/* df-solutions: folha de estilo partilhada (brief em site-df/docs/identidade.md).
   Os tokens e os componentes comuns vêm primeiro; o que só a página principal usa
   está no bloco "principal", no fim. */

:root {
  --ink: #14213D;
  --ink-2: #3A4560;
  --amber: #F2A541;
  --cream: #F4F1E8;
  --paper: #FCFBF7;
  --line: #14213D;
  --rule: #C9C4B4;
  --on-ink: #F4F1E8;
  --on-ink-2: #C7CCD8;
  --ring: #14213D;
  --btn-sombra: var(--ink);    /* em fundo claro; em fundo escuro passa a âmbar */

  --ex1-bg: #F6E3C4; --ex1-ink: #5B2A10; --ex1-acc: #A34A1C;
  --ex2-bg: #FFD23F; --ex2-ink: #1C1C1C; --ex2-acc: #1C1C1C;
  --ex3-bg: #F2F6FB; --ex3-ink: #1E4A92; --ex3-acc: #1E4A92; --ex3-tile: #DCE6F4;
  --ex4-bg: #E6EEDC; --ex4-ink: #22442A; --ex4-acc: #4F7F34;
  --ex5-bg: #24292D; --ex5-ink: #EFEBE2; --ex5-acc: #E8C468;
  --ex6-bg: #D9F0F4; --ex6-ink: #0D4B59; --ex6-acc: #1F8FA3;

  --f-d: "Bricolage Grotesque", "Arial Narrow", sans-serif;
  --f-t: "Albert Sans", "Segoe UI", sans-serif;
  --f-m: "IBM Plex Mono", Consolas, monospace;

  --gut: clamp(16px, 4vw, 56px);
  --max: 1440px;
  --bw: 3px;
  --shadow: 6px 6px 0 var(--ink);
  --radius: 4px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur-micro: 90ms;
  --dur-short: 180ms;
}

/* base */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; scrollbar-color: var(--ink) var(--cream); }
body { margin: 0; background: var(--cream); color: var(--ink); font: 400 17px/1.6 var(--f-t); -webkit-font-smoothing: antialiased; caret-color: var(--amber); }
::selection { background: var(--amber); color: var(--ink); }
h1, h2, h3 { font-family: var(--f-d); margin: 0; text-wrap: balance; overflow-wrap: break-word; min-width: 0; }
p { margin: 0; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gut); }

.skip { position: absolute; left: 16px; top: -80px; z-index: 50; padding: 8px 14px; background: var(--ink); color: var(--on-ink); }
.skip:focus-visible { top: 16px; outline-color: var(--amber); }

/* botões: oito estados */
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 22px;
  border: var(--bw) solid var(--ink); border-radius: var(--radius);
  background: var(--ink); color: var(--on-ink); box-shadow: 5px 5px 0 var(--btn-sombra);
  font: 600 17px/1 var(--f-t); text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), box-shadow var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}
.btn svg { width: 20px; height: 20px; flex: none; }
.btn:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--btn-sombra); }
.btn:active { transform: translate(5px, 5px); box-shadow: 0 0 0 var(--btn-sombra); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
.btn[aria-busy="true"] { cursor: progress; }
.btn--quiet { background: transparent; color: var(--ink); box-shadow: none; border-color: transparent; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; padding-inline: 6px; }
.btn--quiet:hover { transform: none; box-shadow: none; text-decoration-color: var(--amber); }
.btn--quiet:active { transform: translateY(1px); box-shadow: none; }

/* nav */
.topo { border-bottom: var(--bw) solid var(--ink); background: var(--cream); }
.topo .wrap { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 800 23px/1 var(--f-d); letter-spacing: -0.03em; margin-right: auto; }
.marca img { width: 38px; height: 38px; }
.topo nav { display: flex; gap: 6px; }
.topo nav a { text-decoration: none; font-weight: 600; padding: 10px 12px; border-radius: var(--radius); }
.topo nav a:hover { background: var(--paper); box-shadow: inset 0 -3px 0 var(--amber); }
.topo .btn { min-height: 46px; }

/* figuras do manual */
.ref { font: 500 14px/1.6 var(--f-m); color: var(--ink); white-space: nowrap; }
.ln { fill: none; stroke: var(--ink); stroke-width: 2.4; stroke-linejoin: round; stroke-linecap: round; }
.ln-fino { fill: none; stroke: var(--ink); stroke-width: 1.4; stroke-linecap: round; }
.face-a { fill: var(--paper); }
.face-b { fill: var(--cream); }
.face-c { fill: var(--rule); }
.chamada circle { fill: var(--amber); stroke: var(--ink); stroke-width: 2.4; }
.chamada text { font: 500 15px var(--f-m); fill: var(--ink); text-anchor: middle; dominant-baseline: central; }
.lider { stroke: var(--ink); stroke-width: 1.4; stroke-dasharray: 3 4; fill: none; }

/* capítulos */
.cap { padding-block: clamp(72px, 9vw, 136px); }
.cap--papel { background: var(--paper); border-block: var(--bw) solid var(--ink); }
.cap--tinta { background: var(--ink); color: var(--on-ink); --ring: var(--amber); --btn-sombra: var(--amber); }
.cab { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 24px clamp(24px, 5vw, 80px); align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.cab h2 { font-size: clamp(2.5rem, 4.4vw, 4.4rem); line-height: 1; letter-spacing: -0.03em; font-weight: 800; }
.cab p { font-size: 19px; max-width: 52ch; color: var(--ink-2); }

/* rodapé */
.rodape { background: var(--ink); color: var(--on-ink); --ring: var(--amber); --btn-sombra: var(--amber); }
.rodape .wrap { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 20px 40px; align-items: center; padding-block: 44px; }
.rodape .marca img { width: 34px; height: 34px; }
.rodape p { color: var(--on-ink-2); max-width: 52ch; }
.rodape a { text-underline-offset: 4px; }

@media (max-width: 64rem) {
  .topo nav { display: none; }
  .cab { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 40rem) {
  body { font-size: 16px; }
  .topo .btn { padding-inline: 14px; }
  .rodape .wrap { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* ===================== principal ===================== */

/* hero */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: center; padding-block: clamp(32px, 5vw, 72px) clamp(40px, 6vw, 88px); }
.hero h1 { font-size: clamp(3rem, 6.2vw, 6.4rem); line-height: .96; letter-spacing: -0.04em; font-weight: 800; }
.hero h1 > span { display: block; }
.h1-lead { font-size: .45em; line-height: 1.1; letter-spacing: -0.02em; margin-bottom: .3em; }
.hero .lede { margin-top: 24px; font-size: clamp(18px, 1.4vw, 21px); max-width: 46ch; color: var(--ink-2); }
.acoes { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 22px; margin-top: 32px; }
/* Tab. 1: a ficha técnica da conversa */
.ficha { margin-top: 36px; width: min(100%, 30rem); border-collapse: collapse; border-top: var(--bw) solid var(--ink); border-bottom: var(--bw) solid var(--ink); font-size: 17px; }
.ficha caption { text-align: left; padding-block: 8px 2px; color: var(--ink-2); font-size: 15px; text-wrap: balance; }
.ficha caption .ref { margin-right: 12px; }
.ficha th, .ficha td { padding: 9px 0; border-bottom: 1px solid var(--rule); }
.ficha tr:last-child th, .ficha tr:last-child td { border-bottom: 0; }
.ficha th { text-align: left; font-weight: 400; color: var(--ink-2); white-space: nowrap; padding-right: 16px; }
.ficha td { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* placas da Fig. 0: o que cada peça é, desenhado no plano isométrico */
.placa text { dominant-baseline: auto; }
.pl-d { font-family: var(--f-d); font-weight: 800; letter-spacing: -0.02em; }
.pl-t { font-family: var(--f-t); font-weight: 600; }
.pl-m { font-family: var(--f-m); font-weight: 500; }
.pl-c { text-anchor: middle; dominant-baseline: central; }
.placa .pl-c { dominant-baseline: central; }
.pl-ink { fill: var(--ink); }
.pl-papel { fill: var(--paper); }
.pl-amber { fill: var(--amber); }
.pl-traco { stroke: var(--ink); stroke-width: 1.6; }
.pl-op { opacity: .35; }
.pl-ex1 { fill: var(--ex1-bg); }
.pl-ex1-ink { fill: var(--ex1-ink); }
.pl-ex1-acc { fill: var(--ex1-acc); }

/* Fig. 0: a caixa */
.caixa { margin: 0; min-width: 0; }
.caixa svg { width: 100%; height: auto; display: block; overflow: visible; }
.caixa figcaption { margin-top: 6px; padding-bottom: 16px; display: flex; gap: 12px; color: var(--ink-2); font-size: 15px; }
.tampa { display: none; }
.gsap .tampa { display: inline; }

/* Sem GSAP: a versão CSS ligada ao scroll, onde o browser a suporta. Com GSAP, a montagem é dele. */
@keyframes junta { to { transform: translate(var(--dx), var(--dy)) scale(.86); } }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: scroll()) {
    html:not(.gsap) .peca { transform-box: fill-box; transform-origin: center; animation: junta linear both; animation-timeline: scroll(root); animation-range: 0px 560px; }
  }
}

.aviso { display: inline-flex; gap: 8px; align-items: flex-start; margin-top: 14px; font-style: italic; color: var(--ink); }
.aviso svg { width: 18px; height: 18px; flex: none; margin-top: calc((1lh - 18px) / 2); }

/* exemplos */
.figs { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(20px, 2.6vw, 36px); }
.fig { margin: 0; min-width: 0; }
.fig:nth-child(1) { grid-column: span 7; }
.fig:nth-child(2) { grid-column: span 5; }
.fig:nth-child(3), .fig:nth-child(4), .fig:nth-child(5) { grid-column: span 4; }
.fig:nth-child(6) { grid-column: span 12; }
.capa { position: relative; border: var(--bw) solid var(--ink); box-shadow: var(--shadow); min-height: 300px; padding: 22px 24px; display: flex; flex-direction: column; gap: 14px; overflow: hidden; }
.capa h3 { font-size: clamp(30px, 3vw, 46px); line-height: .98; letter-spacing: -0.03em; }
.capa p { font-size: 18px; max-width: 30ch; }
.capa .falso { margin-top: auto; align-self: flex-start; padding: 9px 16px; font: 600 15px/1 var(--f-t); border: 2px solid currentColor; }
.fig figcaption { margin-top: 16px; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px 14px; }
.fig figcaption b { font: 700 18px/1.3 var(--f-d); }
.fig figcaption span:last-child { grid-column: 2; color: var(--ink-2); font-size: 16px; }

.c1 { background: var(--ex1-bg); color: var(--ex1-ink); }
.c1 h3 { font-weight: 800; font-size: clamp(38px, 4.4vw, 68px); font-variation-settings: "opsz" 96; }
.c1 .falso { background: var(--ex1-acc); color: var(--ex1-bg); border-color: var(--ex1-acc); border-radius: 999px; }
.c2 { background: var(--ex2-bg); color: var(--ex2-ink); }
.c2 h3 { font-family: var(--f-t); font-weight: 600; text-transform: uppercase; font-size: clamp(26px, 2.6vw, 38px); line-height: 1.02; }
.c2::after { content: ""; position: absolute; inset: auto 0 0 0; height: 16px; background: repeating-linear-gradient(-45deg, var(--ex2-ink) 0 12px, var(--ex2-bg) 12px 24px); }
.c3 { background: var(--ex3-bg); color: var(--ex3-ink); background-image: conic-gradient(from 45deg, var(--ex3-tile) 25%, transparent 0 50%, var(--ex3-tile) 0 75%, transparent 0); background-size: 34px 34px; }
.c3 { gap: 0; }
.c3 h3, .c3 p { background: var(--ex3-bg); padding: 6px 8px; margin-inline: -8px; max-width: none; }
.c3 h3 { padding-bottom: 10px; }
.c3 .falso { margin-top: auto; }
.c3 h3 { font-weight: 500; font-style: normal; }
.c3 .falso { background: var(--ex3-bg); }
.c4 { background: var(--ex4-bg); color: var(--ex4-ink); }
.c4 h3 { font-weight: 400; font-size: clamp(32px, 3.2vw, 48px); }
.c4 .falso { border-radius: 999px 999px 999px 4px; color: var(--ex4-acc); }
.c5 { background: var(--ex5-bg); color: var(--ex5-ink); }
.c5 h3 { font-family: var(--f-t); font-weight: 400; font-size: clamp(30px, 3vw, 44px); }
.c5 p { color: var(--ex5-acc); font-family: var(--f-d); font-size: 22px; }
.c6 { background: var(--ex6-bg); color: var(--ex6-ink); border-radius: 28px; min-height: 260px; }
.c6 h3 { font-weight: 700; font-size: clamp(36px, 5vw, 76px); }
.c6 .falso { background: var(--ex6-acc); color: var(--ex6-bg); border-color: var(--ex6-acc); border-radius: 999px; }

/* pacote */
.pacote { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.pecas { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: var(--bw) solid var(--ink); }
.pecas li { padding: 22px 20px 26px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 36px minmax(0, 1fr); grid-template-rows: auto 1fr; align-items: start; gap: 6px 14px; min-width: 0; }
.pecas li:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--rule); }
.num { width: 36px; height: 36px; border-radius: 50%; background: var(--amber); border: 2px solid var(--ink); display: grid; place-items: center; font: 500 16px/1 var(--f-m); }
.pecas h3 { font-size: 22px; line-height: 36px; letter-spacing: -0.015em; }
.pecas p { grid-column: 2; color: var(--ink-2); }

.pasta { margin: 0; position: sticky; top: 24px; min-width: 0; }
.pasta pre { margin: 0; padding: clamp(20px, 2.4vw, 32px); background: var(--paper); border: var(--bw) solid var(--ink); box-shadow: var(--shadow); font: 400 clamp(15px, 1.45vw, 21px)/1.55 var(--f-m); color: var(--ink); overflow-x: auto; }
.pasta pre .l { display: block; }
.pasta pre .l:first-child { font-weight: 500; }
.pasta figcaption { margin-top: 18px; display: flex; gap: 12px; color: var(--ink-2); }
.js .pasta pre .l { opacity: 0; transform: translateX(-6px); transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out); transition-delay: calc(var(--i, 0) * 70ms); }
.js .pasta.is-in pre .l { opacity: 1; transform: none; }

/* passos */
.cap--tinta .cab p { color: var(--on-ink-2); }
.passos { list-style: none; margin: 0; padding: 0; counter-reset: passo; border-block: var(--bw) solid var(--on-ink); }
.passos li { counter-increment: passo; display: grid; grid-template-columns: clamp(80px, 9vw, 150px) minmax(0, 1fr); gap: 8px clamp(18px, 3vw, 40px); align-items: start; width: min(100%, 50rem); font-size: 19px; padding-block: clamp(28px, 3.4vw, 48px); border-bottom: 1px solid var(--ink-2); }
.passos li:nth-child(2) { margin-left: calc((100% - min(100%, 50rem)) / 2); }
.passos li:nth-child(3) { margin-left: calc(100% - min(100%, 50rem)); border-bottom: 0; }
.passos li::before { content: counter(passo); grid-row: span 2; width: clamp(72px, 8vw, 120px); aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: var(--amber); border: 4px solid var(--on-ink); color: var(--ink); font: 500 clamp(34px, 4vw, 60px)/1 var(--f-m); font-variant-numeric: tabular-nums; }
.legenda-fig { margin-top: 18px; display: flex; gap: 12px; color: var(--on-ink-2); }
.cap--tinta .ref { color: var(--on-ink); }
.passos h3, .passos p { grid-column: 2; }
.passos h3 { font-size: clamp(28px, 2.8vw, 42px); line-height: 1.05; letter-spacing: -0.025em; padding-top: 6px; }
.passos p { font-size: 19px; color: var(--on-ink-2); max-width: 46ch; padding-top: 4px; }

/* fecho */
.fecho .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.fecho h2 { font-size: clamp(4rem, 8vw, 8.5rem); line-height: .9; letter-spacing: -0.05em; font-weight: 800; margin-bottom: 28px; }
.caixa-fechada { margin: 0; min-width: 0; }
.caixa-fechada svg { width: 100%; height: auto; display: block; overflow: visible; }
.caixa-fechada figcaption { margin-top: 12px; display: flex; gap: 12px; color: var(--ink-2); font-size: 15px; }
.fecho p { font-size: 20px; max-width: 42ch; color: var(--ink-2); }
.fecho .btn { margin-top: 28px; min-height: 60px; font-size: 19px; padding-inline: 28px; }
.contacto { margin-top: 28px; display: flex; align-items: center; gap: 10px; }
.contacto svg { width: 20px; height: 20px; flex: none; }
.contacto a { font-weight: 600; color: var(--ink); text-decoration-thickness: 2px; text-underline-offset: 5px; overflow-wrap: anywhere; }
.contacto a:hover { text-decoration-color: var(--amber); }

@media (max-width: 64rem) {
  .hero .wrap, .pacote, .fecho .wrap { grid-template-columns: minmax(0, 1fr); }
  .caixa { max-width: 560px; }
  .fig:nth-child(n) { grid-column: span 6; }
  .fig:nth-child(6) { grid-column: span 12; }
  .pasta { position: static; }
}
@media (max-width: 40rem) {
  .fig:nth-child(n) { grid-column: span 12; }
  .pecas { grid-template-columns: minmax(0, 1fr); }
  .pecas li:nth-child(even) { padding-left: 0; border-left: 0; }
  .passos li::before { width: 64px; font-size: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .js .pasta pre .l { opacity: 1; transform: none; transition: none; }
  .peca { animation: none; }
  .gsap .tampa { display: none; }
}
@media (max-width: 30rem) {
  .topo .marca-nome { display: none; }
  .topo .wrap { gap: 16px; }
}
@media (max-width: 22rem) {
  .ficha td { white-space: normal; }
}

/* ===================== 404 ===================== */
.nao-ha .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: center; min-height: calc(100svh - 79px - 140px); padding-block: clamp(40px, 6vw, 96px); }
.nao-ha h1 { font-size: clamp(2.8rem, 5.6vw, 5.6rem); line-height: .96; letter-spacing: -0.04em; font-weight: 800; }
.nao-ha-txt p { margin-top: 24px; font-size: clamp(18px, 1.4vw, 21px); max-width: 42ch; color: var(--ink-2); }
.caixa-vazia { margin: 0; min-width: 0; }
.caixa-vazia svg { width: 100%; max-width: 560px; height: auto; display: block; overflow: visible; }
.caixa-vazia figcaption { margin-top: 12px; display: flex; gap: 12px; color: var(--ink-2); font-size: 15px; }
.chamada--grande text { font: 800 30px var(--f-d); }
@media (max-width: 64rem) {
  .nao-ha .wrap { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .caixa-vazia { order: -1; max-width: 420px; }
}