px; }
.counter, .counter-in { display: flex; align-items: center; gap: 10px; padding: 8px 10px 8px 14px; border-radius: 999px; background: #0c0e14; border: 1px solid var(--border);
  font-size: 14px; color: var(--text-body); }
.step .counter-in { flex-direction: row; font-size: 14px; color: var(--text-body); }
.counter span, .counter-in span { margin-right: 4px; }
.counter button { width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border-strong); background: none; color: #fff; font: 600 17px/1 var(--body);
  cursor: pointer; }
.counter button:hover { border-color: var(--teal); color: var(--teal); }
.counter b { min-width: 16px; text-align: center; font: 800 15px var(--head); color: #fff; }
.counter-in input { width: 74px !important; padding: 6px 10px !important; border-radius: 999px !important; }
.openings, .treatments, .per-wall, .ins-walls { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.item { display: grid; gap: 8px; align-items: end; padding: 10px; border-radius: 12px; background: #0c0e14; border: 1px solid var(--border); }
.item.op { grid-template-columns: .8fr .9fr .7fr 1.4fr auto; }
.item.tr { grid-template-columns: 2fr .7fr .8fr .9fr auto; }
.item.pw { grid-template-columns: auto 1fr; align-items: center; }
.item.iw { grid-template-columns: 1.6fr 1.6fr .7fr; align-items: center; }
@media (max-width: 640px) { .item.op, .item.tr, .item.iw { grid-template-columns: 1fr 1fr; } }
.item label { font-size: 11.5px; }
.item input, .item select { padding: 8px 10px; font-size: 14px; }
.item .x { border: none; background: none; color: var(--muted); font-size: 20px; line-height: 1; cursor: pointer; padding: 6px 8px; }
.item .x:hover { color: #fff; }
.item .chk { display: flex; flex-direction: row; align-items: center; gap: 8px; color: #fff; font-size: 13.5px; }
.item .chk input { width: auto; }

/* paso 4: diagnóstico */
.verdict-big { font: 600 clamp(17px, 1.8vw, 20px)/1.45 var(--head); color: #fff; margin: 4px 0 18px; max-width: 760px; }
.chart { position: relative; margin: 8px 0 6px; }
.chart .legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 0 0 6px; font-size: 12.5px; color: var(--text-2); }
.chart .legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }
.chart .legend i.band { height: 10px; background: rgba(52,211,153,.22); }
.chart .cap { margin-bottom: 4px; }
.verdict { display: flex; gap: 8px; align-items: flex-start; font-size: 15px; color: var(--text-body); margin: 4px 0 16px; }
.verdict b.ok { color: var(--good); } .verdict b.no { color: var(--bad); }
.dtable { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
.dtable th, .dtable td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: right; white-space: nowrap; }
.dtable th:first-child, .dtable td:first-child { text-align: left; color: var(--text-2); }
.dtable thead th { font: 600 11.5px var(--body); color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
#rtTable, #insTable { overflow-x: auto; }
.lowmap, .m3d { display: block; width: 100%; border-radius: 14px; background: #0b0d12; border: 1px solid var(--border); }
.lowmap { height: 240px; }
.m3d { height: 280px; cursor: grab; touch-action: none; }
.m3d:active { cursor: grabbing; }
.seq-key { display: flex; align-items: center; gap: 8px; margin-top: 8px; font-size: 12px; color: var(--muted); }
.seq-key i { flex: 0 1 140px; height: 8px; border-radius: 4px; background: linear-gradient(90deg, rgba(224,106,34,.08), rgba(224,106,34,.93)); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 2px; }
.chip { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border-strong); background: none; color: var(--text-2); font: 600 12.5px var(--body);
  cursor: pointer; font-variant-numeric: tabular-nums; }
.chip:hover { color: #fff; }
.chip.on { background: var(--teal); border-color: var(--teal); color: #062018; }

/* escuchar */
.listen { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin: 10px 0 4px; }
.listen:empty { display: none; }
.listen .lbl { font: 700 13px var(--head); color: #fff; margin-right: 2px; }
.listen .hint { flex-basis: 100%; margin: 0; font-size: 12.5px; }
.btn-tiny { padding: 7px 14px; font-size: 13px; border-radius: 999px; border: 1px solid var(--border-strong); background: transparent; color: #fff; cursor: pointer;
  font-family: var(--body); white-space: nowrap; }
.btn-tiny:hover { border-color: var(--teal); color: var(--teal); }

/* paso 5: el motor experto */
.ai-box { display: flex; align-items: center; justify-content: space-between; gap: 16px 26px; flex-wrap: wrap; padding: 22px 24px; margin: 10px 0 10px;
  border-radius: 18px; background: linear-gradient(135deg, #0f1c19, #0d151c) padding-box, var(--teal-grad) border-box; border: 1px solid transparent;
  box-shadow: 0 16px 50px rgba(52,211,153,.10); }
.ai-box > div { flex: 1 1 340px; }
.ai-box p { margin: 8px 0 0; color: var(--text-body); font-size: 15.5px; }
.ai-tag { display: inline-flex; align-items: center; gap: 8px; font: 800 12px var(--head); letter-spacing: 1.4px; text-transform: uppercase; color: var(--teal); }
.ai-tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(52,211,153,.18); }
.ai-box .btn { font-size: 16px; padding: 14px 28px; }
.plan5 { margin: 18px 0 6px; }
.plan5 .verdict-big { margin-bottom: 4px; }
.plan-items { list-style: none; counter-reset: pi; margin: 14px 0 8px; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.plan-items li { counter-increment: pi; position: relative; padding: 14px 16px 14px 52px; border-radius: 14px; background: #0c0e14; border: 1px solid var(--border); }
.plan-items li::before { content: counter(pi); position: absolute; left: 14px; top: 14px; display: grid; place-items: center; width: 26px; height: 26px;
  border-radius: 50%; background: var(--teal-grad); color: #062018; font: 800 13px var(--head); }
.pi-head { display: flex; justify-content: space-between; gap: 4px 14px; flex-wrap: wrap; }
.pi-head b { color: #fff; font: 700 15px var(--head); }
.pi-qty { color: var(--teal); font: 700 14px var(--head); font-variant-numeric: tabular-nums; }
.pi-where { color: var(--text-body); font-size: 14px; margin-top: 4px; }
.pi-why { color: var(--muted); font-size: 13px; margin-top: 2px; }
.warn { padding: 10px 14px; border-radius: 12px; background: rgba(255,181,71,.08); border: 1px solid rgba(255,181,71,.3); color: #ffd79a; font-size: 14px; margin: 8px 0; }
.ctx-cta { display: flex; align-items: center; justify-content: space-between; gap: 12px 20px; flex-wrap: wrap; margin-top: 22px; padding: 14px 16px;
  border-radius: 14px; background: rgba(52,211,153,.06); border: 1px dashed rgba(52,211,153,.35); color: var(--text-body); font-size: 14.5px; }
.ctx-cta span { flex: 1 1 300px; }

/* informe */
.report-cta { display: flex; align-items: center; justify-content: space-between; gap: 18px 32px; flex-wrap: wrap; margin: 22px 0 14px; padding: 24px;
  border-radius: 18px; background: linear-gradient(var(--surface-2), var(--surface-2)) padding-box, var(--grad) border-box; border: 1px solid transparent; }
.report-cta > div:first-child { flex: 1 1 380px; }
.report-cta h3 { margin: 0 0 6px; font-size: 21px; }
.report-cta p { margin: 0; color: var(--text-2); font-size: 15px; }
.c-list { margin: 10px 0 0; padding-left: 20px; color: var(--text-body); font-size: 14.5px; display: flex; flex-direction: column; gap: 6px; }
.c-list li::marker { color: var(--teal); }
.cta-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.share-row .hint { margin: 0; }
details.module { margin-top: 12px; padding: 4px 16px 12px; border-radius: 14px; background: #0c0e14; border: 1px solid var(--border); }
details.module[open] > summary { margin-bottom: 10px; color: #fff; }

/* navegación */
.step-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; }
.step-nav .btn { min-width: 130px; }

/* ---------- panel de explicaciones */
.explain { position: sticky; top: 84px; max-height: calc(100vh - 100px); overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding-right: 2px; }
.exp-kicker { font: 700 12px var(--head); letter-spacing: 1.6px; text-transform: uppercase; color: var(--teal); margin: 4px 0 2px; }
.xcard { padding: 16px 18px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); transition: border-color .3s, box-shadow .3s; }
.xcard.flash { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(52,211,153,.15); }
.xcard h4, .sheet-box h4 { margin: 0 0 6px; font: 700 15px var(--head); color: #fff; }
.xcard p, .sheet-box p { margin: 0; color: var(--text-2); font-size: 14px; line-height: 1.55; }
.xcard details, .sheet-box details { margin-top: 8px; }
.xcard summary, .sheet-box summary { cursor: pointer; color: var(--teal); font-size: 13px; }
.xcard details p, .sheet-box details p { margin-top: 6px; font-size: 13.5px; color: var(--muted); }

/* hoja inferior (celular) */
.sheet { position: fixed; inset: 0; z-index: 80; display: flex; align-items: flex-end; justify-content: center; background: rgba(0,0,0,.55); }
.sheet[hidden] { display: none; }
.sheet-box { position: relative; width: 100%; max-width: 560px; max-height: 70vh; overflow-y: auto; padding: 22px 20px 28px; border-radius: 20px 20px 0 0;
  background: var(--surface-2); border: 1px solid var(--border-strong); animation: sheetUp .25s ease; }
@keyframes sheetUp { from { transform: translateY(30px); } to { transform: none; } }
.sheet-box .x { position: absolute; right: 10px; top: 8px; border: none; background: none; color: var(--muted); font-size: 26px; cursor: pointer; padding: 4px 8px; }
.sheet-box h4 { padding-right: 30px; font-size: 17px; }
.sheet-box p { font-size: 15px; }

/* tooltip */
.tip { position: fixed; z-index: 90; pointer-events: none; padding: 8px 10px; border-radius: 10px; background: #1b1e29; border: 1px solid #333849;
  color: #fff; font-size: 12.5px; line-height: 1.45; box-shadow: 0 10px 30px rgba(0,0,0,.5); white-space: nowrap; }
.tip .k { color: var(--muted); }
.tip i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }

/* impresión: el informe limpio */
@media print {
  .nav, .ad-slot, .ad-rail, footer, .summary, .step-nav, .explain, .share-row, .cta-btns, .listen, .tool-hero, .sheet { display: none !important; }
  body { background: #fff; color: #000; }
  .acu-layout { display: block; }
  .step { border-color: #ccc; background: #fff; }
  .step h2, .step h3, .tiles dd, .pi-head b, .report-cta h3 { color: #000; }
  .tiles div, .plan-items li, details.module, .report-cta { background: #fff; border-color: #ccc; }
  .pi-where, .report-cta p { color: #222; }
}