/* ===========================================================
   CS Condutores Elétricos — tema base (Fase 1)
   Paleta herdada do projeto original (styles.css)
   =========================================================== */
:root{
  --primary:#E56A2D;          /* laranja/cobre da marca */
  --primary-hover:#CC5722;
  --primary-fg:#ffffff;
  --ink:oklch(0.185 0.012 264);      /* seções escuras */
  --ink-fg:oklch(0.97 0.002 250);
  --ink-muted:oklch(0.72 0.008 258);
  --fg:oklch(0.20 0.012 264);        /* texto padrão */
  --muted-fg:oklch(0.50 0.012 258);
  --bg:#ffffff;
  --surface:oklch(0.972 0.003 250);
  --border:oklch(0.912 0.004 250);
  --brand-blue:oklch(0.42 0.13 255);
  --radius:0.25rem;
  --maxw:1200px;
  --font-display:"Archivo",system-ui,sans-serif;
  --font-sans:"IBM Plex Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);color:var(--fg);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;font-weight:700;letter-spacing:-.01em;margin:0 0 .5em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.eyebrow{font-family:var(--font-display);text-transform:uppercase;letter-spacing:.12em;
  font-size:.78rem;font-weight:700;color:var(--primary)}
.section{padding:72px 0}
.section--dark{background:var(--ink);color:var(--ink-fg)}
.section--surface{background:var(--surface)}
.section__head{max-width:720px;margin-bottom:40px}
.section__head h2{font-size:clamp(1.6rem,3vw,2.3rem)}
.section--dark .section__head p,.section--dark p{color:var(--ink-muted)}
.lead{font-size:1.05rem;color:var(--muted-fg)}

/* Botões */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-display);
  font-weight:600;font-size:.95rem;padding:.8rem 1.4rem;border-radius:var(--radius);
  border:2px solid transparent;cursor:pointer;transition:.15s}
.btn--primary{background:var(--primary);color:var(--primary-fg)}
.btn--primary:hover{background:var(--primary-hover)}
.btn--ghost{background:transparent;border-color:currentColor}
.btn--ghost:hover{background:rgba(255,255,255,.08)}
.btn--light{background:#fff;color:var(--ink)}

/* Cabeçalho */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-family:var(--font-display);font-weight:800;font-size:1.15rem;letter-spacing:-.02em}
.brand span{color:var(--primary)}
.brand-logo{height:42px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:1.4rem}
.nav a{font-family:var(--font-display);font-weight:600;font-size:.92rem;color:var(--fg)}
.nav a:hover{color:var(--primary)}
.nav .btn{padding:.55rem 1rem}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer}

/* Hero */
.hero{position:relative;background:var(--ink);color:var(--ink-fg);padding:96px 0;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;
  background:radial-gradient(900px 400px at 85% -10%,rgba(229,106,45,.22),transparent 60%)}
.hero .container{position:relative;z-index:1;max-width:820px}
.hero h1{font-size:clamp(2.1rem,5vw,3.4rem)}
.hero .sub{font-size:1.15rem;color:var(--ink-muted);margin:1rem 0 1.8rem;max-width:620px}
.hero .actions{display:flex;gap:.8rem;flex-wrap:wrap}

/* Grades */
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;height:100%}
.section--dark .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.10)}
.card h3{font-size:1.1rem}
.card .num{font-family:var(--font-display);font-weight:800;color:var(--primary);font-size:1.5rem}

/* Produto */
.product-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius);transition:.15s}
.product-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.08);transform:translateY(-2px)}
.product-card .thumb{aspect-ratio:4/3;background:var(--surface);object-fit:cover;width:100%}
.product-card .body{padding:18px;display:flex;flex-direction:column;gap:.5rem;flex:1}
.product-card h3{font-size:1.02rem;margin:0}
.product-card p{font-size:.9rem;color:var(--muted-fg);margin:0;flex:1}
.product-card .more{color:var(--primary);font-weight:600;font-family:var(--font-display);font-size:.88rem}

/* CTA band */
.cta{background:var(--primary);color:#fff;text-align:center}
.cta h2{color:#fff}
.cta .actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;margin-top:1.2rem}

/* Rodapé */
.site-footer{background:var(--ink);color:var(--ink-fg);padding:56px 0 28px}
.site-footer a{color:var(--ink-muted)}
.site-footer a:hover{color:#fff}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.site-footer h4{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em}
.site-footer .muted{color:var(--ink-muted);font-size:.9rem}
.site-footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.82rem;color:var(--ink-muted)}

/* WhatsApp flutuante */
.wa-fab{position:fixed;right:18px;bottom:18px;z-index:60;background:#25D366;color:#fff;
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-weight:700;box-shadow:0 8px 24px rgba(0,0,0,.25)}

/* Chips de filtro (catálogo) */
.chip{display:inline-flex;align-items:center;padding:.45rem .9rem;border:1px solid var(--border);
  border-radius:999px;font-family:var(--font-display);font-weight:600;font-size:.85rem;color:var(--fg);background:#fff}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip--active{background:var(--ink);color:#fff;border-color:var(--ink)}
.product-card .code{font-family:var(--font-display);font-size:.72rem;font-weight:700;color:var(--primary);letter-spacing:.06em}

/* Tabela de especificações / dimensional */
.spec-table{width:100%;border-collapse:collapse;font-size:.92rem;margin-top:12px}
.spec-table th,.spec-table td{border:1px solid var(--border);padding:.6rem .8rem;text-align:left;vertical-align:top}
.spec-table tbody th{width:38%;background:var(--surface);font-weight:600;font-family:var(--font-sans)}
.dim-table{min-width:720px}
.dim-table thead th{background:var(--ink);color:#fff;font-family:var(--font-display);font-size:.82rem;white-space:nowrap}
.dim-table tbody td{white-space:nowrap}

/* Listas de documentos */
.doc-list{list-style:none;padding:0;margin:12px 0;display:flex;flex-direction:column;gap:8px}
.doc-list a{color:var(--primary);font-weight:600;font-family:var(--font-display);font-size:.95rem}
.doc-list .muted{color:var(--muted-fg);font-weight:400;font-family:var(--font-sans)}

/* Formulários */
.form{display:flex;flex-direction:column;gap:16px}
.form label{display:flex;flex-direction:column;gap:6px;font-family:var(--font-display);font-weight:600;font-size:.88rem;color:var(--fg)}
.form input,.form textarea,.form select{
  font-family:var(--font-sans);font-weight:400;font-size:1rem;color:var(--fg);
  padding:.7rem .8rem;border:1px solid var(--border);border-radius:var(--radius);background:#fff;width:100%}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
.form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .check{flex-direction:row;align-items:flex-start;gap:8px;font-weight:400;font-family:var(--font-sans);font-size:.9rem;color:var(--muted-fg)}
.form .check input{width:auto;margin-top:3px}
.form button{align-self:flex-start;margin-top:4px}
.alert{padding:14px 16px;border-radius:var(--radius);margin-bottom:20px;font-size:.95rem}
.alert--ok{background:#e9f7ef;border:1px solid #9bd8b4;color:#1d6b3f}
.alert--err{background:#fdecec;border:1px solid #f0a9a9;color:#a32020}
@media(max-width:620px){.form .form-row{grid-template-columns:1fr}}

/* Responsivo */
@media(max-width:960px){.grid--4{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:repeat(2,1fr)}.site-footer .cols{grid-template-columns:1fr}}
@media(max-width:760px){
  .nav{position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 16px;display:none}
  .nav.open{display:flex}
  .nav a{padding:.7rem 0;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
}