/* dB climatização: gramática da etiqueta de eficiência */
:root {
  --paper: #ffffff;
  --ink: #111111;
  --ink-2: #4a4a4a;
  --rule: #d9d9d9;
  --soft: #f4f4f2;

  /* escala da etiqueta, do melhor ao pior */
  --a: #1b7f3f;
  --b: #8cc63f;
  --c-: #f2c230;
  --d: #f39a2b;
  --e: #c62f26;
  --a-hover: #156a34;

  --tbd-bg: #fff3a6;
  --tbd-line: #a68300;

  --gutter: 16px;
  --max: 1200px;
  --frame: 2px solid var(--ink);
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.55 Albert Sans, system-ui, sans-serif;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

h1, h2, h3 { font-weight: 500; letter-spacing: -.015em; text-wrap: balance; }
p { text-wrap: pretty; }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
ul, ol { padding: 0; list-style: none; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.i { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* marcador de dado a confirmar */
mark.tbd {
  background: var(--tbd-bg);
  color: var(--ink);
  box-shadow: inset 0 -1px 0 var(--tbd-line);
  padding: 0 .2em;
  border-radius: 2px;
}

/* faixa de rascunho */
.draft { background: var(--tbd-bg); border-bottom: 1px solid var(--tbd-line); font-size: .875rem; padding: 8px var(--gutter); text-align: center; }
.draft mark.tbd { background: #fff; }

/* botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  min-height: 48px; padding: 0 22px;
  font-size: 1rem; font-weight: 500; line-height: 1; text-decoration: none;
  border: var(--frame);
  transition: background-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-go { background: var(--a); border-color: var(--a); color: #fff; }
.btn-go:hover { background: var(--a-hover); border-color: var(--a-hover); }
.btn-ink { background: var(--ink); color: #fff; min-height: 44px; padding: 0 16px; font-size: .9375rem; }
.btn-ink:hover { background: #fff; color: var(--ink); }

.link { display: inline-flex; align-items: center; gap: .35em; min-height: 44px; font-weight: 500; text-decoration: underline; }
.link .i { transition: transform .2s var(--ease); }
.link:hover .i { transform: translateX(3px); }

/* topo */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; padding: 12px var(--gutter);
  background: rgba(255, 255, 255, .96);
}
.top::after { content: ""; position: absolute; left: var(--gutter); right: var(--gutter); bottom: 0; border-bottom: 1px solid var(--rule); }
.logo { font-size: 1.125rem; font-weight: 500; text-decoration: none; letter-spacing: -.01em; }
.logo b { font-weight: 700; }
.top nav { display: none; gap: 28px; font-size: .9375rem; }
.top nav a { text-decoration: none; color: var(--ink-2); }
.top nav a:hover { color: var(--ink); text-decoration: underline; }

main, .foot { max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }

/* hero */
.hero { display: grid; gap: 40px; padding: 40px 0 64px; }
h1 { font-size: clamp(2rem, 1.35rem + 2.6vw, 3.25rem); line-height: 1.08; letter-spacing: -.025em; max-width: 14ch; }
.lead { font-size: 1.0625rem; color: var(--ink-2); max-width: 44ch; margin: 20px 0 28px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 20px; font-size: .9375rem; color: var(--ink-2); }
.facts li { display: flex; align-items: center; gap: 8px; }
.facts li::before { content: ""; width: 8px; height: 8px; background: var(--ink); }

/* etiqueta */
.label { border: var(--frame); background: var(--paper); }
.label-head { background: var(--ink); color: #fff; padding: 14px 18px; display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; }
.label-head h2 { font-size: 1.4375rem; font-weight: 700; letter-spacing: -.005em; }
.label-head p { font-size: .875rem; color: var(--rule); }

.bars { border: 0; padding: 18px 10px 10px 18px; display: grid; grid-template-columns: 1fr 40px; gap: 8px 6px; align-items: center; }
.bars input { position: absolute; opacity: 0; pointer-events: none; }
.bar {
  --w: 100%;
  grid-column: 1;
  display: flex; align-items: center; gap: 12px;
  width: var(--w); min-height: 46px; padding: 8px 30px 8px 14px;
  font-weight: 500; line-height: 1.25; cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%);
  transform-origin: left center;
  transition: background-color .25s var(--ease), color .25s var(--ease);
}
.bar-a { --w: 76%; --c: var(--a); --t: #fff; }
.bar-b { --w: 82%; --c: var(--b); --t: var(--ink); }
.bar-c { --w: 88%; --c: var(--c-); --t: var(--ink); }
.bar-d { --w: 94%; --c: var(--d); --t: var(--ink); }
.bar-e { --w: 100%; --c: var(--e); --t: #fff; }
.bar { background: var(--c); color: var(--t); }
.bar .cls { margin-left: auto; font-size: 1.25rem; font-weight: 700; line-height: 1; }

/* ponteiro preto da etiqueta: marca a linha escolhida, com a letra da classe */
.ptr {
  grid-column: 2; visibility: hidden;
  display: grid; place-items: center; height: 46px; padding-left: 8px;
  background: var(--ink); color: #fff; font-weight: 700; font-size: 1.25rem;
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 12px 100%, 0 50%);
}
.bars input:checked + .bar + .ptr { visibility: visible; }

/* seleção: o sintoma escolhido acende, os outros ficam claros, com o texto legível */
.bars:has(input:checked) .bar { background: color-mix(in srgb, var(--c) 30%, #fff); color: var(--ink); }
.bars input:checked + .bar { background: var(--c); color: var(--t); }
.bars .bar:hover { background: color-mix(in srgb, var(--c) 55%, #fff); }
.bars input:checked + .bar:hover { background: var(--c); }
.bars input:focus-visible + .bar { outline: 2px solid var(--ink); outline-offset: 2px; clip-path: none; }

@media (prefers-reduced-motion: no-preference) {
  .bar { animation: grow .9s var(--ease) both; }
  .bar-b { animation-delay: .06s; }
  .bar-c { animation-delay: .12s; }
  .bar-d { animation-delay: .18s; }
  .bar-e { animation-delay: .24s; }
  @keyframes grow { from { transform: scaleX(.55); } }
}

.label-foot { border-top: var(--frame); padding: 16px 18px 18px; min-height: 8rem; }
.dx { display: none; }
.label:not(:has(input:checked)) .dx-0 { display: block; }
.dx p { font-size: .9375rem; margin-bottom: 2px; }
.label:has(#s-a:checked) .dx-a,
.label:has(#s-b:checked) .dx-b,
.label:has(#s-c:checked) .dx-c,
.label:has(#s-d:checked) .dx-d,
.label:has(#s-e:checked) .dx-e { display: block; }

/* seções */
.sec { padding: 56px 0; border-top: var(--frame); }
.sec-head { display: grid; gap: 8px; margin-bottom: 28px; }
.sec-head h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); line-height: 1.15; }
.sec-head p { color: var(--ink-2); max-width: 60ch; }
h3 { font-size: 1.125rem; line-height: 1.3; }

/* tabela de preços: a ficha técnica da etiqueta */
.table-wrap { overflow-x: auto; }
.ptable { width: 100%; border-collapse: collapse; border-top: 1px solid var(--ink); font-size: .9375rem; }
.ptable th, .ptable td { padding: 14px 10px; border-bottom: 1px solid var(--rule); text-align: right; vertical-align: top; }
.ptable th:first-child { text-align: left; padding-left: 0; }
.ptable td:last-child, .ptable th:last-child { padding-right: 0; }
.ptable thead th { font-size: .875rem; font-weight: 500; color: var(--ink-2); line-height: 1.3; }
.ptable tbody th { font-weight: 500; font-size: 1rem; }
.ptable tbody th small { display: block; font-size: .875rem; font-weight: 400; color: var(--ink-2); margin-top: 2px; }
.ptable td { font-weight: 500; white-space: nowrap; }
.terms { display: grid; gap: 10px; margin-top: 24px; font-size: .9375rem; color: var(--ink-2); max-width: 65ch; }
.terms strong { color: var(--ink); font-weight: 500; }
.asks { display: flex; flex-wrap: wrap; gap: 0 28px; margin-top: 16px; }

/* empresas */
.biz { display: grid; gap: 24px; justify-items: start; }
.sheet-dl { border-top: 1px solid var(--ink); width: 100%; }
.sheet-dl > div { display: grid; gap: 4px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.sheet-dl dt { font-weight: 500; }
.sheet-dl dd { margin: 0; color: var(--ink-2); font-size: .9375rem; max-width: 62ch; }

/* como funciona */
.steps { display: grid; gap: 8px; counter-reset: step; }
.steps li { counter-increment: step; background: var(--soft); padding: 18px 40px 18px 18px; clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 50%, calc(100% - 22px) 100%, 0 100%); }
.steps h3::before { content: counter(step) ". "; }
.steps p { font-size: .9375rem; color: var(--ink-2); margin-top: 4px; }

/* trabalhos: fotos reais */
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.gallery figure { border: var(--frame); background: var(--soft); }
.gallery img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; }
.gallery figcaption { border-top: var(--frame); padding: 8px 12px; font-size: .875rem; font-weight: 500; }
.note { margin-top: 16px; font-size: .9375rem; color: var(--ink-2); }

/* avaliações */
.empty { border: 1px dashed var(--ink-2); padding: 28px 20px; display: grid; gap: 8px; color: var(--ink-2); }

/* cidades */
.cities { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--ink); }
.cities li { padding: 14px 0; border-bottom: 1px solid var(--rule); font-weight: 500; }

/* dúvidas */
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; cursor: pointer; font-weight: 500; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .i { transition: transform .25s var(--ease); }
.faq details[open] summary .i { transform: rotate(45deg); }

.faq details p { padding: 0 0 20px; color: var(--ink-2); max-width: 65ch; }

/* fechamento */
.close { padding: 24px 0 72px; }
.close-body { padding: 20px 18px; display: grid; gap: 18px; justify-items: start; }
.close-body p { max-width: 48ch; }

/* rodapé */
.foot { position: relative; padding-top: 28px; padding-bottom: 112px; display: grid; gap: 12px; font-size: .875rem; color: var(--ink-2); }
.foot::before { content: ""; position: absolute; top: 0; left: var(--gutter); right: var(--gutter); border-top: var(--frame); }
.foot .logo { color: var(--ink); }
.foot ul { display: grid; gap: 4px; }

/* botão fixo */
.fab {
  position: fixed; right: 16px; bottom: max(16px, env(safe-area-inset-bottom)); z-index: 20;
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 52px; padding: 0 20px;
  background: var(--a); color: #fff; text-decoration: none; font-weight: 500;
  border: 2px solid var(--ink);
  transition: background-color .2s var(--ease), transform .2s var(--ease);
}
.fab:hover { background: var(--a-hover); }
.fab .i { width: 1.3em; height: 1.3em; }

/* telas maiores */
@media (min-width: 640px) {
  :root { --gutter: 32px; }
  .cities { grid-template-columns: 1fr 1fr; column-gap: 32px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .sheet-dl > div { grid-template-columns: 200px 1fr; column-gap: 24px; }
}

@media (min-width: 960px) {
  :root { --gutter: 48px; }
  .top nav { display: flex; }
  .hero { grid-template-columns: 1fr minmax(0, 500px); align-items: center; gap: 80px; padding: 72px 0 96px; }
  .sec { display: grid; grid-template-columns: 3fr 9fr; gap: 48px; padding: 72px 0; }
  .sec-head { align-self: start; position: sticky; top: 96px; margin-bottom: 0; }
  .sec > :not(.sec-head) { grid-column: 2; }
  .bar-a { --w: 64%; } .bar-b { --w: 73%; } .bar-c { --w: 82%; } .bar-d { --w: 91%; }
  .steps { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .steps li { padding-right: 30px; }
  .cities { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .ptable { font-size: 1rem; }
  .close-body { grid-template-columns: 1fr auto; align-items: center; padding: 28px; }

}

@media (max-width: 340px) {
  .fab span { display: none; }
  .fab { padding: 0 15px; }
}

@media print {
  .draft, .fab, .top nav { display: none; }
}