/* ============================================================
   NORTE SUN — Energia e Sustentabilidade
   Folha de estilos principal
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root{
  /* Paleta */
  --verde-profundo:#173C2E;
  --verde-marca:#3F7D33;
  --verde-lima:#8CC63F;
  --dourado-sol:#E3A23C;
  --grafite:#1C2220;
  --fundo:#F6F7F2;
  --fundo-alt:#EEF1E9;
  --branco:#FFFFFF;
  --texto:#20261F;
  --texto-suave:#57615A;
  --borda:#DEE3D8;

  /* Tipografia */
  --f-display:'Space Grotesk', sans-serif;
  --f-texto:'Inter', sans-serif;

  /* Layout */
  --largura-max:1180px;
  --raio:10px;
  --sombra: 0 6px 24px rgba(23,60,46,.10);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--f-texto);
  color:var(--texto);
  background:var(--fundo);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{
  font-family:var(--f-display);
  color:var(--verde-profundo);
  line-height:1.15;
  margin:0 0 .5em;
  font-weight:600;
}
p{ margin:0 0 1em; color:var(--texto-suave); max-width:62ch; }
.container{
  max-width:var(--largura-max);
  margin:0 auto;
  padding:0 24px;
}
button{ font-family:inherit; cursor:pointer; }
:focus-visible{ outline:3px solid var(--dourado-sol); outline-offset:2px; }

/* ---------- Botões ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:13px 26px;
  border-radius:8px;
  font-weight:600;
  font-size:.96rem;
  border:2px solid transparent;
  transition:transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:active{ transform:translateY(1px); }
.btn-primario{ background:var(--verde-lima); color:var(--verde-profundo); }
.btn-primario:hover{ background:#7BB531; }
.btn-secundario{ background:transparent; border-color:rgba(255,255,255,.55); color:#fff; }
.btn-secundario:hover{ background:rgba(255,255,255,.12); }
.btn-outline{ background:transparent; border-color:var(--verde-marca); color:var(--verde-marca); }
.btn-outline:hover{ background:var(--verde-marca); color:#fff; }
.btn-whatsapp{ background:#25D366; color:#fff; }
.btn-whatsapp:hover{ background:#1EBE5A; }
.btn[disabled]{ opacity:.55; cursor:not-allowed; }

/* ---------- Cabeçalho ---------- */
.cabecalho{
  position:sticky; top:0; z-index:100;
  background:rgba(246,247,242,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--borda);
}
.cabecalho .container{
  display:flex; align-items:center; justify-content:space-between;
  height:74px;
}
.marca{ display:flex; align-items:center; gap:10px; }
.marca img{ width:42px; height:42px; border-radius:50%; object-fit:cover; }
.marca-texto{ font-family:var(--f-display); font-weight:700; color:var(--verde-profundo); line-height:1.1; font-size:1.05rem; }
.marca-texto span{ display:block; font-family:var(--f-texto); font-weight:500; color:var(--texto-suave); font-size:.66rem; letter-spacing:.02em; }

.nav-principal{ display:flex; align-items:center; gap:4px; }
.nav-link{
  padding:10px 14px; border-radius:7px; font-weight:600; font-size:.92rem;
  color:var(--texto); border:none; background:transparent;
}
.nav-link:hover{ background:var(--fundo-alt); }
.nav-link.ativo{ color:var(--verde-profundo); background:#E3EEDB; }

.acoes-cabecalho{ display:flex; align-items:center; gap:10px; }
.tel-cabecalho{ display:flex; align-items:center; gap:6px; font-weight:600; font-size:.9rem; color:var(--verde-profundo); }

.botao-menu{
  display:none; background:none; border:none; padding:8px;
  flex-direction:column; gap:5px;
}
.botao-menu span{ width:24px; height:2.5px; background:var(--verde-profundo); border-radius:2px; }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--verde-profundo);
  color:#fff;
  overflow:hidden;
  padding:76px 0 96px;
}

/* Slideshow de fotos da galeria, ao fundo do banner */
.hero-slideshow{ position:absolute; inset:0; z-index:0; }
.hero-slideshow img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition:opacity 1.8s ease;
}
.hero-slideshow img.mostrar{ opacity:.5; }

/* Camada escura sobre as fotos, para manter o texto legível */
.hero-overlay{
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(100deg,
    rgba(17,46,35,.94) 0%,
    rgba(17,46,35,.86) 38%,
    rgba(17,46,35,.55) 66%,
    rgba(17,46,35,.30) 100%);
}

/* Detalhe diagonal verde, reduzido a um acento na borda direita */
.hero::before{
  content:"";
  position:absolute; top:-20%; right:-6%; width:26%; height:150%;
  background:linear-gradient(135deg, var(--verde-marca) 0%, var(--verde-lima) 100%);
  clip-path:polygon(55% 0, 100% 0, 100% 100%, 28% 100%);
  opacity:.85; z-index:2;
}
.hero::after{
  content:"";
  position:absolute; top:-25%; right:-2%; width:13%; height:150%;
  background:var(--grafite);
  clip-path:polygon(50% 0, 100% 0, 100% 100%, 20% 100%);
  opacity:.18; z-index:2;
}
.hero .container{ position:relative; z-index:3; display:grid; grid-template-columns:1.15fr .85fr; gap:40px; align-items:center; }
.hero-eyebrow{ font-weight:600; color:var(--verde-lima); letter-spacing:.02em; margin-bottom:14px; font-size:.95rem; }
.hero h1{ color:#fff; font-size:clamp(2rem,4vw,3.1rem); max-width:14ch; margin-bottom:18px; }
.hero p{ color:rgba(255,255,255,.82); font-size:1.08rem; max-width:46ch; }
.hero-acoes{ display:flex; flex-wrap:wrap; gap:14px; margin-top:28px; }
.hero-stats{ display:flex; gap:28px; margin-top:44px; flex-wrap:wrap; }
.hero-stats div strong{ display:block; font-family:var(--f-display); font-size:1.7rem; color:#fff; }
.hero-stats div span{ font-size:.82rem; color:rgba(255,255,255,.72); }
.hero-figura{ position:relative; z-index:2; }
.hero-figura .cartao-flutuante{
  background:#fff; color:var(--texto); border-radius:14px; padding:26px 24px;
  box-shadow:0 20px 50px rgba(0,0,0,.28); max-width:300px; margin-left:auto;
}
.hero-figura .cartao-flutuante h4{ font-size:1.15rem; margin:0; line-height:1.35; }
.hero-figura .cartao-flutuante p{ font-size:.85rem; margin:8px 0 0; }

/* ---------- Seções ---------- */
.secao{ padding:78px 0; }
.secao-alt{ background:var(--fundo-alt); }
.cabecalho-secao{ max-width:640px; margin-bottom:44px; }
.rotulo{
  display:inline-block; font-weight:700; color:var(--verde-marca); font-size:.82rem;
  margin-bottom:10px; padding:4px 12px; background:#E3EEDB; border-radius:20px;
}
.cabecalho-secao h2{ font-size:clamp(1.6rem,3vw,2.2rem); }

/* Abas (páginas internas via JS) */
.pagina{ display:none; }
.pagina.ativa{ display:block; }

/* ---------- Institucional ---------- */
.grade-institucional{ display:grid; grid-template-columns:1.3fr .9fr; gap:56px; align-items:start; }
.bloco-mvv{ background:#fff; border:1px solid var(--borda); border-radius:var(--raio); padding:26px; margin-bottom:18px; box-shadow:var(--sombra); }
.bloco-mvv h3{ font-size:1.05rem; display:flex; align-items:center; gap:10px; }
.bloco-mvv h3 .icone{ width:34px; height:34px; border-radius:8px; background:#E3EEDB; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.bloco-mvv h3 .icone svg{ width:18px; height:18px; stroke:var(--verde-marca); }

.painel-dados{ background:var(--verde-profundo); color:#fff; border-radius:14px; padding:30px 28px; }
.painel-dados h3{ color:#fff; font-size:1.05rem; }
.lista-dados{ margin-top:16px; }
.lista-dados li{ display:flex; gap:12px; padding:12px 0; border-top:1px solid rgba(255,255,255,.14); font-size:.92rem; }
.lista-dados li:first-child{ border-top:none; }
.lista-dados li svg{ width:18px; height:18px; stroke:var(--verde-lima); flex-shrink:0; margin-top:2px; }
.lista-dados li span{ color:rgba(255,255,255,.85); }
.lista-dados li strong{ display:block; color:#fff; font-size:.8rem; letter-spacing:.02em; margin-bottom:2px; }

.grade-certificacoes{ display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:16px; margin-top:26px; }
.cartao-cert{ background:#fff; border:1px solid var(--borda); border-radius:var(--raio); padding:18px; }
.cartao-cert strong{ display:block; color:var(--verde-profundo); font-family:var(--f-display); margin-bottom:4px; }
.cartao-cert p{ font-size:.85rem; margin:0; }

.grade-objetivos{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:18px; margin-top:10px; }
.item-objetivo{ display:flex; gap:14px; background:#fff; border:1px solid var(--borda); border-radius:var(--raio); padding:18px; }
.item-objetivo .num{ font-family:var(--f-display); font-weight:700; color:var(--verde-lima); font-size:1.3rem; flex-shrink:0; }
.item-objetivo p{ margin:0; font-size:.9rem; }

/* ---------- Especialidades ---------- */
.grade-especialidades{ display:grid; grid-template-columns:repeat(auto-fit,minmax(270px,1fr)); gap:22px; }
.cartao-especialidade{
  background:#fff; border:1px solid var(--borda); border-radius:14px; padding:28px 26px;
  transition:box-shadow .2s ease, border-color .2s ease;
}
.cartao-especialidade:hover{ box-shadow:var(--sombra); border-color:transparent; }
.cartao-especialidade .icone{
  width:52px; height:52px; border-radius:12px; background:var(--verde-profundo);
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.cartao-especialidade .icone svg{ width:26px; height:26px; stroke:#fff; }
.cartao-especialidade h3{ font-size:1.08rem; margin-bottom:8px; }
.cartao-especialidade p{ font-size:.92rem; margin-bottom:14px; }
.cartao-especialidade ul{ display:flex; flex-direction:column; gap:6px; }
.cartao-especialidade ul li{ font-size:.85rem; color:var(--texto-suave); display:flex; gap:8px; align-items:flex-start; }
.cartao-especialidade ul li::before{ content:"—"; color:var(--verde-lima); font-weight:700; flex-shrink:0; }
.selo-novo{ display:inline-block; font-size:.68rem; font-weight:700; color:var(--dourado-sol); background:#FBF0DD; padding:2px 9px; border-radius:12px; margin-left:8px; vertical-align:middle; }

.faixa-marcas{ margin-top:56px; padding-top:36px; border-top:1px solid var(--borda); }
.faixa-marcas p{ font-size:.85rem; margin-bottom:14px; }
.lista-marcas{ display:flex; flex-wrap:wrap; gap:10px; }
.lista-marcas span{ font-size:.82rem; font-weight:600; color:var(--texto-suave); background:#fff; border:1px solid var(--borda); padding:7px 14px; border-radius:20px; }

/* ---------- Galeria ---------- */
.filtros-galeria{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:30px; }
.filtro{
  background:#fff; border:1px solid var(--borda); padding:9px 18px; border-radius:22px;
  font-size:.85rem; font-weight:600; color:var(--texto-suave);
}
.filtro.ativo{ background:var(--verde-profundo); border-color:var(--verde-profundo); color:#fff; }
.grade-galeria{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:16px;
}
.item-galeria{
  position:relative; border-radius:12px; overflow:hidden; cursor:pointer; aspect-ratio:4/3;
  background:var(--fundo-alt);
}
.item-galeria img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .5s ease, opacity .35s ease;
}
.item-galeria:hover img{ transform:scale(1.06); }
.item-galeria .legenda{
  position:absolute; inset:auto 0 0 0; padding:14px 16px 12px;
  background:linear-gradient(0deg, rgba(0,0,0,.72), transparent);
  color:#fff; font-size:.82rem; font-weight:600;
  opacity:0; transform:translateY(6px); transition:opacity .25s ease, transform .25s ease;
}
.item-galeria:hover .legenda{ opacity:1; transform:translateY(0); }
.item-galeria.escondido{ display:none; }

.bloco-videos{ margin-top:60px; padding-top:44px; border-top:1px solid var(--borda); }
.aviso-videos{
  display:flex; gap:16px; align-items:flex-start; background:#fff; border:1px dashed var(--borda);
  border-radius:var(--raio); padding:22px;
}
.aviso-videos svg{ width:28px; height:28px; stroke:var(--verde-marca); flex-shrink:0; }
.aviso-videos p{ margin:0 0 10px; font-size:.92rem; }
.grade-videos{ display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:18px; }
.item-video{ border-radius:12px; overflow:hidden; background:#000; aspect-ratio:16/9; }
.item-video video, .item-video iframe{ width:100%; height:100%; border:0; }

/* Lightbox */
.lightbox{
  position:fixed; inset:0; background:rgba(15,20,17,.92); z-index:1000;
  display:none; align-items:center; justify-content:center; padding:30px;
}
.lightbox.aberta{ display:flex; }
.lightbox img{ max-width:min(900px,92vw); max-height:82vh; border-radius:10px; opacity:0; transform:scale(.97); transition:opacity .25s ease, transform .25s ease; }
.lightbox img.mostrar{ opacity:1; transform:scale(1); }
.lightbox-legenda{ position:absolute; bottom:34px; left:0; right:0; text-align:center; color:#fff; font-size:.9rem; }
.lightbox-fechar, .lightbox-prev, .lightbox-next{
  position:absolute; background:rgba(255,255,255,.12); border:none; color:#fff; border-radius:50%;
  width:44px; height:44px; display:flex; align-items:center; justify-content:center;
}
.lightbox-fechar{ top:22px; right:22px; }
.lightbox-fechar:hover, .lightbox-prev:hover, .lightbox-next:hover{ background:rgba(255,255,255,.24); }
.lightbox-prev{ left:18px; top:50%; transform:translateY(-50%); }
.lightbox-next{ right:18px; top:50%; transform:translateY(-50%); }
.lightbox svg{ width:20px; height:20px; stroke:#fff; }

/* ---------- Boas práticas ---------- */
.grade-dicas{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:20px; }
.cartao-dica{ background:#fff; border:1px solid var(--borda); border-radius:14px; overflow:hidden; }
.cartao-dica summary{
  list-style:none; cursor:pointer; padding:22px 24px; display:flex; align-items:center; gap:14px;
  font-family:var(--f-display); font-weight:600; color:var(--verde-profundo); font-size:1rem;
}
.cartao-dica summary::-webkit-details-marker{ display:none; }
.cartao-dica summary .icone{
  width:38px; height:38px; border-radius:9px; background:#E3EEDB; display:flex; align-items:center;
  justify-content:center; flex-shrink:0;
}
.cartao-dica summary .icone svg{ width:19px; height:19px; stroke:var(--verde-marca); }
.cartao-dica summary::after{
  content:"+"; margin-left:auto; font-size:1.4rem; color:var(--texto-suave); font-family:var(--f-texto); font-weight:400;
}
.cartao-dica[open] summary::after{ content:"–"; }
.corpo-dica{ padding:0 24px 24px 78px; }
.corpo-dica p{ font-size:.92rem; margin-bottom:.6em; }
.corpo-dica ul{ padding-left:0; }
.corpo-dica ul li{ font-size:.9rem; color:var(--texto-suave); padding:4px 0 4px 20px; position:relative; }
.corpo-dica ul li::before{ content:"✓"; position:absolute; left:0; color:var(--verde-marca); font-weight:700; }

/* ---------- Clientes ---------- */
.grade-clientes{ display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:18px; align-items:center; }
.item-cliente{
  background:#fff; border:1px solid var(--borda); border-radius:12px; height:96px;
  display:flex; align-items:center; justify-content:center; padding:16px;
}
.item-cliente img{ max-height:100%; max-width:100%; object-fit:contain; filter:grayscale(15%); }

/* ---------- Contato ---------- */
.grade-contato{ display:grid; grid-template-columns:.95fr 1.05fr; gap:48px; align-items:start; }
.form-contato{ background:#fff; border:1px solid var(--borda); border-radius:14px; padding:30px; box-shadow:var(--sombra); }
.campo{ margin-bottom:18px; }
.campo label{ display:block; font-size:.85rem; font-weight:600; margin-bottom:7px; color:var(--texto); }
.campo input, .campo select, .campo textarea{
  width:100%; padding:12px 14px; border:1px solid var(--borda); border-radius:8px;
  font-family:inherit; font-size:.94rem; background:var(--fundo); color:var(--texto);
}
.campo input:focus, .campo select:focus, .campo textarea:focus{ outline:none; border-color:var(--verde-marca); background:#fff; }
.campo-linha{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.acoes-form{ display:flex; flex-wrap:wrap; gap:12px; margin-top:8px; }
.msg-form{ margin-top:14px; font-size:.86rem; display:none; }
.msg-form.mostrar{ display:block; }

.cartoes-contato{ display:flex; flex-direction:column; gap:14px; margin-bottom:26px; }
.cartao-contato{ display:flex; gap:14px; background:#fff; border:1px solid var(--borda); border-radius:12px; padding:18px 20px; }
.cartao-contato .icone{ width:42px; height:42px; border-radius:10px; background:#E3EEDB; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.cartao-contato .icone svg{ width:20px; height:20px; stroke:var(--verde-marca); }
.cartao-contato strong{ display:block; font-size:.86rem; color:var(--texto-suave); font-weight:600; }
.cartao-contato a, .cartao-contato span.valor{ font-weight:600; color:var(--verde-profundo); font-size:.98rem; }
.mapa-wrap{ border-radius:14px; overflow:hidden; border:1px solid var(--borda); height:260px; }
.mapa-wrap iframe{ width:100%; height:100%; border:0; }
.redes-contato{ display:flex; gap:10px; margin-top:20px; }
.redes-contato a{
  width:42px; height:42px; border-radius:50%; background:var(--verde-profundo); color:#fff;
  display:flex; align-items:center; justify-content:center;
}
.redes-contato a:hover{ background:var(--verde-marca); }
.redes-contato svg{ width:19px; height:19px; stroke:#fff; }

/* ---------- Rodapé ---------- */
.rodape{ background:var(--grafite); color:rgba(255,255,255,.75); padding:56px 0 26px; }
.grade-rodape{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:40px; }
.rodape h4{ color:#fff; font-size:.9rem; margin-bottom:16px; }
.rodape-marca{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.rodape-marca img{ width:38px; height:38px; border-radius:50%; }
.rodape-marca strong{ color:#fff; font-family:var(--f-display); }
.rodape p{ font-size:.86rem; color:rgba(255,255,255,.62); }
.rodape ul li{ margin-bottom:10px; font-size:.86rem; }
.rodape ul li a:hover{ color:var(--verde-lima); }
.rodape-baixo{
  border-top:1px solid rgba(255,255,255,.12); padding-top:22px; display:flex;
  justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.8rem; color:rgba(255,255,255,.5);
}

/* Botão flutuante WhatsApp */
.whatsapp-flutuante{
  position:fixed; bottom:24px; right:24px; z-index:90;
  width:58px; height:58px; border-radius:50%; background:#25D366;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 26px rgba(0,0,0,.28);
}
.whatsapp-flutuante svg{ width:28px; height:28px; fill:#fff; }
.whatsapp-flutuante:hover{ transform:translateY(-2px); }

/* ---------- Responsivo ---------- */
@media (max-width:940px){
  .nav-principal{
    position:fixed; inset:74px 0 0 0; background:var(--fundo); flex-direction:column; align-items:stretch;
    padding:18px 24px; gap:4px; transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .2s ease, transform .2s ease;
    overflow:auto; border-top:1px solid var(--borda);
  }
  .nav-principal.aberta{ opacity:1; transform:none; pointer-events:auto; }
  .nav-link{ padding:14px 10px; border-bottom:1px solid var(--borda); border-radius:0; }
  .botao-menu{ display:flex; }
  .tel-cabecalho{ display:none; }
  .hero .container{ grid-template-columns:1fr; }
  .hero-figura{ display:none; }
  .grade-institucional{ grid-template-columns:1fr; }
  .grade-contato{ grid-template-columns:1fr; }
  .campo-linha{ grid-template-columns:1fr; }
  .grade-rodape{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){
  .secao{ padding:56px 0; }
  .hero{ padding:56px 0 76px; }
  .grade-rodape{ grid-template-columns:1fr; }
  .rodape-baixo{ flex-direction:column; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}