/* ==========================================================================
   Arch Constroi – Engenharia e Construção Civil
   Folha de estilo principal | Preto · Vermelho · Branco
   Desenvolvido por: Tech J Innovative Solutions
   ========================================================================== */

:root{
  --preto:#0b0b0d;
  --preto-2:#121216;
  --preto-3:#1a1a20;
  --vermelho:#d32027;
  --vermelho-2:#ff3b41;
  --branco:#ffffff;
  --cinza:#9aa0a6;
  --cinza-claro:#e9ebee;
  --linha:rgba(255,255,255,.09);
  --sombra:0 18px 45px rgba(0,0,0,.45);
  --radius:14px;
  --max:1200px;
  --fundo:var(--preto);
  --texto:#f2f3f5;
  --card:rgba(255,255,255,.045);
  --ceu:linear-gradient(180deg,#0b0b0d,#141419);
}

/* Clima/hora do dia – ajusta a temperatura de cor do site */
html[data-tema="manha"]{ --ceu:linear-gradient(180deg,#101014,#1b1710); --vermelho-2:#ff6a3d; }
html[data-tema="dia"]  { --ceu:linear-gradient(180deg,#0e0e12,#16161c); }
html[data-tema="tarde"]{ --ceu:linear-gradient(180deg,#120e0e,#1d1512); --vermelho-2:#ff5533; }
html[data-tema="noite"]{ --ceu:linear-gradient(180deg,#07070a,#0e0e14); --texto:#e8e9ec; }

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--fundo);
  color:var(--texto);
  font-family:"Segoe UI",Inter,system-ui,-apple-system,Roboto,Arial,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:.25s}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .6rem;letter-spacing:-.02em}
h1{font-size:clamp(2rem,5vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.4rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--vermelho);padding:8px 14px;z-index:999;border-radius:8px}

/* ---------- Topo ---------- */
.topo{
  position:sticky;top:0;z-index:60;
  background:rgba(8,8,10,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--linha);
}
.topo-in{display:flex;align-items:center;justify-content:space-between;height:76px;gap:18px}
.marca{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em}
.marca img{width:46px;height:46px;border-radius:10px;object-fit:cover;border:1px solid var(--linha)}
.marca span{display:flex;flex-direction:column;font-size:1.05rem}
.marca b{color:var(--vermelho-2)}
.marca small{font-size:.62rem;font-weight:500;color:var(--cinza);letter-spacing:.14em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:6px}
.nav a{padding:10px 14px;border-radius:9px;font-size:.93rem;font-weight:600;color:#d9dbdf;position:relative}
.nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav a.on{color:#fff}
.nav a.on::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--vermelho);border-radius:2px}
.btn-nav{background:var(--vermelho);color:#fff!important;padding:11px 20px!important;border-radius:10px;
  box-shadow:0 8px 22px rgba(211,32,39,.32)}
.btn-nav:hover{background:var(--vermelho-2);transform:translateY(-1px)}
.burger{display:none;background:none;border:0;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:#fff;display:block;transition:.3s}
.clima{height:2px;background:linear-gradient(90deg,var(--vermelho),var(--vermelho-2),#fff0);}

/* ---------- Hero com carrossel infinito ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:var(--ceu)}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slides figure{position:absolute;inset:0;margin:0;opacity:0;transform:scale(1.08);
  transition:opacity 1.5s ease, transform 7s linear;background-size:cover;background-position:center}
.hero-slides figure.on{opacity:1;transform:scale(1)}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(6,6,8,.93) 8%,rgba(6,6,8,.72) 48%,rgba(6,6,8,.42) 100%)}
.hero-in{position:relative;z-index:2;padding:110px 0 90px;max-width:760px}
.tag{display:inline-flex;align-items:center;gap:9px;background:rgba(211,32,39,.14);
  border:1px solid rgba(211,32,39,.4);color:#ff9a9d;padding:7px 15px;border-radius:100px;
  font-size:.74rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-bottom:20px}
.tag i{width:7px;height:7px;border-radius:50%;background:var(--vermelho-2);animation:pulsa 1.8s infinite}
@keyframes pulsa{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,59,65,.6)}50%{opacity:.55;box-shadow:0 0 0 8px rgba(255,59,65,0)}}
.hero p.lead{font-size:1.09rem;color:#c9ccd2;max-width:620px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:11px;font-weight:700;
  font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:.25s;position:relative;overflow:hidden}
.btn-p{background:var(--vermelho);color:#fff;box-shadow:0 12px 30px rgba(211,32,39,.34)}
.btn-p:hover{background:var(--vermelho-2);transform:translateY(-2px);box-shadow:0 16px 38px rgba(255,59,65,.44)}
.btn-g{border-color:rgba(255,255,255,.24);color:#fff;background:rgba(255,255,255,.04)}
.btn-g:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);transition:.6s}
.btn:hover::after{left:130%}
.hero-num{display:flex;gap:38px;margin-top:48px;flex-wrap:wrap}
.hero-num div b{display:block;font-size:2rem;color:#fff;font-weight:800}
.hero-num div span{font-size:.78rem;color:var(--cinza);text-transform:uppercase;letter-spacing:.12em}

/* ---------- Secções ---------- */
section{padding:88px 0}
.sec-cab{max-width:720px;margin-bottom:44px}
.sec-cab .kick{color:var(--vermelho-2);font-size:.75rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;display:block;margin-bottom:12px}
.sec-cab p{color:var(--cinza)}
.alt{background:var(--preto-2)}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{background:var(--card);border:1px solid var(--linha);border-radius:var(--radius);padding:28px;transition:.3s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;width:0;height:3px;background:var(--vermelho);transition:.4s}
.card:hover{transform:translateY(-6px);background:rgba(255,255,255,.07);border-color:rgba(211,32,39,.35);box-shadow:var(--sombra)}
.card:hover::before{width:100%}
.card .ico{width:48px;height:48px;border-radius:12px;background:rgba(211,32,39,.15);border:1px solid rgba(211,32,39,.35);
  display:grid;place-items:center;margin-bottom:16px;color:var(--vermelho-2)}
.card p{color:var(--cinza);font-size:.94rem;margin:0}

/* ---------- Galerias ---------- */
.faixa{overflow:hidden;position:relative;padding:12px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.faixa-in{display:flex;gap:18px;width:max-content;animation:desliza 55s linear infinite}
.faixa:hover .faixa-in{animation-play-state:paused}
@keyframes desliza{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.faixa figure{margin:0;width:330px;height:220px;border-radius:12px;overflow:hidden;border:1px solid var(--linha);position:relative;flex:0 0 auto}
.faixa figure img{width:100%;height:100%;object-fit:cover;transition:.6s}
.faixa figure:hover img{transform:scale(1.08)}
.faixa figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;font-size:.78rem;
  background:linear-gradient(transparent,rgba(0,0,0,.85));color:#e6e7ea}

.galeria{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.galeria figure{margin:0;border-radius:12px;overflow:hidden;position:relative;aspect-ratio:4/3;border:1px solid var(--linha);cursor:zoom-in}
.galeria img{width:100%;height:100%;object-fit:cover;transition:.6s}
.galeria figure:hover img{transform:scale(1.07)}
.galeria figcaption{position:absolute;inset:auto 0 0 0;padding:30px 14px 12px;font-size:.8rem;font-weight:600;
  background:linear-gradient(transparent,rgba(0,0,0,.88));transform:translateY(6px);opacity:.9}

/* Lightbox */
.lb{position:fixed;inset:0;background:rgba(0,0,0,.93);display:none;place-items:center;z-index:200;padding:24px}
.lb.on{display:grid}
.lb img{max-width:92vw;max-height:88vh;border-radius:12px;box-shadow:var(--sombra)}
.lb button{position:absolute;top:22px;right:26px;background:var(--vermelho);border:0;color:#fff;width:42px;height:42px;
  border-radius:50%;font-size:1.2rem;cursor:pointer}

/* ---------- Depoimentos ---------- */
.dep{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dep article{background:var(--card);border:1px solid var(--linha);border-radius:var(--radius);padding:26px;transition:.3s}
.dep article:hover{border-color:rgba(211,32,39,.4);transform:translateY(-5px)}
.dep .quem{display:flex;align-items:center;gap:13px;margin-top:18px}
.dep .quem img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid var(--vermelho)}
.dep .quem b{display:block;font-size:.92rem}
.dep .quem span{font-size:.76rem;color:var(--cinza)}
.estrelas{color:#ffc107;letter-spacing:2px;font-size:.9rem}
.dep p{font-size:.94rem;color:#d3d6db;font-style:italic}

/* ---------- Formulário ---------- */
.form{background:var(--card);border:1px solid var(--linha);border-radius:16px;padding:34px}
.campo{margin-bottom:18px}
.campo label{display:block;font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#c3c6cb;margin-bottom:8px}
.campo input,.campo select,.campo textarea{
  width:100%;padding:13px 15px;background:rgba(0,0,0,.42);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;color:#fff;font-size:.95rem;font-family:inherit;transition:.25s}
.campo textarea{min-height:150px;resize:vertical}
.campo input:focus,.campo select:focus,.campo textarea:focus{
  outline:none;border-color:var(--vermelho);box-shadow:0 0 0 3px rgba(211,32,39,.18);background:rgba(0,0,0,.6)}
.campo select option{background:#15151a}
.aviso{padding:14px 16px;border-radius:10px;font-size:.9rem;margin-bottom:16px;display:none}
.aviso.ok{display:block;background:rgba(28,160,90,.14);border:1px solid rgba(28,160,90,.45);color:#84e0ae}
.aviso.erro{display:block;background:rgba(211,32,39,.14);border:1px solid rgba(211,32,39,.5);color:#ff9a9d}
.contactos-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:26px}
.info-bloco{background:var(--card);border:1px solid var(--linha);border-radius:16px;padding:26px;margin-bottom:18px}
.info-bloco a{color:var(--vermelho-2)}
.info-bloco a:hover{text-decoration:underline}

/* Chat cliente em tempo real */
.chat{border:1px solid var(--linha);border-radius:14px;background:rgba(0,0,0,.35);display:none;margin-top:20px;overflow:hidden}
.chat.on{display:block}
.chat header{padding:12px 16px;background:rgba(211,32,39,.14);font-size:.85rem;font-weight:700;border-bottom:1px solid var(--linha)}
.chat .fluxo{max-height:280px;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.bolha{max-width:80%;padding:10px 14px;border-radius:12px;font-size:.9rem}
.bolha.eu{align-self:flex-end;background:var(--vermelho);color:#fff}
.bolha.eles{align-self:flex-start;background:rgba(255,255,255,.09)}
.chat form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--linha)}
.chat input{flex:1;padding:11px;background:rgba(0,0,0,.5);border:1px solid var(--linha);border-radius:9px;color:#fff}

/* ---------- Rodapé ---------- */
.rodape{background:#050506;border-top:1px solid var(--linha);padding-top:60px}
.grid-rodape{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:34px;padding-bottom:40px}
.rodape h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.16em;color:#fff;margin-bottom:16px}
.rodape p{font-size:.9rem;color:var(--cinza);margin:0 0 8px}
.rodape a:hover{color:var(--vermelho-2)}
.marca-rodape img{width:40px;height:40px}
.miudo{font-size:.88rem!important;margin-top:14px!important}
.mapa{border-radius:12px;overflow:hidden;border:1px solid var(--linha);height:170px}
.mapa iframe{width:100%;height:100%;border:0;filter:grayscale(.35) contrast(1.05)}
.rodape-fim{border-top:1px solid var(--linha);padding:18px 22px;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;max-width:var(--max);margin:0 auto;font-size:.8rem;color:#7d838b}
.sig b{color:var(--vermelho-2)}

/* ---------- Painel administrativo ---------- */
.login-bg{min-height:100vh;display:grid;place-items:center;background:
  radial-gradient(1000px 500px at 50% -10%,rgba(211,32,39,.2),transparent),var(--preto);padding:24px}
.login-card{width:100%;max-width:420px;background:var(--preto-2);border:1px solid var(--linha);
  border-radius:18px;padding:38px;box-shadow:var(--sombra)}
.login-card img{width:76px;margin:0 auto 18px;border-radius:14px}
.login-card h1{font-size:1.4rem;text-align:center}
.login-card p.sub{text-align:center;color:var(--cinza);font-size:.86rem;margin-bottom:26px}

.painel{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.lateral{background:#08080a;border-right:1px solid var(--linha);padding:22px 16px;position:sticky;top:0;height:100vh;overflow:auto}
.lateral .marca{margin-bottom:26px}
.lateral a,.lateral button.aba{display:flex;align-items:center;gap:10px;width:100%;padding:11px 14px;border-radius:10px;
  color:#c8cbd0;font-size:.9rem;font-weight:600;background:none;border:0;cursor:pointer;text-align:left;margin-bottom:4px;font-family:inherit}
.lateral a:hover,.lateral button.aba:hover{background:rgba(255,255,255,.06);color:#fff}
.lateral button.aba.on{background:var(--vermelho);color:#fff}
.conteudo-painel{padding:26px 30px;overflow:auto}
.barra{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:100px;font-size:.76rem;font-weight:700}
.pill.live{background:rgba(28,160,90,.16);color:#7ce2a9;border:1px solid rgba(28,160,90,.4)}
.pill.off{background:rgba(211,32,39,.16);color:#ff9a9d;border:1px solid rgba(211,32,39,.4)}
.kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:26px}
.kpi{background:var(--card);border:1px solid var(--linha);border-radius:13px;padding:18px}
.kpi b{display:block;font-size:1.8rem;color:#fff;font-weight:800;line-height:1.1}
.kpi span{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--cinza)}
.kpi.vermelho b{color:var(--vermelho-2)}
.painel-sec{display:none}
.painel-sec.on{display:block}
table{width:100%;border-collapse:collapse;font-size:.88rem}
th{text-align:left;padding:12px;color:var(--cinza);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;border-bottom:1px solid var(--linha)}
td{padding:12px;border-bottom:1px solid rgba(255,255,255,.05)}
tr:hover td{background:rgba(255,255,255,.03)}
.estado{padding:4px 10px;border-radius:100px;font-size:.72rem;font-weight:700}
.estado.novo{background:rgba(211,32,39,.18);color:#ff9a9d}
.estado.em_andamento{background:rgba(255,193,7,.16);color:#ffd469}
.estado.concluido{background:rgba(28,160,90,.16);color:#7ce2a9}
.estado.arquivado{background:rgba(255,255,255,.08);color:var(--cinza)}
.mini{padding:7px 13px;font-size:.8rem;border-radius:8px;border:1px solid var(--linha);background:rgba(255,255,255,.05);
  color:#fff;cursor:pointer;font-family:inherit;font-weight:600}
.mini:hover{background:var(--vermelho);border-color:var(--vermelho)}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.82);display:none;place-items:center;z-index:300;padding:20px}
.modal.on{display:grid}
.modal-in{background:var(--preto-2);border:1px solid var(--linha);border-radius:16px;max-width:760px;width:100%;
  max-height:90vh;overflow:auto;padding:28px;box-shadow:var(--sombra)}
.grafico{display:flex;align-items:flex-end;gap:8px;height:170px;padding:14px;background:var(--card);
  border:1px solid var(--linha);border-radius:13px}
.grafico div{flex:1;background:linear-gradient(180deg,var(--vermelho-2),var(--vermelho));border-radius:5px 5px 0 0;
  min-height:5px;position:relative}
.grafico div span{position:absolute;top:-20px;left:0;right:0;text-align:center;font-size:.7rem;color:var(--cinza)}
.alerta{border-left:3px solid var(--cinza);background:var(--card);padding:14px 16px;border-radius:0 10px 10px 0;margin-bottom:10px}
.alerta.critico{border-color:var(--vermelho)}
.alerta.aviso{border-color:#ffc107}
.alerta.info{border-color:#4a9eff}
.alerta b{display:block;font-size:.92rem}
.alerta small{color:var(--cinza);font-size:.8rem}

/* ---------- Responsivo ---------- */
@media(max-width:980px){
  .g4,.kpis{grid-template-columns:repeat(2,1fr)}
  .g3,.galeria,.dep{grid-template-columns:repeat(2,1fr)}
  .grid-rodape{grid-template-columns:repeat(2,1fr)}
  .contactos-grid{grid-template-columns:1fr}
  .painel{grid-template-columns:1fr}
  .lateral{position:relative;height:auto;display:flex;flex-wrap:wrap;gap:6px}
  .lateral .marca{width:100%}
}
@media(max-width:720px){
  .nav{position:fixed;inset:76px 0 auto 0;background:rgba(8,8,10,.98);flex-direction:column;padding:18px;
    border-bottom:1px solid var(--linha);display:none}
  .nav.aberto{display:flex}
  .nav a{width:100%}
  .burger{display:flex}
  .g2,.g3,.g4,.galeria,.dep,.kpis,.grid-rodape{grid-template-columns:1fr}
  section{padding:60px 0}
  .hero-num{gap:24px}
  .faixa figure{width:250px;height:170px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}