/* ===============================
   Variáveis e estilos base
================================= */
:root{
 
  --green-500: #7CCC2D;
  --green-600: #4B8E24;
  --green-700: #276413;
  --green-neon: #A3DB6C;
  --black:#0d0f12;
  --white:#ffffff;
  --gray-100:#f5f7f8;
  --gray-200:#e9eef0;
  --gray-400:#a8b0b6;
  --gray-700:#3b434a;

  --container:1200px;
  --radius:16px;
  --shadow:0 8px 24px rgba(0,0,0,.12);
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--black);
  background:var(--white);
  line-height:1.5;
}

.container{
  width:min(var(--container), 92%);
  margin-inline:auto;
}

/* ===============================
   Header fixo + navegação
================================= */

.site-header{
  position: fixed; top:0; left:0; right:0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--gray-200);
  transform: translateY(0);
  transition: transform .24s ease, box-shadow .24s ease;
}
.site-header.header-hidden{
  transform: translateY(-100%);
}
.site-header.header-scrolled{
  box-shadow: 0 10px 24px rgba(0,0,0,.06);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 0;
}

/* Marca apenas com imagem */
.brand{
  display:inline-flex;
  align-items:center;
  gap:.6rem;               /* mantém espaçamento caso o logo tenha respiro */
  text-decoration:none;
}

.brand img{
  display:block;
  height:92px;             /* ajuste conforme seu logo */
  width:auto;
}

.site-nav .nav-toggle{
  display:none;
  border:0; background:transparent; font-size:1.5rem; cursor:pointer;
}
.nav-list{
  display:flex; gap:1rem; list-style:none; padding:0; margin:0;
}
.nav-link{
  display:inline-block; padding:.55rem .9rem; text-decoration:none;
  color:var(--black); border-radius:999px;
}
.nav-link:hover{ background:var(--gray-100) }
.btn-cta{
  background:var(--black); color:var(--white);
}
.btn-cta:hover{ background:#1a1f24 }

/* Mobile menu */
@media (max-width: 860px){
  .site-nav .nav-toggle{ display:block }
  .nav-list{
    position:absolute; right:4%; top:60px;
    background:var(--white);
    border:1px solid var(--gray-200);
    border-radius:12px; box-shadow:var(--shadow);
    padding:.5rem; width:220px; flex-direction:column; gap:.25rem;
    display:none;
  }
  .nav-list.open{ display:flex }
}

/* ===============================
   Sessão Início (Hero)
================================= */
.sec-inicio{
  position:relative;
  padding: 120px 0 96px;
  background:
    radial-gradient(80% 80% at 10% 10%, rgba(16,185,129,.12), transparent 60%),
    radial-gradient(60% 60% at 80% 20%, rgba(16,185,129,.10), transparent 60%),
    linear-gradient(180deg, #fff, #fdfefe);
}

.hero{
  display:grid; gap:40px;
  grid-template-columns: 1.1fr .9fr;
}
@media (max-width: 1000px){
  .hero{ grid-template-columns: 1fr; }
}

.hero-content h1{
  font-size: clamp(28px, 4.5vw, 44px);
  line-height:1.12;
  margin: 0 0 14px 0;
  letter-spacing:-.02em;
  font-weight:800;
}
.hero-content .accent{
  display:block;
  background: linear-gradient(90deg, var(--green-500), var(--green-neon));
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size: clamp(16px, 2.2vw, 18px);
  color:var(--gray-700);
  margin:0 0 22px 0;
}

.hero-actions{
  display:flex; gap:12px; flex-wrap:wrap; margin-bottom:18px;
}

.btn-glow{
  position:relative;
  box-shadow:0 0 16px rgba(0,255,178,.4), 0 0 32px rgba(0,255,178,.2);
  animation:pulseGlow 3s ease-in-out infinite;
}
@keyframes pulseGlow{
  0%,100%{ box-shadow:0 0 12px rgba(0,255,178,.25), 0 0 30px rgba(0,255,178,.15); }
  50%{ box-shadow:0 0 20px rgba(0,255,178,.5), 0 0 45px rgba(0,255,178,.35); }
}
.btn-glow:hover{
  background:var(--green-neon);
  color:var(--black);
  transform:scale(1.04);
}

.btn{
  padding:.9rem 1.1rem; border-radius:12px; text-decoration:none; font-weight:600;
  border:1px solid transparent; transition: transform .04s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background:var(--green-500); color:var(--black); }
.btn-primary:hover{ background:var(--green-600); }
.btn-outline{
  border-color:var(--gray-200); color:var(--black); background:var(--white);
}
.btn-outline:hover{ border-color:var(--gray-400); }

.hero-highlights{
  display:flex; gap:10px; padding:0; margin:6px 0 0 0; list-style:none; flex-wrap:wrap;
}
.hero-highlights li{
  padding:.45rem .7rem; border-radius:999px; font-size:.95rem;
  background: #eefaf4; border:1px dashed rgba(16,185,129,.35);
  color:#0d4b35;
}

/* Visual do hero: cards em grade */
.hero-visual{
  display:grid; place-items:center;
}
.hero-img{
  width:80%; height:auto;
  border-radius:20px;
  box-shadow:0 10px 28px rgba(0,0,0,.15);
  border:1px solid var(--gray-200);
  transform:scale(1);
  transition:transform .4s ease;
}
.hero-img:hover{
  transform:scale(1.03);
}

/* Indicador de rolagem para a próxima seção */
.scroll-down{
  position:absolute; left:50%; bottom:22px; transform:translateX(-50%);
  text-decoration:none; color:var(--green-700);
  font-size: 28px; line-height:1;
  border:1px solid transparent; padding:.1rem .5rem; border-radius:999px;
}
.scroll-down:hover{ border-color:var(--green-500); }

/* ===============================
   Placeholders das próximas seções
   (vamos preencher depois)
================================= */
.sec-placeholder{
  min-height: 40vh;
  border-top:1px solid var(--gray-200);
  background: linear-gradient(180deg, #fff, #f9fbfb);
}
/* Âncoras com offset para header fixo */
section[id]{
  scroll-margin-top: 84px; /* altura aproximada do header */
}

/* Skip link (acessibilidade) */
.skip-link{
  position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:16px; top:12px; width:auto; height:auto;
  background: var(--black); color: var(--white);
  padding:.5rem .75rem; border-radius:8px; z-index:1100;
}

/* =========================================
   Preferência do sistema: modo escuro
   (dark mode nativo, sem toggle manual)
========================================= */
@media (prefers-color-scheme: dark){
  :root{
    /* Fundos e textos */
    --black:#0b0d10;          /* fundo base */
    --white:#f2f5f7;          /* texto principal em fundo escuro */
    --gray-100:#14181d;
    --gray-200:#1c232a;
    --gray-400:#8e99a3;
    --gray-700:#c6d0d8;

    /* Verdes (mantemos os mesmos para consistência) */
    /* --green-500, --green-600, --green-700, --green-neon: sem mudanças */

    /* Sombra mais sutil em dark */
    --shadow: 0 10px 24px rgba(0,0,0,.45);
  }

  /* Corpo e superfícies */
  body{ background: var(--black); color: var(--white); }

  .site-header{
    background: rgba(15,18,22,0.78);
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .site-header.header-scrolled{
    box-shadow: 0 12px 28px rgba(0,0,0,.55);
  }

  /* Navegação */
  .nav-link{ color: var(--white); }
  .nav-link:hover{ background: rgba(255,255,255,.06); }
  .btn-cta{ background: var(--green-500); color:#0b0d10; }

  /* Hero backgrounds mais escuros */
  .sec-inicio{
    background:
      radial-gradient(80% 80% at 10% 10%, rgba(16,185,129,.10), transparent 60%),
      radial-gradient(60% 60% at 80% 20%, rgba(16,185,129,.08), transparent 60%),
      linear-gradient(180deg, #0b0d10, #0f1318);
  }

  /* Cards gerais (serviços, métricas, etc.) */
  .grid-cards .card,
  .m-card,
  .srv-card,
  .sup-box,
  .contato-form,
  .info-card,
  .map-card{
    background: #12171c;
    border: 1px solid rgba(255,255,255,.06);
    box-shadow: var(--shadow);
    color: var(--white);
  }
  .srv-card:hover{
    border-color: rgba(16,185,129,.35);
    box-shadow: 0 16px 32px rgba(0,0,0,.6);
  }

  /* Texto secundário em cinza claro para legibilidade */
  .hero-sub,
  .lead,
  .sup-note,
  .info-card ul li,
  .map-card,
  .footer-brand p{ color: var(--gray-700); }

  /* Botões */
  .btn-primary{
    background: var(--green-500); color:#0b0d10; border-color: transparent;
  }
  .btn-primary:hover{ background: var(--green-600); }
  .btn-outline{
    background: transparent; color: var(--white);
    border-color: rgba(255,255,255,.14);
  }
  .btn-outline:hover{ border-color: rgba(255,255,255,.28); }

  /* Listas em pills */
  .hero-highlights li{
    background: rgba(16,185,129,.10);
    border:1px dashed rgba(16,185,129,.35);
    color:#c9ffe9;
  }

  /* Placeholders/Seções base */
  .sec-placeholder,
  .sec-sobre,
  .sec-servicos,
  .sec-suporte,
  .sec-contato{
    background: linear-gradient(180deg, #0b0d10, #0e1318);
    border-top:1px solid rgba(255,255,255,.06);
  }

  /* Inputs e selects */
  .field input, .field select, .field textarea,
  .sup-form input{
    background:#0f1419; color: var(--white);
    border:1px solid rgba(255,255,255,.12);
  }
  .field input:focus, .field select:focus, .field textarea:focus,
  .sup-form input:focus{
    border-color: var(--green-500);
    box-shadow: 0 0 0 2px rgba(16,185,129,.25);
  }

  /* Rodapé já é escuro — só reforço dos tons */
  .site-footer{
    background:#0a0d10; color: var(--white);
  }
  .footer-bottom{ border-top:1px solid rgba(255,255,255,.08); }
}