/* ════════════════════════════════════════════════════════════════
   SUSTAINABLE PRIORITY — sistema visual

   Paleta da marca:
     #F4F5EF  branco quente      #16362D  verde profundo
     #E8EEE3  verde névoa        #38534A  verde secundário
     #B9C8B4  verde sálvia       #FFFFFF  branco
     #DCE867  lima suave — foco

   Escuro por omissão, sobre o verde profundo. O lima é cor de foco:
   aparece em preenchimentos (botões, barras, estados ativos) e no que
   exige decisão, nunca como decoração. Mono para os códigos e prazos
   dos avisos — o vocabulário próprio deste negócio.
   ════════════════════════════════════════════════════════════════ */

:root{
  --bg:#16362D;             /* verde profundo */
  --bg-2:#1B4038;           /* banda elevada, derivada do profundo */
  --surface:#1E463C;        /* cartões */
  --surface-2:#38534A;      /* verde secundário */
  --fg:#F4F5EF;             /* branco quente */
  --fg-soft:#B9C8B4;        /* verde sálvia */
  --fg-dim:#A0B59C;         /* sálvia dessaturado, derivado */
  --line:rgba(244,245,239,.13);
  --line-2:rgba(244,245,239,.26);
  --accent:#DCE867;         /* lima suave */
  --accent-soft:rgba(220,232,103,.14);
  --accent-line:rgba(220,232,103,.42);
  --lime:#DCE867;           /* preenchimentos: igual nos dois temas */
  --on-lime:#16362D;        /* texto sobre lima */
  --danger:#E9A392;
  --ok:#B9C8B4;

  --f-display:'Manrope',ui-sans-serif,system-ui,'Segoe UI',sans-serif;
  --f-body:'DM Sans',ui-sans-serif,system-ui,'Segoe UI',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;
  --f-accent:Georgia,'Times New Roman',serif;

  --gut:clamp(20px,5vw,64px);
  --wrap:1280px;
  --r:4px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);

  color-scheme:dark;
}

/* O lima puro não tem contraste sobre o branco quente, por isso o texto e
   as linhas de ênfase usam-no escurecido; o lima cheio fica para os
   preenchimentos, onde carrega texto verde profundo por cima. */
@media (prefers-color-scheme:light){
  :root:not([data-theme="dark"]){
    --bg:#F4F5EF; --bg-2:#E8EEE3; --surface:#FFFFFF; --surface-2:#E8EEE3;
    --fg:#16362D; --fg-soft:#38534A; --fg-dim:#556D60;
    --line:rgba(22,54,45,.15); --line-2:rgba(22,54,45,.28);
    --accent:#5C6B14; --accent-soft:rgba(92,107,20,.12); --accent-line:rgba(92,107,20,.4);
    --lime:#DCE867; --on-lime:#16362D; --danger:#8C2F22; --ok:#38534A;
    color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#F4F5EF; --bg-2:#E8EEE3; --surface:#FFFFFF; --surface-2:#E8EEE3;
  --fg:#16362D; --fg-soft:#38534A; --fg-dim:#556D60;
  --line:rgba(22,54,45,.15); --line-2:rgba(22,54,45,.28);
  --accent:#5C6B14; --accent-soft:rgba(92,107,20,.12); --accent-line:rgba(92,107,20,.4);
  --lime:#DCE867; --on-lime:#16362D; --danger:#8C2F22; --ok:#38534A;
  color-scheme:light;
}

/* ── fontes ──────────────────────────────────────────────────── */
@font-face{font-family:'Manrope';src:url('/assets/fonts/manrope-var.woff2') format('woff2');
  font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:'DM Sans';src:url('/assets/fonts/dm-sans-var.woff2') format('woff2');
  font-weight:100 1000;font-style:normal;font-display:swap}
@font-face{font-family:'DM Sans';src:url('/assets/fonts/dm-sans-var-italic.woff2') format('woff2');
  font-weight:100 1000;font-style:italic;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('/assets/fonts/jetbrains-mono-var.woff2') format('woff2');
  font-weight:100 800;font-style:normal;font-display:swap}

/* ── base ────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:168px}
/**
 * Em ecrã largo sobra cor lisa dos dois lados da coluna de conteúdo — num
 * monitor de 2255 px são quase 500 px de cada lado. Estas faixas enchem essa
 * margem com um degradê que esbate para o fundo ao aproximar-se do texto.
 *
 * A largura é calculada, não adivinhada: quando o ecrã é mais estreito do
 * que a coluna, `max()` devolve zero e o degradê desaparece sozinho, sem
 * precisar de media query.
 */
body{
  --margem:max(0px,(100vw - var(--wrap)) / 2);
  margin:0;color:var(--fg);
  background-color:var(--bg);
  background-image:linear-gradient(to right,
    var(--bg-2) 0,
    transparent var(--margem),
    transparent calc(100% - var(--margem)),
    var(--bg-2) 100%);
  background-attachment:fixed;
  font-family:var(--f-body);font-size:clamp(15px,.4vw + 14px,17px);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
img{height:auto}
p{margin:0}
a{color:inherit}
ul,ol,dl,dd{margin:0;padding:0}
li{list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--f-display);font-weight:600;
  line-height:1.04;letter-spacing:-.032em;text-wrap:balance}
button{font:inherit;color:inherit}

:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:-9999px;top:0;z-index:100;background:var(--lime);
  color:var(--on-lime);padding:14px 22px;text-decoration:none;font-weight:700}
.skip:focus{left:12px;top:12px}

/* ── estrutura ───────────────────────────────────────────────── */
.wrap{max-width:var(--wrap);margin-inline:auto;
  padding-left:max(var(--gut),env(safe-area-inset-left,0px));
  padding-right:max(var(--gut),env(safe-area-inset-right,0px))}
.sec{padding-block:clamp(72px,10vw,150px);position:relative}
.sec--tight{padding-block:clamp(52px,7vw,96px)}
.sec + .sec{border-top:1px solid var(--line)}
.sec--raised{background:var(--bg-2)}

/* ── tipografia ──────────────────────────────────────────────── */
/* Inline, e não flex: assim o texto quebra como texto em vez de cada
   palavra virar um item próprio e saltar para o fim da linha no telemóvel. */
.kicker{font-family:var(--f-mono);font-size:.7rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;line-height:1.7;color:var(--fg-dim);
  margin-bottom:clamp(20px,2.4vw,32px)}
.kicker::before{content:"";display:inline-block;width:clamp(24px,4vw,56px);height:1px;
  background:var(--accent);vertical-align:middle;margin-right:14px}
.kicker em{font-style:normal;color:var(--accent)}

.t-xl{font-size:clamp(2.6rem,7.4vw,6rem);letter-spacing:-.045em;line-height:.98}
.t-lg{font-size:clamp(2.1rem,4.6vw,3.9rem);letter-spacing:-.038em}
.t-md{font-size:clamp(1.5rem,2.6vw,2.3rem);letter-spacing:-.028em}
.t-sm{font-size:clamp(1.15rem,1.5vw,1.4rem);letter-spacing:-.018em}
.serif{font-family:var(--f-accent);font-style:italic;font-weight:400;
  color:var(--accent);letter-spacing:-.012em}
.lede{max-width:52ch;color:var(--fg-soft);font-size:clamp(1.02rem,.6vw + .9rem,1.22rem);
  line-height:1.6}
.body-soft{color:var(--fg-soft)}
.measure{max-width:64ch}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}

/* ── botões ──────────────────────────────────────────────────── */
.btn{position:relative;display:inline-flex;align-items:center;gap:14px;
  font-family:var(--f-display);font-weight:700;font-size:.9rem;letter-spacing:-.005em;
  text-decoration:none;padding:16px 28px;border:1px solid var(--lime);border-radius:var(--r);
  background:var(--lime);color:var(--on-lime);cursor:pointer;overflow:hidden;
  transition:transform .4s var(--ease-out),box-shadow .4s var(--ease-out)}
.btn span{position:relative;z-index:1;display:inline-flex;align-items:center;gap:12px}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -12px var(--accent-line)}
.btn--ghost{background:transparent;color:var(--fg);border-color:var(--line-2)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);box-shadow:none}
.btn--sm{padding:11px 20px;font-size:.82rem}
.btn--block{width:100%;justify-content:center}

/* ligação com sublinhado que se escreve */
.ul{position:relative;display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;font-family:var(--f-display);font-weight:600;font-size:.92rem;
  color:var(--fg);padding-bottom:4px}
.ul::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .45s var(--ease-out)}
.ul:hover::after{transform:scaleX(1)}
.ul:hover{color:var(--accent)}

/* ── etiquetas e dados ───────────────────────────────────────── */
.tag{display:inline-flex;align-items:center;gap:7px;font-family:var(--f-mono);
  font-size:.66rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  padding:5px 11px;border:1px solid var(--line-2);border-radius:100px;color:var(--fg-soft)}
.tag--accent{color:var(--accent);border-color:var(--accent-line);background:var(--accent-soft)}

/* ── barra de topo ───────────────────────────────────────────── */
.top{position:fixed;inset:env(safe-area-inset-top,0px) 0 auto 0;z-index:50;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s}
.top::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:var(--line);
  opacity:0;transition:opacity .4s var(--ease)}
.top.is-stuck{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px) saturate(1.4)}
.top.is-stuck::after{opacity:1}
.top__in{display:flex;align-items:center;gap:clamp(16px,3vw,40px);padding-block:16px}
/* O símbolo e a assinatura crescem juntos, para a marca não desequilibrar.
   O clamp recua em ecrã estreito, onde divide a barra com o botão do menu. */
.logo{display:flex;align-items:center;gap:clamp(16px,1.4vw,22px);text-decoration:none;flex:none}
.logo svg{width:clamp(88px,8.4vw,120px);height:clamp(88px,8.4vw,120px);flex:none;color:var(--accent)}
.logo b{font-family:var(--f-display);font-weight:800;
  font-size:clamp(1.5rem,1.1vw + 1.2rem,2rem);line-height:1.08;
  letter-spacing:-.03em;display:block}
.logo b i{font-style:normal;color:var(--accent)}
.nav{display:flex;align-items:center;gap:clamp(14px,2vw,30px);margin-left:auto}
.nav a{position:relative;text-decoration:none;font-family:var(--f-display);
  font-size:.86rem;font-weight:500;color:var(--fg-soft);padding:6px 0;
  transition:color .3s var(--ease)}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .4s var(--ease-out)}
.nav a:hover{color:var(--fg)}
.nav a:hover::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--fg)}
.nav a[aria-current="page"]::after{transform:scaleX(1)}
.top__cta{margin-left:clamp(8px,1.6vw,20px)}
.burger{display:none;width:44px;height:44px;flex:none;align-items:center;justify-content:center;
  background:none;border:1px solid var(--line-2);border-radius:var(--r);cursor:pointer;margin-left:auto}
.burger span{display:block;width:18px;height:1.5px;background:var(--fg);position:relative;
  transition:background .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;
  background:var(--fg);transition:transform .35s var(--ease-out)}
.burger span::before{transform:translateY(-6px)}
.burger span::after{transform:translateY(6px)}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{transform:rotate(-45deg)}

.drawer{position:fixed;inset:0;z-index:49;background:var(--bg);
  display:flex;flex-direction:column;justify-content:center;gap:4px;
  padding-left:max(var(--gut),env(safe-area-inset-left,0px));
  padding-right:max(var(--gut),env(safe-area-inset-right,0px))}
.drawer a{font-family:var(--f-display);font-size:clamp(1.8rem,8vw,2.6rem);font-weight:700;
  letter-spacing:-.035em;text-decoration:none;padding:10px 0;color:var(--fg);
  border-bottom:1px solid var(--line)}
.drawer a:last-child{color:var(--accent);border-bottom:0}

/* ── rodapé ──────────────────────────────────────────────────── */
.foot{background:var(--bg-2);border-top:1px solid var(--line)}
.foot__top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(28px,4vw,56px);
  padding-block:clamp(48px,6vw,80px)}
.foot h4{font-family:var(--f-mono);font-size:.68rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:var(--fg-dim);margin-bottom:18px}
.foot__mark{display:flex;flex-direction:column;gap:16px;min-width:0}
.foot__claim{font-family:var(--f-display);font-size:clamp(1.2rem,1.8vw,1.55rem);
  font-weight:600;letter-spacing:-.025em;line-height:1.2;max-width:22ch}
.foot ul{display:flex;flex-direction:column;gap:10px}
.foot ul a{text-decoration:none;font-size:.92rem;color:var(--fg-soft);
  transition:color .3s var(--ease)}
.foot ul a:hover{color:var(--accent)}
.foot__bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px;
  padding-block:22px;border-top:1px solid var(--line);
  font-family:var(--f-mono);font-size:.7rem;color:var(--fg-dim);letter-spacing:.06em}
.foot__bar button{background:none;border:0;cursor:pointer;color:inherit;font:inherit;
  text-decoration:underline;text-underline-offset:3px}
.foot__bar .sep{margin-left:auto}

/* ── seletor de tema ─────────────────────────────────────────── */
.tema{display:inline-flex;align-items:center;gap:2px;flex:none}
.tema__rotulo{margin-right:8px;color:var(--fg-dim)}
.tema button{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.08em;
  background:none;border:1px solid var(--line);color:var(--fg-dim);
  padding:6px 11px;cursor:pointer;transition:color .3s var(--ease),
  border-color .3s var(--ease),background .3s var(--ease)}
.tema button + button{margin-left:-1px}
.tema button:first-of-type{border-radius:100px 0 0 100px}
.tema button:last-of-type{border-radius:0 100px 100px 0}
.tema button:hover{color:var(--fg);border-color:var(--line-2)}
/* O estado ativo não se marca só pela cor: o fundo cheio lê-se sem ela. */
.tema button[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);
  color:var(--on-lime);position:relative;z-index:1}

/* ── cartões ─────────────────────────────────────────────────── */
.grid{display:grid;gap:clamp(16px,1.8vw,24px)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}

.card{position:relative;display:flex;flex-direction:column;gap:14px;min-width:0;
  padding:clamp(24px,2.6vw,34px);background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  transition:border-color .45s var(--ease),transform .45s var(--ease-out)}
.card::before{content:"";position:absolute;inset:0 auto 0 0;width:2px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .5s var(--ease-out)}
.card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.card:hover::before{transform:scaleY(1)}
.card__n{font-family:var(--f-mono);font-size:.72rem;font-weight:500;letter-spacing:.16em;
  color:var(--accent)}
.card ul{display:flex;flex-direction:column;gap:9px;margin-top:4px}
.card ul li{position:relative;padding-left:18px;font-size:.9rem;color:var(--fg-soft)}
.card ul li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:1px;
  background:var(--accent)}
.card .ul{margin-top:auto;padding-top:12px}

/* ── formulário ──────────────────────────────────────────────── */
.form{display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.field label{font-family:var(--f-mono);font-size:.68rem;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fg-dim)}
.field label b{color:var(--accent);font-weight:500}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:1rem;color:var(--fg);background:transparent;
  border:0;border-bottom:1px solid var(--line-2);border-radius:0;padding:10px 0;
  transition:border-color .35s var(--ease)}
.field textarea{resize:vertical;min-height:100px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-bottom-color:var(--accent)}
.field select{appearance:none;cursor:pointer;padding-right:28px;
  background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),
                   linear-gradient(135deg,currentColor 50%,transparent 50%);
  background-position:calc(100% - 13px) calc(50% + 1px),calc(100% - 8px) calc(50% + 1px);
  background-size:5px 5px;background-repeat:no-repeat;color:var(--fg)}
.field select option{background:var(--surface);color:var(--fg)}
.field .err{font-size:.8rem;color:var(--danger);font-family:var(--f-body);
  letter-spacing:0;text-transform:none}
[aria-invalid="true"]{border-bottom-color:var(--danger)!important}
.trap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__status{font-family:var(--f-mono);font-size:.82rem;min-height:1.3em;letter-spacing:.02em}
.form__status[data-s="ok"]{color:var(--ok)}
.form__status[data-s="erro"]{color:var(--danger)}

/* ── modal ───────────────────────────────────────────────────── */
.modal{border:0;padding:0;max-width:640px;width:calc(100% - 32px);color:var(--fg);
  background:var(--surface);border-radius:var(--r);box-shadow:0 40px 90px -30px rgba(0,0,0,.6)}
.modal::backdrop{background:rgba(9,26,21,.74);backdrop-filter:blur(3px)}
.modal__in{display:flex;flex-direction:column;gap:14px;padding:clamp(26px,4vw,40px)}
.modal__x{position:absolute;top:16px;right:16px;width:36px;height:36px;background:none;
  border:1px solid var(--line-2);border-radius:var(--r);cursor:pointer;font-size:1.2rem;line-height:1}
.modal h4{font-family:var(--f-display);font-size:1rem;margin-top:10px}
.modal p{font-size:.94rem;color:var(--fg-soft)}
.modal a{color:var(--accent)}

/* ── responsivo ──────────────────────────────────────────────── */
@media (max-width:1040px){
  .grid--3{grid-template-columns:1fr 1fr}
  .foot__top{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav,.top__cta{display:none}
  .burger{display:flex}
  html{scroll-padding-top:120px}
}
@media (max-width:680px){
  .grid--3,.grid--2{grid-template-columns:1fr}
  .foot__top{grid-template-columns:1fr}
  .foot__bar .sep{margin-left:0;width:100%}
}