:root{
    --azul:#0B2545; --azul-2:#13335C; --azul-3:#1C4475;
    --amarelo:#FDB913; --amarelo-2:#E9A800; --laranja:#EE661F;
    --texto:#1A2433; --suave:#5B6676; --fundo:#F5F7FA; --branco:#fff; --linha:#E3E8EF;
    --raio:14px; --max:1140px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--texto);background:var(--branco);line-height:1.6;font-size:17px}
  img{max-width:100%;display:block}
  a{color:inherit}
  .wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
  h1,h2,h3{line-height:1.15;font-weight:800;letter-spacing:-.01em}
  .eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--amarelo-2);margin-bottom:12px}
  .btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font-weight:700;text-decoration:none;transition:transform .15s,background .15s;border:2px solid transparent}
  .btn:hover{transform:translateY(-2px)}
  .btn-amarelo{background:var(--amarelo);color:var(--azul)}
  .btn-amarelo:hover{background:#ffc93d}
  .btn-contorno{border-color:rgba(255,255,255,.45);color:#fff}
  .btn-contorno:hover{border-color:#fff}
  .btn-azul{background:var(--azul);color:#fff}
  .btn-azul:hover{background:var(--azul-3)}
  svg.i{width:20px;height:20px;flex:none}

  /* Cabeçalho */
  header{position:sticky;top:0;z-index:50;background:rgba(11,37,69,.97);backdrop-filter:blur(6px)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:70px}
  .marca{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
  .marca img{height:46px;width:auto}
  .menu{display:flex;gap:28px;align-items:center;list-style:none}
  .menu a{color:#D8E1EC;text-decoration:none;font-weight:500;font-size:.95rem}
  .menu a:hover{color:#fff}
  .menu .btn{padding:10px 18px;font-size:.9rem;color:var(--azul)}
  .burger{display:none;background:none;border:0;color:#fff;cursor:pointer;padding:8px}
  @media (max-width:860px){
    .burger{display:block}
    .menu{position:absolute;top:70px;left:0;right:0;background:var(--azul);flex-direction:column;gap:0;padding:8px 20px 20px;display:none}
    .menu.aberto{display:flex}
    .menu li{width:100%}
    .menu a{display:block;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}
    .menu .btn{margin-top:12px;justify-content:center;border:0}
  }

  /* Hero */
  .hero{background:radial-gradient(1200px 500px at 85% -10%,var(--azul-3),transparent 60%),var(--azul);color:#fff;position:relative;overflow:hidden}
  .hero::after{content:"";position:absolute;right:-120px;bottom:-160px;width:520px;height:520px;background:url(img/icone-dtec.png) center/contain no-repeat;opacity:.07;pointer-events:none}
  .hero .wrap{padding-top:88px;padding-bottom:96px;position:relative;z-index:1}
  .hero h1{font-size:clamp(2.1rem,5.2vw,3.6rem);max-width:760px}
  .hero h1 em{font-style:normal;color:var(--amarelo)}
  .hero p.lead{font-size:1.15rem;color:#C9D5E4;max-width:600px;margin:20px 0 34px}
  .hero .acoes{display:flex;flex-wrap:wrap;gap:14px}
  .selos{display:flex;flex-wrap:wrap;gap:26px;margin-top:52px;color:#C9D5E4;font-size:.95rem}
  .selos div{display:flex;align-items:center;gap:10px}
  .selos svg{color:var(--amarelo)}

  /* Secções */
  section{padding:90px 0}
  .titulo{max-width:680px;margin-bottom:48px}
  .titulo h2{font-size:clamp(1.8rem,3.6vw,2.5rem);color:var(--azul)}
  .titulo p{color:var(--suave);margin-top:14px;font-size:1.05rem}
  .centro{text-align:center;margin-left:auto;margin-right:auto}

  /* Áreas */
  #areas{background:var(--fundo)}
  .areas{display:grid;grid-template-columns:1fr 1fr;gap:28px}
  @media (max-width:860px){.areas{grid-template-columns:1fr}}
  .area{background:#fff;border-radius:20px;overflow:hidden;border:1px solid var(--linha);display:flex;flex-direction:column;box-shadow:0 10px 30px -18px rgba(11,37,69,.35)}
  .area-topo{padding:30px 32px;min-height:150px;display:flex;align-items:center}
  .area-casa .area-topo{background:#fff;border-bottom:4px solid var(--amarelo)}
  .area-casa .area-topo img{width:260px;height:auto}
  .area-ind .area-topo{background:#fff;border-bottom:4px solid var(--laranja)}
  .area-ind .area-topo img{width:260px;height:auto}
  .area-ind .lista svg{color:var(--laranja)}
  .area-ind .btn-azul:hover{background:var(--laranja)}
  .area-corpo{padding:30px 32px 34px;display:flex;flex-direction:column;flex:1}
  .area-corpo h3{font-size:1.4rem;color:var(--azul);margin-bottom:8px}
  .area-corpo > p{color:var(--suave);margin-bottom:22px}
  .lista{list-style:none;display:grid;gap:12px;margin-bottom:28px}
  .lista li{display:flex;gap:12px;align-items:flex-start}
  .lista svg{color:var(--amarelo-2);margin-top:3px}
  .area-corpo .btn{align-self:flex-start;margin-top:auto}

  /* Vantagens */
  .vantagens{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  @media (max-width:960px){.vantagens{grid-template-columns:1fr 1fr}}
  @media (max-width:540px){.vantagens{grid-template-columns:1fr}}
  .vantagem{padding:28px;border:1px solid var(--linha);border-radius:var(--raio)}
  .vantagem .ic{width:50px;height:50px;border-radius:12px;background:var(--azul);color:var(--amarelo);display:grid;place-items:center;margin-bottom:18px}
  .vantagem .ic svg{width:24px;height:24px}
  .vantagem h3{font-size:1.1rem;color:var(--azul);margin-bottom:8px}
  .vantagem p{color:var(--suave);font-size:.97rem}

  /* Processo */
  #processo{background:var(--azul);color:#fff}
  #processo .titulo h2{color:#fff}
  #processo .titulo p{color:#C9D5E4}
  .passos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:p}
  @media (max-width:860px){.passos{grid-template-columns:1fr}}
  .passo{background:var(--azul-2);border-radius:var(--raio);padding:30px;position:relative}
  .passo::before{counter-increment:p;content:"0" counter(p);font-size:2.4rem;font-weight:800;color:var(--amarelo);display:block;margin-bottom:10px;line-height:1}
  .passo h3{font-size:1.15rem;margin-bottom:8px}
  .passo p{color:#C9D5E4;font-size:.97rem}

  /* Contactos */
  .contactos{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:stretch}
  @media (max-width:860px){.contactos{grid-template-columns:1fr}}
  .cartoes{display:grid;gap:14px}
  .cartao{display:flex;gap:16px;align-items:center;padding:20px 22px;border:1px solid var(--linha);border-radius:var(--raio);text-decoration:none;transition:border-color .15s,box-shadow .15s}
  a.cartao:hover{border-color:var(--amarelo);box-shadow:0 8px 24px -16px rgba(11,37,69,.5)}
  .cartao .ic{width:46px;height:46px;border-radius:50%;background:var(--fundo);color:var(--azul);display:grid;place-items:center;flex:none}
  .cartao small{display:block;color:var(--suave);font-size:.85rem}
  .cartao strong{color:var(--azul);font-size:1.05rem}
  .mapa{border-radius:var(--raio);overflow:hidden;min-height:340px;border:1px solid var(--linha);background:var(--fundo)}
  .mapa iframe{width:100%;height:100%;min-height:340px;border:0;display:block}

  /* Rodapé */
  footer{background:#071A33;color:#9FB0C6;padding:48px 0 30px;font-size:.93rem}
  .rod{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px;align-items:flex-start}
  .rod img{width:200px;height:auto;margin-bottom:12px}
  .rod nav{display:flex;flex-wrap:wrap;gap:22px}
  .rod nav a{text-decoration:none}
  .rod nav a:hover{color:#fff}
  .legal{border-top:1px solid rgba(255,255,255,.08);margin-top:34px;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.85rem}
  .legal a{color:#9FB0C6}

  /* WhatsApp flutuante */
  .wa{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px -8px rgba(0,0,0,.4);z-index:60;transition:transform .15s}
  .wa:hover{transform:scale(1.07)}
  .wa svg{width:30px;height:30px}

  :focus-visible{outline:3px solid var(--amarelo);outline-offset:3px}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.wa{transition:none}}

  /* Submenu "Porquê a DTEC" */
  [id]{scroll-margin-top:84px}
  .tem-sub{position:relative}
  .tem-sub > a::after{content:"";display:inline-block;width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin:0 0 3px 8px}
  .submenu{list-style:none;position:absolute;top:100%;left:-16px;min-width:210px;background:#fff;border-radius:12px;padding:8px;box-shadow:0 18px 40px -16px rgba(11,37,69,.45);opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .15s,transform .15s}
  .tem-sub::before{content:"";position:absolute;left:0;right:0;top:100%;height:14px}
  .tem-sub:hover .submenu,.tem-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(10px)}
  .submenu a{display:block;padding:10px 14px;border-radius:8px;color:var(--azul)!important;font-weight:600}
  .submenu a:hover{background:var(--fundo)}
  @media (max-width:860px){
    .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:none;padding:0 0 0 16px;min-width:0}
    .submenu a{color:#C9D5E4!important;font-weight:500;padding:10px 0;border-radius:0}
    .submenu a:hover{background:none}
    .tem-sub > a::after{display:none}
  }

  /* Apresentação */
  .apresentacao{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start;margin-bottom:56px}
  .apresentacao .titulo{margin-bottom:0}
  .apres-texto p{color:var(--suave);font-size:1.06rem;margin-bottom:14px}
  @media (max-width:860px){.apresentacao{grid-template-columns:1fr;gap:20px}}

  /* Blog */
  .pag-topo{background:var(--azul);color:#fff;padding:72px 0 64px}
  .pag-topo h1{font-size:clamp(2rem,4.6vw,3rem)}
  .pag-topo p{color:#C9D5E4;margin-top:14px;max-width:620px;font-size:1.08rem}
  .artigos{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
  @media (max-width:960px){.artigos{grid-template-columns:1fr 1fr}}
  @media (max-width:600px){.artigos{grid-template-columns:1fr}}
  .artigo-card{border:1px solid var(--linha);border-radius:16px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;background:#fff;transition:box-shadow .15s,transform .15s}
  .artigo-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -18px rgba(11,37,69,.5)}
  .artigo-capa{aspect-ratio:16/9;display:grid;place-items:center;background:var(--azul)}
  .artigo-capa img{width:70px;height:70px;opacity:.9}
  .artigo-capa.casa{background:linear-gradient(135deg,var(--azul),var(--azul-3))}
  .artigo-capa.ind{background:linear-gradient(135deg,var(--azul),#3a2a2a)}
  .artigo-info{padding:22px 24px 26px}
  .tag{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:#FFF4D6;color:#8A6200;margin-bottom:12px}
  .tag.ind{background:#FDE7DB;color:#A8440F}
  .artigo-info h2{font-size:1.2rem;color:var(--azul);margin-bottom:8px}
  .artigo-info p{color:var(--suave);font-size:.95rem}
  .artigo-info time{display:block;color:var(--suave);font-size:.85rem;margin-top:14px}
  .artigo{max-width:760px;margin:0 auto}
  .artigo h2{font-size:1.5rem;color:var(--azul);margin:34px 0 12px}
  .artigo p,.artigo li{color:#3A4656;font-size:1.06rem;margin-bottom:14px}
  .artigo ul{padding-left:22px}
  .voltar{display:inline-flex;align-items:center;gap:8px;color:var(--azul);font-weight:700;text-decoration:none;margin-bottom:24px}
  .caixa-cta{margin-top:44px;background:var(--fundo);border-left:4px solid var(--amarelo);border-radius:12px;padding:26px 28px}
  .caixa-cta h3{color:var(--azul);margin-bottom:8px}
  .caixa-cta p{margin-bottom:18px}
  .marca img{height:50px}
  .artigo-capa.ind{background:linear-gradient(135deg,var(--azul),#6E2E0E)}
  @media (max-width:860px){.menu .btn{display:flex;justify-content:center}}