/* Tokens da direção visual aprovada (Estudo de produto, seção 11).
   Paleta e tipografia não dependem do nome/logo — só a marca (wordmark)
   é provisória até o nome fechar. */
:root {
  --bg: #F3F5F7;
  --surface: #FFFFFF;
  --surface-2: #E9ECF1;
  --border: #D6DAE2;
  --border-strong: #BCC2CE;
  --ink: #14171C;
  --ink-2: #4B535F;
  --ink-3: #626B78; /* mais escuro que o valor original do estudo (#7B8492) — aquele dava 3.46:1
                        contra o fundo branco, abaixo do mínimo WCAG AA (4.5:1) para texto normal */
  --accent: #2648E0;
  --accent-ink: #1B34A8;
  --accent-wash: #E7EBFB;
  --ok: #1C7F4E;
  --ok-wash: #E0F0E7;
  --warn: #9A6714;
  --warn-wash: #F5EBD8;
  --crit: #BE372B;
  --crit-wash: #F6E2DF;

  /* cor por categoria (Catálogo Inicial, aprovado) — EL usa o próprio acento do site */
  --cat-el: #2648E0; --cat-el-wash: #E7EBFB;
  --cat-dr: #0E8F6E; --cat-dr-wash: #DEF1EA;
  --cat-fe: #B4681A; --cat-fe-wash: #F4E8D9;

  --font-display: "Archivo", "Segoe UI", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", monospace;

  /* escala tipográfica modular (mesma do estudo/wireframes) */
  --step--1: 0.82rem;
  --step-0: 1rem;
  --step-1: 1.2rem;
  --step-2: 1.55rem;
  --step-3: 2.1rem;
  --step-4: 2.9rem;

  --touch-min: 2.75rem; /* ~44px — alvo de toque confortável nas ações principais */
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 var(--font-body);
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; margin: 0 0 .5rem; text-wrap: balance; }
h1 { font-size: var(--step-3); }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }

/* transições — feedback sutil em todo elemento interativo, exceto para quem pede menos movimento */
@media (prefers-reduced-motion: no-preference) {
  a, .btn, .card, .pcard, input, select, textarea {
    transition: background-color .15s ease, border-color .15s ease, color .15s ease,
                transform .15s ease, box-shadow .15s ease;
  }
}
h4 { font-size: var(--step-0); }
a { color: var(--accent); }
.mono { font-family: var(--font-mono); }

/* foco visível em todo elemento interativo — nunca remover sem alternativa */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--accent); color: #fff; padding: .7rem 1.2rem;
  border-radius: 0 0 6px 0; text-decoration: none; font-weight: 600;
}
.skip-link:focus { left: 0; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* topbar */
.topbar {
  display: flex; align-items: center; gap: 1rem;
  padding: .9rem 0; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.topbar .brand {
  display: flex; align-items: center; gap: .6rem;
  color: var(--ink); text-decoration: none; line-height: 1.1;
}
.topbar .brand-mark { flex: none; }
.topbar .brand-word {
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem;
  display: flex; flex-direction: column;
}
.topbar .brand .brand-sub {
  font-family: var(--font-mono); font-weight: 400; font-size: .62rem;
  letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3);
}
.topbar nav { display: flex; flex-wrap: wrap; gap: .5rem 1rem; margin-left: auto; align-items: center; }
.topbar nav a { color: var(--ink-2); text-decoration: none; font-size: .9rem; padding: .4rem 0; }
.topbar nav a:hover, .topbar nav a:focus-visible { color: var(--accent); }
@media (max-width: 480px) {
  .topbar .wrap { flex-wrap: wrap; }
  .topbar nav { margin-left: 0; width: 100%; justify-content: flex-start; }
}

/* barra de contexto: local + datas */
.ctxbar {
  background: var(--surface-2); border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
}
.ctxbar .wrap { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.ctxbar-label { display: flex; gap: .7rem; align-items: center; flex: none; }
.ctxbar-label svg { flex: none; color: var(--accent); }
.ctxbar-label strong { display: block; font-size: .9rem; }
.ctxbar-label span { display: block; color: var(--ink-3); font-size: .78rem; }
.ctxbar form { display: flex; gap: .6rem; flex-wrap: wrap; align-items: flex-end; }
.ctxbar .field-inline label { display: block; font-size: .72rem; color: var(--ink-3); margin-bottom: .2rem; }
.ctxbar input, .ctxbar select {
  border: 1px solid var(--border-strong); border-radius: 6px;
  padding: .5rem .6rem; font: inherit; background: var(--surface);
}

main.page { padding-block: 1.6rem 3rem; }

/* botões — alvo de toque confortável (~44px) nas ações principais */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  border: 1px solid var(--border-strong); border-radius: 6px;
  min-height: var(--touch-min); padding: .55rem 1.1rem; font: inherit; font-weight: 600;
  cursor: pointer; touch-action: manipulation;
  background: var(--surface); color: var(--ink); text-decoration: none;
}
.btn.primary { background: var(--accent); border-color: var(--accent-ink); color: #fff; }
.btn.primary:hover { background: var(--accent-ink); }
.btn.block { width: 100%; }
.btn.sm { min-height: 2.25rem; padding: .35rem .8rem; font-size: .85rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* cards / grid de produtos */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 1rem; display: flex; flex-direction: column; gap: .5rem;
}
/* cards que são links clicáveis (categoria, produto) — sinalizar com hover/foco */
a.card:hover, a.pcard:hover, .pcard:has(a:hover) {
  border-color: var(--border-strong); box-shadow: 0 4px 14px rgba(20,23,28,.08); transform: translateY(-2px);
}
a.card:focus-visible { outline-offset: 3px; }
.pcard { display: flex; flex-direction: column; }
/* Caixa de foto/placeholder — utilitário geral, não só dentro de cards.
   Sem isso, todo lugar que usa .img fora de .pcard fica sem fundo/centralização. */
.img {
  background: var(--surface-2); border-radius: 8px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-3); font-size: .8rem; text-align: center;
}
.pcard .img, .prod-img { aspect-ratio: 4/3; border-radius: 8px 8px 0 0; }
.pcard .body { flex: 1; padding: .8rem; display: flex; flex-direction: column; gap: .35rem; }
.pcard .body .btn { margin-top: auto; }
.pcard .code { font-family: var(--font-mono); font-size: .75rem; color: var(--ink-3); }
.pcard h3 { font-size: 1rem; margin: 0; }

/* filtros da sidebar do catálogo */
.filtro-painel {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 1.1rem 1.2rem;
}
.filtro-painel h4 {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin: 1.1rem 0 .5rem;
}
.filtro-painel > h4:first-child { margin-top: 0; }
.filtro-painel > hr { border: none; border-top: 1px solid var(--border); margin: 1rem 0 0; }
ul.filtro-lista { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .45rem; }
ul.filtro-lista a { color: var(--ink-2); text-decoration: none; font-size: .88rem; }
ul.filtro-lista a:hover, ul.filtro-lista a:focus-visible { color: var(--accent); }
ul.filtro-lista a.ativo { color: var(--accent-ink); font-weight: 700; }

/* tag de categoria no card do produto (cor por grupo, do Catálogo Inicial aprovado) */
.cat-tag {
  display: inline-block; align-self: flex-start; padding: .12rem .55rem; border-radius: 999px;
  font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em;
}
.cat-tag.cat-el { background: var(--cat-el-wash); color: var(--cat-el); }
.cat-tag.cat-dr { background: var(--cat-dr-wash); color: var(--cat-dr); }
.cat-tag.cat-fe { background: var(--cat-fe-wash); color: var(--cat-fe); }
.price { font-family: var(--font-mono); font-weight: 600; color: var(--ink); font-size: .85rem; }

/* "key specs" no card do catálogo — 2 linhas de especificação (wireframe Tela 01) */
ul.key-specs { list-style: none; margin: 0; padding: 0; font-size: .82rem; color: var(--ink-2); }
ul.key-specs li { position: relative; padding-left: .8rem; }
ul.key-specs li::before { content: "•"; position: absolute; left: 0; color: var(--ink-3); }

.tag { display: inline-flex; align-items: center; gap: .3rem; padding: .15rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.icon-check { flex: none; }
.tag.ok { background: var(--ok-wash); color: var(--ok); }
.tag.warn { background: var(--warn-wash); color: var(--warn); }
.tag.crit { background: var(--crit-wash); color: var(--crit); }

.qtd-stepper { display: flex; align-items: center; gap: .4rem; }
.qtd-stepper .btn.sm { min-width: 2.25rem; padding: .35rem .5rem; }
.qtd-stepper span { min-width: 1.2rem; text-align: center; font-family: var(--font-mono); }

.summary-row { display: flex; justify-content: space-between; font-size: .9rem; padding: .2rem 0; }
.summary-row.total { border-top: 1px solid var(--border); margin-top: .3rem; padding-top: .5rem; font-weight: 700; }

.muted { color: var(--ink-3); font-size: .85rem; }

.stepper { display: flex; flex-wrap: wrap; gap: .3rem .7rem; background: var(--surface); border-bottom: 1px solid var(--border); padding: .7rem 1.25rem; font-size: .85rem; }
.stepper .st { color: var(--ink-3); }
.stepper .st.on { color: var(--accent); font-weight: 700; }
.stepper .st.done { color: var(--ok); }

.cols-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 1.2rem; }
.cols-sidebar { display: grid; grid-template-columns: 220px 1fr; gap: 1.2rem; }
@media (max-width: 800px) {
  .cols-2, .cols-sidebar { grid-template-columns: 1fr; }
}

table.wt { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.wt th, table.wt td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--border); }

form .field { display: flex; flex-direction: column; gap: .3rem; margin-bottom: 1rem; }
form label { font-size: .85rem; font-weight: 600; color: var(--ink-2); }
form input, form select, form textarea {
  min-height: var(--touch-min); border: 1px solid var(--border-strong); border-radius: 6px;
  padding: .55rem .7rem; font: inherit; background: var(--surface); color: var(--ink);
}
form textarea { min-height: 6rem; }
form input:focus-visible, form select:focus-visible, form textarea:focus-visible {
  border-color: var(--accent);
}
form input[aria-invalid="true"], form select[aria-invalid="true"], form textarea[aria-invalid="true"] {
  border-color: var(--crit);
}
.help-text { color: var(--ink-3); font-size: .8rem; margin: 0; }

.field-legend { font-size: .85rem; font-weight: 600; color: var(--ink-2); padding: 0; margin: 0 0 .5rem; }
/* grupos de rádio/checkbox (RadioSelect, etc.) — alvo de toque confortável, sem marcador de lista */
form ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
form ul li { min-height: var(--touch-min); display: flex; align-items: center; }
form ul label { display: flex; align-items: center; gap: .4rem; font-weight: 400; color: var(--ink); cursor: pointer; }
form ul input[type="radio"], form ul input[type="checkbox"] { min-height: auto; width: 1.1rem; height: 1.1rem; margin: 0; }
.errorlist { color: var(--crit); font-size: .85rem; list-style: none; padding: 0; margin: .2rem 0 0; }
.errorlist p { margin: .1rem 0; }

.msgs { list-style: none; padding: 0; margin: .8rem 0; }
.msgs li { background: var(--accent-wash); color: var(--accent-ink); padding: .6rem .9rem; border-radius: 6px; margin-bottom: .4rem; font-size: .9rem; }
.msgs li.error { background: var(--crit-wash); color: var(--crit); }

footer.site { border-top: 1px solid var(--border); padding: 1.5rem 0; margin-top: 3rem; color: var(--ink-3); font-size: .85rem; }
footer.site nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; margin-top: .6rem; }
footer.site nav a { color: var(--ink-2); }

.lede { color: var(--ink-2); font-size: 1.05rem; max-width: 62ch; }

/* "Como funciona" — passos numerados */
ol.passos { list-style: none; margin: 2rem 0 0; padding: 0; counter-reset: none; }
ol.passos li { display: flex; gap: 1rem; padding: 1.1rem 0; border-top: 1px solid var(--border); }
ol.passos li:first-child { border-top: none; }
ol.passos .n {
  flex: none; width: 2.25rem; height: 2.25rem; border-radius: 50%;
  background: var(--accent-wash); color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600;
}
ol.passos h3 { margin: 0 0 .25rem; font-size: 1rem; }
ol.passos p { margin: 0; color: var(--ink-2); }

/* FAQ em acordeão */
.faq-lista { display: flex; flex-direction: column; gap: .6rem; margin-top: 1.5rem; }
.faq-lista details {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: .9rem 1rem;
}
.faq-lista summary {
  cursor: pointer; font-weight: 600; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: .6rem;
}
.faq-lista summary::-webkit-details-marker { display: none; }
.faq-lista summary::after { content: "+"; color: var(--accent); font-size: 1.2rem; flex: none; }
.faq-lista details[open] summary::after { content: "−"; }
.faq-lista p { color: var(--ink-2); margin: .6rem 0 0; }