/* ============================================================
   ARKH — sistema de design · "do papel para a luz"
   Referência estética: o arquivo bem feito — a lombada, a ficha
   de catálogo, o índice — levado a acabamento editorial.
   Light-first, silêncio visual, ordem. Serif para leitura e
   display, grotesque para UI. Filetes de 1px, cantos de 2px,
   um único acento verde-arquivo. Movimento discreto, só
   transform/opacity, sempre com porta de saída (reduced motion).
   ============================================================ */

:root{
  --bg:#FAF8F3;          /* papel quente */
  --surface:#FFFFFF;
  --surface-2:#F3F0E8;
  --line:#E3DED4;
  --line-strong:#C9C2B2;
  --line-ui:#857E71;   /* bordas de controlos: >=3:1 (WCAG 1.4.11) */
  --text:#1C1A16;        /* tinta */
  --text-2:#57524A;
  --text-3:#6E685D;      /* texto terciário (AA em corpo pequeno) */
  --cinza-arquivo:#8B857A; /* decorativo: filetes, réguas */
  --accent:#2F5D3A;      /* verde-arquivo */
  --accent-ink:#FFFFFF;
  --accent-hover:#254D2F;
  --erro:#A03535;
  --shadow-1:rgba(28,26,22,.07);
  --shadow-2:rgba(28,26,22,.16);

  --radius:2px;
  --maxw:1080px;
  --medida:36rem;        /* medida de leitura: a MESMA para título e corpo,
                            em rem — 'ch' dava 68 caracteres do tamanho de
                            cada elemento e o h2 saltava 340px para fora
                            da coluna que encima. */
  --header-h:66px;
  --filtro-h:0px;
  --ease:cubic-bezier(.16,1,.3,1);
  --font-serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --font-ui:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#181611;--surface:#1F1C16;--surface-2:#26221B;
    --line:#37332A;--line-strong:#4C463A;--line-ui:#787060;
    --text:#EDE9DF;--text-2:#BDB5A5;--text-3:#948D80;
    --accent:#8FBF9B;--accent-ink:#14261A;--accent-hover:#A4CFAF;
    --erro:#D98080;
    --shadow-1:rgba(0,0,0,.32);--shadow-2:rgba(0,0,0,.5);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#181611;--surface:#1F1C16;--surface-2:#26221B;
  --line:#37332A;--line-strong:#4C463A;--line-ui:#787060;
  --text:#EDE9DF;--text-2:#BDB5A5;--text-3:#948D80;
  --accent:#8FBF9B;--accent-ink:#14261A;--accent-hover:#A4CFAF;
  --erro:#D98080;
  --shadow-1:rgba(0,0,0,.32);--shadow-2:rgba(0,0,0,.5);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
/* o cabeçalho é sticky: sem este recuo, as âncoras aterram por baixo dele.
   --filtro-h só é != 0 na página de prazos, e só enquanto a barra de
   filtros estiver mesmo presa (o prazos.js zera-a quando não está). */
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + var(--filtro-h) + 1rem)}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  /* o animation-delay tem de ir junto: com fill-mode:both, um atraso vivo
     mantém o elemento no primeiro fotograma (invisível) durante esse tempo. */
  *,*::before,*::after{animation-duration:.01ms !important;animation-delay:0s !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--font-serif);font-size:1.06rem;line-height:1.7;
  -webkit-font-smoothing:antialiased;
  min-height:100dvh;display:flex;flex-direction:column;
}
main{flex:1}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .18s ease,text-decoration-thickness .18s ease}
a:hover{color:var(--accent)}
main a:not(.btn):not(.cell):hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
::selection{background:var(--accent);color:var(--accent-ink)}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}

h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.16;letter-spacing:-.008em;text-wrap:balance}
h1{font-size:clamp(2.2rem,5vw,3.4rem)}
h2{font-size:clamp(1.45rem,3vw,2.05rem)}
h3{font-size:1.18rem}
p{max-width:66ch}
strong{font-weight:600}
em{font-style:italic}
.ui,.btn,.etiqueta,.site-nav,.field label,.spec-table,.chip,.form-steps{font-family:var(--font-ui)}
.num{font-family:var(--font-ui);font-variant-numeric:tabular-nums}
code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);padding:.06em .3em}

.wrap{width:min(var(--maxw),100% - 2.5rem);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:1rem;top:-4rem;z-index:300;background:var(--accent);color:var(--accent-ink);padding:.55rem 1rem;border-radius:var(--radius);font-family:var(--font-ui);font-weight:600;text-decoration:none;transition:top .15s ease}
.skip-link:focus{top:1rem;color:var(--accent-ink)}
.table-scroll{overflow-x:auto}

/* ---------- capitular editorial ---------- */
.dropcap::first-letter{
  font-family:var(--font-serif);font-weight:600;font-style:italic;
  font-size:3.1em;line-height:.78;float:left;
  padding:.1em .14em 0 0;color:var(--accent);
}

/* ---------- etiqueta de catálogo — assinatura visual ---------- */
.etiqueta{
  display:flex;align-items:baseline;flex-wrap:wrap;gap:.85rem;
  font-size:.72rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--text-3);
  margin-bottom:1.2rem;
}
.etiqueta .reg{color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.18em;white-space:nowrap}
.etiqueta .acc{color:var(--accent)}
.etiqueta::after{content:"";height:1px;background:var(--line-strong);flex:1;max-width:200px}

/* fleuron — divisor tipográfico entre blocos maiores */
.fleuron{display:flex;justify-content:center;align-items:center;gap:1rem;color:var(--cinza-arquivo);margin-top:3.2rem}
.fleuron::before,.fleuron::after{content:"";height:1px;width:min(110px,24vw);background:var(--line-strong)}
.fleuron svg{flex:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px var(--shadow-1)}
.site-header .wrap{display:flex;align-items:center;gap:1rem;min-height:var(--header-h)}
.brand{font-family:var(--font-serif);font-weight:600;font-size:1.2rem;letter-spacing:.24em;text-decoration:none;color:var(--text);white-space:nowrap;padding-left:.28em}
.brand:hover{color:var(--text)}
.site-nav{margin-left:auto}
.site-nav ul{list-style:none;display:flex;gap:0;align-items:center}
.site-nav a{
  display:block;position:relative;padding:.5rem .46rem;text-decoration:none;
  font-size:.84rem;color:var(--text-2);border-radius:var(--radius);white-space:nowrap;
  transition:color .18s ease;
}
.site-nav a::after{
  content:"";position:absolute;left:.46rem;right:.46rem;bottom:.22rem;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.site-nav a:hover{color:var(--text)}
.site-nav a:hover::after,.site-nav a[aria-current="page"]::after{transform:scaleX(1)}
.site-nav a[aria-current="page"]{color:var(--text)}
.site-nav .nav-cta{display:none}
.header-actions{display:flex;align-items:center;gap:.55rem;flex:none}
.header-actions .btn{white-space:nowrap;flex:none;padding:.5rem .95rem;min-height:40px;font-size:.88rem}
.theme-toggle{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line-ui);border-radius:var(--radius);color:var(--text-2);transition:border-color .18s ease,color .18s ease,transform .18s ease}
.theme-toggle:hover{color:var(--text);border-color:var(--text-2);transform:translateY(-1px)}
.theme-toggle:active{transform:scale(.96)}
/* sem JS o botão de tema não faz nada: não se desenha um controlo morto */
html:not(.js) .theme-toggle{display:none}
.theme-toggle .icon-moon{display:none}
:root[data-theme="dark"] .theme-toggle .icon-moon{display:block}
:root[data-theme="dark"] .theme-toggle .icon-sun{display:none}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-toggle .icon-moon{display:block}
  :root:not([data-theme="light"]) .theme-toggle .icon-sun{display:none}
}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-ui);border-radius:var(--radius);place-items:center;color:var(--text)}

/* ---------- botões ---------- */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.68rem 1.3rem;min-height:44px;border-radius:var(--radius);
  border:1px solid transparent;font-weight:600;font-size:.94rem;
  text-decoration:none;cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-ink);box-shadow:0 8px 22px color-mix(in srgb, var(--accent) 32%, transparent)}
.btn-primary::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 42%,rgba(255,255,255,.22) 50%,transparent 58%);
  transform:translateX(-130%);transition:transform .55s ease;
}
.btn-primary:hover::after{transform:translateX(130%)}
.btn-ghost{border-color:var(--line-ui);color:var(--text)}
.btn-ghost:hover{border-color:var(--text);color:var(--text)}
.btn-sm{padding:.4rem .85rem;min-height:38px;font-size:.86rem}
/* durante o envio o botão fica "ocupado" com aria-disabled em vez de
   disabled — assim não perde o foco de quem carregou nele. */
/* .75 punha o rótulo «A enviar…» em 4,12:1 sobre o verde esbatido no tema
   claro; .85 mantém a leitura de "ocupado" e devolve 5,27:1 (AA). */
.btn[disabled],.btn[aria-disabled="true"]{opacity:.85;cursor:progress;transform:none;box-shadow:none}
.btn[aria-disabled="true"]:hover,.btn[aria-disabled="true"]:active{transform:none;box-shadow:none}
.btn-primary[aria-disabled="true"]:hover{background:var(--accent);border-color:var(--accent)}
.btn .spinner{width:1em;height:1em;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;flex:none;animation:ak-spin .7s linear infinite}
@keyframes ak-spin{to{transform:rotate(1turn)}}

/* ---------- revelação ao rolar (gated por html.js) ---------- */
html.js .rv{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
html.js .rv.in-view{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html.js .rv{opacity:1;transform:none;transition:none}
}
@media print{
  .rv{opacity:1 !important;transform:none !important}
}

/* ---------- secções ---------- */
.section{padding-block:clamp(4rem,8vh,6.5rem)}
.section + .section{border-top:1px solid var(--line)}
/* o fleuron JÁ É o divisor: não somar um filete 100px abaixo dele */
.section:has(> .wrap > .fleuron:last-child) + .section{border-top:0}
.section-lead{color:var(--text-2);margin-top:.8rem;max-width:60ch}
.page-head{position:relative;padding-block:clamp(3.4rem,7vh,5rem) clamp(2.4rem,5vh,3.4rem);border-bottom:1px solid var(--line);overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom,transparent 0 31px,var(--line) 31px 32px);
  opacity:.45;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 92%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 92%);
}
.page-head .wrap{position:relative}
.page-head h1{font-size:clamp(2.2rem,5.2vw,3.6rem);letter-spacing:-.014em}
.page-head .sub{color:var(--text-2);font-size:1.12rem;max-width:60ch;margin-top:1.1rem}
.lead{font-size:1.15rem;color:var(--text);max-width:60ch}
.prose{max-width:var(--medida)}
/* quando .prose é o próprio .wrap, a coluna de texto alinha à margem
   esquerda da página (com o h1) em vez de flutuar ao centro */
.wrap.prose{max-width:none}
.wrap.prose > h2,.wrap.prose > h3,.wrap.prose > p,.wrap.prose > ul,.wrap.prose > ol,.wrap.prose > .fleuron{max-width:var(--medida)}
.prose p{margin-top:1rem;color:var(--text-2)}
.prose p:first-child{margin-top:0}
.prose h2{margin-top:2.8rem}
/* um h2 logo a seguir ao parágrafo de abertura respira como no .prose,
   mesmo quando o bloco precisa da coluna larga (desmaterializacao) */
.section > .wrap > .lead + h2{margin-top:2.8rem}
.prose h3{margin-top:2rem}
.prose ul,.prose ol{margin:1rem 0 0 1.2rem;color:var(--text-2);display:grid;gap:.55rem}
.prose strong{color:var(--text)}

/* ---------- hero editorial (index) ---------- */
.hero{position:relative;padding-block:clamp(4rem,10vh,6.5rem) clamp(3.4rem,8vh,5.5rem);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom,transparent 0 31px,var(--line) 31px 32px);
  opacity:.5;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 88%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 88%);
}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:clamp(2.2rem,5vw,4rem);align-items:stretch}
/* 'balance' só é aplicado pelo Chromium até 6 linhas — e a 1440px esta frase
   dá 7, deixando "guardar." órfão. 'pretty' não tem esse limite e existe
   precisamente para evitar a última linha curta. */
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem);line-height:1.05;letter-spacing:-.02em;max-width:16ch;text-wrap:pretty}
.hero h1 em{font-style:italic;color:var(--text)}
.hero .lead{margin-top:1.4rem;color:var(--text-2)}
.hero-acoes{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:2.2rem}
.hero-side{display:grid;gap:2.4rem;align-content:space-between}

/* índice de arquivo — marginália */
.marginalia{
  font-family:var(--font-ui);
  border-left:1px solid var(--line-strong);
  padding-left:1.35rem;
  display:grid;gap:.95rem;align-content:start;
}
.marginalia-t{font-size:.68rem;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--text-3)}
.marginalia a{
  display:flex;gap:.85rem;align-items:baseline;text-decoration:none;
  font-size:.78rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-2);transition:color .18s ease,transform .25s var(--ease);
}
.marginalia a .reg{font-variant-numeric:tabular-nums;font-weight:600;color:var(--accent)}
.marginalia a:hover{color:var(--text);transform:translateX(4px)}

/* arte de assinatura — folhas que se arrumam numa pilha */
.paper-stack{position:relative;height:clamp(260px,32vh,400px);max-width:none}
.sheet{
  position:absolute;inset:0;
  background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius);
  box-shadow:0 12px 30px var(--shadow-1);
  padding:1rem 1.1rem;
  display:flex;flex-direction:column;justify-content:space-between;
  transform:translate(var(--fx,0),var(--fy,0));
  transition:transform .65s var(--ease),border-color .5s ease,box-shadow .5s ease;
}
.sheet::before{
  content:"";flex:1;margin-top:1.6rem;
  background:repeating-linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 14px);
  opacity:.9;
}
.sheet .s-label{
  font-family:var(--font-ui);font-size:.62rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);
  display:flex;align-items:center;gap:.5rem;
}
.sheet .s-label .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;opacity:0;transition:opacity .4s ease}
.sheet:nth-child(1){--fx:-10px;--fy:14px;--sx:-30px;--sy:24px;--r:-3deg}
.sheet:nth-child(2){--fx:-4px;--fy:7px;--sx:28px;--sy:-8px;--r:2.4deg}
.sheet:nth-child(3){--fx:2px;--fy:0px;--sx:-20px;--sy:-20px;--r:-1.8deg}
.sheet:nth-child(4){--fx:8px;--fy:-7px;--sx:24px;--sy:16px;--r:3deg}
html.js .paper-stack:not(.stacked) .sheet{transform:translate(var(--sx),var(--sy)) rotate(var(--r))}
.paper-stack.stacked .sheet:nth-child(1){transition-delay:0ms}
.paper-stack.stacked .sheet:nth-child(2){transition-delay:80ms}
.paper-stack.stacked .sheet:nth-child(3){transition-delay:160ms}
.paper-stack.stacked .sheet:nth-child(4){transition-delay:240ms}
.sheet .s-digital{position:absolute;left:1.1rem;right:1.1rem;top:1rem;opacity:0;transition:opacity .4s ease;color:var(--accent)}
.paper-stack.digital .sheet:nth-child(4){border-color:var(--accent);box-shadow:0 16px 36px color-mix(in srgb, var(--accent) 22%, transparent)}
.paper-stack.digital .sheet:nth-child(4) .s-paper{opacity:0;transition:opacity .4s ease}
.paper-stack.digital .sheet:nth-child(4) .s-digital{opacity:1}
.paper-stack.digital .sheet:nth-child(4) .dot{opacity:1;animation:ak-pulse 2.2s ease-in-out infinite}
@keyframes ak-pulse{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent)}50%{box-shadow:0 0 0 6px transparent}}
@media (prefers-reduced-motion: reduce){
  html.js .paper-stack:not(.stacked) .sheet{transform:translate(var(--fx,0),var(--fy,0))}
}

/* ---------- grelhas ---------- */
.card-grid{display:grid;gap:1.4rem;margin-top:2.2rem}
.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.card-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.cell{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem 1.7rem;display:flex;flex-direction:column;gap:.7rem}
a.cell{text-decoration:none;color:inherit;transition:border-color .22s ease,transform .25s var(--ease),box-shadow .25s ease}
a.cell:hover{border-color:var(--accent);color:inherit;transform:translateY(-3px);box-shadow:0 16px 32px var(--shadow-1)}
a.cell:hover .cell-cta{color:var(--accent)}
a.cell:hover .cell-cta svg{transform:translateX(4px)}
.cell h3{font-size:1.12rem}
.cell p{font-size:.95rem;color:var(--text-2)}
.cell .cell-cta{font-family:var(--font-ui);margin-top:auto;padding-top:.7rem;font-size:.85rem;font-weight:600;color:var(--text-3);display:inline-flex;align-items:center;gap:.45rem}
.cell .cell-cta svg{transition:transform .25s var(--ease)}

/* estatísticas sóbrias */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.2rem}
.stat{border-top:2px solid var(--text);padding-top:1rem}
.stat-v{font-family:var(--font-serif);font-size:2.3rem;font-weight:600;font-variant-numeric:tabular-nums}
.stat-l{font-family:var(--font-ui);font-size:.88rem;color:var(--text-2);margin-top:.2rem;max-width:26ch}

/* ---------- tabelas ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;margin-top:1.6rem;background:var(--surface)}
.spec-table caption{font-family:var(--font-serif);text-align:left;font-size:1.05rem;font-weight:600;padding-bottom:.8rem;color:var(--text)}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line);padding:.8rem .95rem;text-align:left;vertical-align:top}
.spec-table thead th{
  font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-3);background:var(--surface);
  position:sticky;top:calc(var(--header-h) + var(--filtro-h));border-bottom:1px solid var(--line-strong);
  z-index:5;
}
/* dentro de .table-scroll o contentor de scroll é o próprio div: o offset
   de 66px deixa de ser medido a partir do topo da janela e empurra o
   cabeçalho para cima da PRIMEIRA linha do corpo, escondendo-a. O cabeçalho
   fixo só é pedido pela tabela de prazos, que não está em .table-scroll. */
.table-scroll .spec-table thead th{position:static;top:auto}
.spec-table tbody tr:nth-child(even){background:color-mix(in srgb, var(--surface-2) 45%, var(--surface))}
.spec-table tbody th{font-weight:600;font-family:var(--font-serif)}
.spec-table td.num{text-align:right;font-variant-numeric:tabular-nums;font-family:var(--font-ui)}
.table-note{font-family:var(--font-ui);font-size:.82rem;color:var(--text-3);margin-top:.7rem;max-width:70ch}

/* gavetas de arquivo — linhas da ferramenta de prazos */
tr.drawer>th,tr.drawer>td{transition:transform .28s var(--ease)}
tr.drawer{transition:background-color .2s ease,box-shadow .28s ease}
tr.drawer:hover{
  background:color-mix(in srgb, var(--surface-2) 80%, var(--surface)) !important;
  box-shadow:inset 3px 0 0 var(--accent),inset 0 10px 16px -14px var(--shadow-2);
}
tr.drawer:hover>th,tr.drawer:hover>td{transform:translateX(6px)}
html.js tr.drawer{animation:ak-drawer-in .5s var(--ease) both;animation-delay:calc(var(--i,0)*40ms)}
@keyframes ak-drawer-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
/* com movimento reduzido as gavetas não entram escalonadas: a animação é
   desligada de todo, como já se faz na impressão — assim a linha está
   visível sem depender de nenhum fotograma. */
@media (prefers-reduced-motion: reduce){
  html.js tr.drawer{animation:none}
}
.area-chip{
  display:inline-block;font-family:var(--font-ui);font-size:.66rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  border:1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background:color-mix(in srgb, var(--accent) 8%, transparent);
  border-radius:999px;padding:.16rem .6rem;white-space:nowrap;
}

/* barra de filtros fixa (prazos) */
.filtro-bar{
  position:sticky;top:var(--header-h);z-index:60;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  padding:.9rem 0 1.1rem;margin-top:2rem;
}
.filtro-bar h2{font-size:1.05rem}
html:not(.js) .filtro-bar{display:none}
/* controlos e frases que só fazem sentido com JS */
html:not(.js) #pz-imprimir{display:none}
html:not(.js) .so-js{display:none}
/* no telemóvel a barra presa chega a 396px de altura: somada ao cabeçalho,
   ocupava metade do ecrã durante toda a leitura da tabela */
@media (max-width: 720px){
  .filtro-bar{position:static}
}

/* tabela -> cartões em mobile */
@media (max-width: 720px){
  /* a duas linhas, o REG. deixava de partilhar a linha de base e o
     filete (flex:1) colapsava para 0 — o dispositivo desaparecia */
  .etiqueta{display:block}
  .etiqueta .reg{display:block;margin-bottom:.3rem}
  .etiqueta::after{display:block;width:64px;max-width:none;margin-top:.6rem}
  .spec-table.responsiva thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .spec-table.responsiva,.spec-table.responsiva tbody,.spec-table.responsiva tr,.spec-table.responsiva th,.spec-table.responsiva td{display:block}
  .spec-table.responsiva tr{border:1px solid var(--line);border-radius:var(--radius);margin-top:1rem;background:var(--surface);padding:.6rem .9rem}
  .spec-table.responsiva tbody tr:nth-child(even){background:var(--surface)}
  .spec-table.responsiva th,.spec-table.responsiva td{border:0;padding:.45rem 0;text-align:left}
  .spec-table.responsiva td.num{text-align:left}
  tr.drawer:hover>th,tr.drawer:hover>td{transform:none}
  .spec-table.responsiva td[data-rotulo]::before{
    content:attr(data-rotulo);display:block;
    font-family:var(--font-ui);font-size:.68rem;font-weight:600;
    letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);
    margin-bottom:.15rem;
  }
}

/* ---------- fichas de prazo (ferramenta) ---------- */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.chip{
  border:1px solid var(--line-ui);border-radius:999px;
  padding:.42rem 1rem;min-height:40px;
  font-size:.86rem;font-weight:500;color:var(--text-2);cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease,transform .18s ease;
}
.chip:hover{border-color:var(--text);color:var(--text);transform:translateY(-1px)}
.chip:active{transform:scale(.97)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.ficha{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem 1.8rem;margin-top:1.4rem;break-inside:avoid;box-shadow:0 14px 34px var(--shadow-1)}
html.js .ficha{animation:ak-drawer-in .55s var(--ease) both}
.ficha .etiqueta{margin-bottom:.8rem}
.ficha h3{font-size:1.18rem}
.ficha dl{margin-top:1rem;display:grid;gap:.85rem;font-size:.94rem}
.ficha dt{font-family:var(--font-ui);font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.ficha dd{color:var(--text-2);margin-top:.15rem;max-width:70ch}
.ficha .prazo-destaque{display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap;margin-top:.5rem}
.ficha .prazo-num{font-family:var(--font-serif);font-size:2.6rem;font-weight:600;line-height:1;color:var(--text);font-variant-numeric:tabular-nums}
.ficha .prazo-unidade{font-family:var(--font-ui);font-size:.72rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.ficha .prazo-texto{font-family:var(--font-serif);font-size:1.15rem;font-weight:600;color:var(--text);max-width:52ch}
.aviso{border:1px solid var(--line-strong);border-left:3px solid var(--accent);border-radius:var(--radius);background:var(--surface);padding:1.1rem 1.3rem;margin-top:1.6rem;font-family:var(--font-ui);font-size:.9rem;color:var(--text-2)}
.aviso p{max-width:75ch}

/* ---------- calculadora ---------- */
.calc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem;margin-top:2rem;align-items:start}
.calc-resultados{position:sticky;top:calc(var(--header-h) + 1.5rem)}
/* sem JS não há cálculo: mostrar uma coluna de traços é pior do que
   não a mostrar (a nota <noscript> explica, e as fórmulas estão abaixo) */
html:not(.js) .calc-resultados{display:none}
html:not(.js) .calc-grid{grid-template-columns:1fr}
.calc-painel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem 1.7rem}
.calc-painel h2{font-size:1.2rem;margin-bottom:1rem}
.resultado-linha{display:flex;justify-content:space-between;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--line);font-family:var(--font-ui);font-size:.94rem}
.resultado-linha:last-of-type{border-bottom:0}
.resultado-linha .v{font-variant-numeric:tabular-nums;font-weight:600;white-space:nowrap}
.resultado-total{border-top:2px solid var(--text);margin-top:.6rem;padding-top:.9rem;display:flex;justify-content:space-between;font-family:var(--font-ui);font-weight:700;font-size:1.05rem}
.resultado-total .v{font-variant-numeric:tabular-nums}
.pressuposto{font-family:var(--font-ui);font-size:.82rem;color:var(--text-3);margin-top:.3rem}

/* pilhas comparativas — papel vs digital */
.custo-viz{display:flex;gap:2.4rem;align-items:stretch;height:170px;margin-top:1.6rem;font-family:var(--font-ui)}
.cv-col{flex:1;display:flex;flex-direction:column;gap:.55rem;text-align:center;min-width:0}
.cv-bar{flex:1;position:relative;border-bottom:2px solid var(--text)}
.cv-fill{
  position:absolute;left:18%;right:18%;bottom:0;top:0;
  transform:scaleY(var(--h,0));transform-origin:bottom;
  transition:transform .65s var(--ease);
  border-radius:2px 2px 0 0;
}
.cv-papel .cv-fill{background:repeating-linear-gradient(to bottom,var(--cinza-arquivo) 0 7px,color-mix(in srgb, var(--cinza-arquivo) 45%, var(--surface)) 7px 12px)}
.cv-digital .cv-fill{background:var(--accent)}
.cv-v{font-size:.9rem;font-weight:600;font-variant-numeric:tabular-nums}
.cv-l{font-size:.68rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}

/* ---------- selo de conformidade ---------- */
.ph-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2.5rem;align-items:center}
@media (max-width: 720px){
  .ph-grid{grid-template-columns:1fr}
  .ph-grid .selo-wrap{justify-content:flex-start}
  .selo{width:140px}
}
.selo-wrap{display:flex;justify-content:center}
.selo{color:var(--accent);width:min(190px,48vw);height:auto}
.selo .ring,.selo .tick{stroke-dasharray:100;stroke-dashoffset:0}
html.js .selo .ring{stroke-dashoffset:100;transition:stroke-dashoffset 1.5s var(--ease) .15s}
html.js .selo .tick{stroke-dashoffset:100;transition:stroke-dashoffset .7s var(--ease) 1.1s}
html.js .in-view .selo .ring,html.js .selo.in-view .ring{stroke-dashoffset:0}
html.js .in-view .selo .tick,html.js .selo.in-view .tick{stroke-dashoffset:0}
@media (prefers-reduced-motion: reduce){
  html.js .selo .ring,html.js .selo .tick{stroke-dashoffset:0;transition:none}
}
/* letter-spacing curto de propósito: a legenda tem de caber no meio-arco
   (r=50 -> ~157px) senão o browser corta as letras que sobram */
.selo text{font-family:var(--font-ui);font-size:8px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;fill:currentColor}
.selo text.selo-baixo{letter-spacing:.3em}

/* ---------- passos (desmaterialização) ---------- */
.passos{counter-reset:passo;list-style:none;margin-top:2rem;display:grid;gap:0}
.passos > li{counter-increment:passo;border-top:1px solid var(--line);padding:1.9rem 0 1.9rem 4.6rem;position:relative}
.passos > li:last-child{border-bottom:1px solid var(--line)}
.passos > li::before{content:counter(passo,decimal-leading-zero) ".";position:absolute;left:0;top:1.85rem;font-family:var(--font-ui);font-size:.95rem;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.passos h3{font-size:1.15rem;margin-bottom:.5rem}
.passos p{font-size:.97rem;color:var(--text-2)}
.passos .meta-linha{font-family:var(--font-ui);font-size:.8rem;color:var(--text-3);margin-top:.7rem;letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq{margin-top:1.6rem;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.1rem 0;font-family:var(--font-serif);font-weight:600;font-size:1.05rem;display:flex;justify-content:space-between;gap:1rem;align-items:baseline;transition:color .18s ease}
.faq summary:hover{color:var(--accent)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font-ui);color:var(--text-3);flex:none}
.faq details[open] summary::after{content:"–"}
.faq .faq-a{padding:0 0 1.2rem;color:var(--text-2);font-size:.97rem}
.faq .faq-a p{max-width:70ch}

/* ---------- CTA ---------- */
.cta-band{border:1px solid var(--line-strong);border-radius:var(--radius);padding:2.6rem 2.2rem;margin-block:3.4rem;display:flex;flex-wrap:wrap;align-items:center;gap:1.5rem;justify-content:space-between;background:var(--surface)}
.cta-band h2{max-width:26ch}
.cta-band p{color:var(--text-2)}

/* ---------- formulários ---------- */
.form-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.66fr);gap:clamp(2.5rem,5vw,4.5rem);align-items:start}
.form-shell{max-width:620px}
.form-aside{position:sticky;top:calc(var(--header-h) + 2rem);border-left:1px solid var(--line-strong);padding-left:clamp(1.4rem,2.5vw,2rem)}
.form-aside .etiqueta::after{display:none}
.form-aside h2{font-size:1.32rem}
.mini-passos{list-style:none;margin-top:1.6rem;display:grid;gap:1.5rem}
.mini-passos li{display:grid;gap:.2rem}
.mp-n{font-family:var(--font-ui);font-size:.68rem;font-weight:600;letter-spacing:.2em;color:var(--accent)}
.mp-t{font-weight:600}
.mp-d{color:var(--text-2);font-size:.98rem;line-height:1.6}
.aside-nota{margin-top:2rem;padding-top:1.3rem;border-top:1px solid var(--line);font-family:var(--font-ui);font-size:.85rem;line-height:1.65;color:var(--text-3)}
.aside-nota a{color:var(--text-2)}
.field{margin-top:1.3rem;font-family:var(--font-ui)}
.field label{display:block;font-weight:600;font-size:.94rem;margin-bottom:.4rem}
.field .req{color:var(--accent)}
.field .help{font-size:.84rem;color:var(--text-3);margin-bottom:.45rem;max-width:56ch}
.field input[type="text"],.field input[type="email"],.field input[type="tel"],.field input[type="number"],.field select,.field textarea{width:100%;background:var(--surface);border:1px solid var(--line-ui);border-radius:var(--radius);color:var(--text);padding:.68rem .85rem;min-height:46px;font:inherit;font-family:var(--font-ui);transition:border-color .18s ease}
.field textarea{min-height:110px;resize:vertical}
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--erro)}
.field-error{display:none;color:var(--erro);font-size:.85rem;margin-top:.4rem}
.field.invalid .field-error{display:block}
.hp-wrap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.check-field{display:flex;gap:.7rem;align-items:flex-start;margin-top:1.2rem;font-family:var(--font-ui)}
.check-field input{width:1.1rem;height:1.1rem;margin-top:.25rem;accent-color:var(--accent);flex:none}
.check-field label{font-size:.9rem;color:var(--text-2)}
.error-summary{display:none;border:1px solid var(--erro);border-radius:var(--radius);padding:1rem 1.2rem;margin-top:1.5rem;color:var(--erro);font-family:var(--font-ui);font-size:.92rem}
.error-summary.visible{display:block}
.error-summary ul{margin:.5rem 0 0 1.1rem}
.error-summary a{color:inherit}
.form-confirm{border:1px solid var(--line-strong);border-left:3px solid var(--accent);border-radius:var(--radius);padding:2.2rem 2rem;background:var(--surface);box-shadow:0 16px 36px var(--shadow-1)}
html.js .form-confirm:not([hidden]){animation:ak-confirm-in .6s var(--ease) both}
@keyframes ak-confirm-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.form-confirm .selo-ok{width:48px;height:48px;border-radius:50%;border:1.5px solid var(--accent);display:grid;place-items:center;color:var(--accent);margin-bottom:1.1rem}
.form-aviso-envio{font-family:var(--font-ui);font-size:.9rem;color:var(--erro);margin-top:1rem}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding-block:3rem 2rem;margin-top:4rem;font-size:.92rem;color:var(--text-2)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.site-footer h3{font-family:var(--font-ui);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--text-3);margin-bottom:.8rem}
.site-footer ul{list-style:none;display:grid;gap:.45rem;font-family:var(--font-ui);font-size:.88rem}
.site-footer a{text-decoration:none;color:var(--text-2)}
.site-footer a:hover{color:var(--text)}
.footer-legal{margin-top:2.5rem;padding-top:1.4rem;border-top:1px solid var(--line);font-family:var(--font-ui);font-size:.8rem;color:var(--text-3);display:grid;gap:.4rem}
.footer-legal a{color:inherit;text-decoration:underline}
.footer-brand p{max-width:34ch;margin-top:.8rem;font-size:.95rem}

/* ---------- responsivo ---------- */
@media (max-width: 960px){
  .calc-grid{grid-template-columns:1fr}
  .calc-resultados{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero .wrap{grid-template-columns:1fr}
  .hero-side{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;align-content:start;gap:2rem;margin-top:1rem}
  .paper-stack{height:190px;max-width:none}
}
/* O cabeçalho passa a menu bem antes do resto do layout: com os tipos de
   letra de recurso (offline, CSP, ou a janela do display=swap) a nav larga
   e cortava o CTA — e produzia scroll horizontal — até aos ~1250px. */
@media (max-width: 1280px){
  /* o colapso só vale com JS: quem abre o menu é o main.js. Sem ele, o
     display:none deixava as 9 ligações inalcançáveis (standard: sem JS o
     site lê-se e funciona; esconder-até-revelar só sob html.js). */
  html.js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);margin-left:0;padding:.8rem 1.25rem 1.2rem;box-shadow:0 18px 30px var(--shadow-1)}
  html.js .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;align-items:stretch;gap:.15rem}
  .site-nav a{padding:.8rem .65rem;font-size:1rem}
  .site-nav a::after{display:none}
  .site-nav a[aria-current="page"]{color:var(--accent)}
  .nav-toggle{display:grid;margin-left:auto}
  .header-actions .btn{display:none}
  /* o botão do cabeçalho desaparece: o caminho para a conversão passa
     a viver dentro do menu, senão o telemóvel fica sem nenhum */
  .site-nav .nav-cta{display:block;margin-top:.55rem;padding-top:.55rem;border-top:1px solid var(--line)}
  .site-nav .nav-cta a{color:var(--accent);font-weight:600}
  /* sem JS: o hamburger é inerte, some-se; a nav flui empilhada por baixo
     do cabeçalho, em linhas que quebram, sempre visível e navegável. */
  html:not(.js) .nav-toggle{display:none}
  html:not(.js) .site-header .wrap{flex-wrap:wrap;padding-bottom:.5rem}
  html:not(.js) .site-nav{order:3;width:100%;margin-left:0;border-top:1px solid var(--line);padding-top:.4rem}
  html:not(.js) .site-nav ul{flex-direction:row;flex-wrap:wrap;align-items:center;gap:0 .2rem}
  html:not(.js) .site-nav a{padding:.45rem .4rem;font-size:.86rem}
  html:not(.js) .site-nav .nav-cta{margin-top:0;padding-top:0;border-top:0;margin-left:auto}
}
@media (max-width: 1120px){
  .form-layout{grid-template-columns:1fr;gap:3rem}
  .form-aside{position:static;border-left:0;border-top:1px solid var(--line-strong);padding-left:0;padding-top:2rem;max-width:620px}
  /* a 1120px um cartão único media 1080px para um parágrafo de 524px:
     metade da largura ficava vazia. Duas colunas até ~700px. */
  .card-grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .card-grid.cols-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding-block:3.2rem}
  .cta-band{padding:1.9rem 1.5rem}
  .passos > li{padding-left:3.4rem}
  .spec-table thead th{position:static}
}
@media (max-width: 700px){
  .card-grid.cols-3{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
}
@media (max-width: 620px){
  .hero-side{grid-template-columns:1fr;gap:2.2rem}
  .paper-stack{height:170px}
  .dropcap::first-letter{font-size:2.6em}
  .custo-viz{gap:1.4rem}
}

/* ---------- impressão (lista de prazos) ---------- */
@media print{
  :root{--bg:#fff;--surface:#fff;--surface-2:#f4f4f4;--line:#999;--line-strong:#666;--line-ui:#555;--text:#000;--text-2:#222;--text-3:#555;--accent:#2F5D3A}
  body{background:#fff;color:#000;font-size:10.5pt}
  .site-header,.site-footer,.cta-band,.skip-link,.theme-toggle,.nav-toggle,.btn,.chips,.nao-imprimir,.filtro-bar{display:none !important}
  .ficha{border-color:#999;page-break-inside:avoid;box-shadow:none}
  a{text-decoration:none;color:#000}
  .print-only{display:block !important}
  tr.drawer{animation:none !important}
}
.print-only{display:none}