/* =========================================================
   SM Soluções em Segurança e Elétrica
   Tokens: preto/carvão + branco quebrado + dourado
========================================================= */

:root{
  --ink:#0b0b0c;
  --surface:#151517;
  --surface-2:#1d1d20;
  --line:#2b2b2f;
  --paper:#f3f1ea;
  --paper-dim:#b9b6ac;
  --paper-faint:#78766f;
  --gold:#c8973a;
  --gold-bright:#e6b768;
  --gold-ink:#1a1305;

  --font-display:'Oswald', system-ui, sans-serif;
  --font-body:'Work Sans', system-ui, -apple-system, sans-serif;

  --container:1160px;
  --radius:10px;
  --radius-lg:16px;
}

*, *::before, *::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }

a{ color:inherit; }

h1,h2,h3,h4{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.02em;
  margin:0;
  text-wrap:balance;
  font-weight:600;
}
h2{ font-size:clamp(1.5rem,3vw,2rem); }
h3{ font-size:1.2rem; }
h4{ font-size:1rem; }

p{ margin:0; }

.container{
  max-width:var(--container);
  margin:0 auto;
  padding-inline:20px;
  position:relative;
}

section{ padding-block:64px; }
@media (max-width:640px){ section{ padding-block:44px; } }

.section-head{ max-width:640px; margin-bottom:36px; }
.section-head h2{ margin-bottom:10px; }
.section-head p{ color:var(--paper-dim); font-size:1rem; line-height:1.6; }

/* Kicker: short colored lead-in fused into the heading itself, not a
   separate label floating above it. */
.kicker{ color:var(--gold); letter-spacing:.03em; }
.brand-label{
  font-size:.85rem; letter-spacing:.14em; margin-bottom:26px; text-align:center;
  color:var(--gold);
}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 24px; border-radius:8px; font-weight:600; font-size:.92rem;
  text-decoration:none; letter-spacing:.02em; border:1px solid transparent;
  cursor:pointer; transition:transform .15s ease, background .2s ease, border-color .2s ease;
  font-family:var(--font-body);
}
.btn:active{ transform:translateY(1px); }
.btn-gold{ background:var(--gold); color:var(--gold-ink); }
.btn-gold:hover{ background:var(--gold-bright); }
.btn-ghost{ border-color:var(--line); color:var(--paper); background:transparent; }
.btn-ghost:hover{ border-color:var(--gold); color:var(--gold-bright); }
.btn-lg{ padding:16px 30px; font-size:1rem; }

a:focus-visible, button:focus-visible{
  outline:2px solid var(--gold-bright); outline-offset:2px;
}

/* Icon badge shared by service cards and steps: a purpose-drawn glyph
   instead of a generic sequential number. */
.icon-badge{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:9px;
  background:rgba(11,11,12,.78); border:1px solid var(--line);
  color:var(--gold); flex:none;
}
.icon-badge svg{ width:20px; height:20px; stroke:currentColor; fill:none; stroke-width:1.6; }

/* ===== HEADER ===== */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(11,11,12,.88); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; height:80px;
}
.brand-mark{ display:flex; align-items:center; gap:12px; text-decoration:none; flex:none; }
.brand-mark img{ width:44px; height:44px; object-fit:cover; border-radius:8px; border:1px solid var(--line); flex:none; }
.brand-mark .brand-text{ line-height:1.15; white-space:nowrap; }
.brand-mark strong{ display:block; font-family:var(--font-display); font-size:1rem; letter-spacing:.03em; color:var(--paper); }
.brand-mark span{ display:block; font-size:.72rem; color:var(--gold); letter-spacing:.02em; font-weight:600; margin-top:2px; }

.main-nav{ display:flex; align-items:center; gap:30px; }
.main-nav a{
  color:var(--paper-dim); text-decoration:none; font-size:.86rem; letter-spacing:.02em;
  white-space:nowrap;
  transition:color .2s ease;
}
.main-nav a:hover{ color:var(--gold-bright); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.header-actions .btn{ padding:10px 18px; font-size:.82rem; white-space:nowrap; }
.header-actions .btn svg{ width:17px; height:17px; flex:none; }

.nav-toggle{
  display:none; background:none; border:1px solid var(--line); border-radius:8px;
  width:42px; height:42px; color:var(--paper); font-size:1.2rem;
}

@media (max-width:900px){
  .main-nav{
    position:fixed; inset:80px 0 auto 0; background:var(--ink);
    flex-direction:column; align-items:flex-start; gap:0;
    border-bottom:1px solid var(--line);
    padding:8px 20px 20px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .main-nav.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .main-nav a{ padding:12px 0; width:100%; border-bottom:1px solid var(--line); font-size:.95rem; }
  .nav-toggle{ display:block; }
}

/* ===== HERO ===== */
.hero{ position:relative; overflow:hidden; }
.hero-bg{
  position:absolute; inset:-4% -2%; z-index:0;
  background-image:url('../images/hero-ar-condicionado.webp');
  background-size:cover; background-position:center;
  filter:grayscale(55%) brightness(.48) contrast(1.08);
  will-change:transform;
}
.hero-scrim{
  position:absolute; inset:0; z-index:0;
  background:
    linear-gradient(100deg, var(--ink) 0%, var(--ink) 34%, rgba(11,11,12,.82) 52%, rgba(11,11,12,.4) 78%, rgba(11,11,12,.25) 100%),
    linear-gradient(0deg, var(--ink) 0%, rgba(11,11,12,0) 18%, rgba(11,11,12,0) 82%, var(--ink) 100%);
}
.hero .container{
  padding-block:96px 100px; z-index:1;
}
@media (max-width:860px){
  .hero .container{ padding-block:64px 70px; }
  .hero-scrim{ background:
    linear-gradient(180deg, var(--ink) 0%, rgba(11,11,12,.86) 40%, rgba(11,11,12,.7) 100%),
    linear-gradient(0deg, var(--ink) 0%, rgba(11,11,12,0) 14%, rgba(11,11,12,0) 86%, var(--ink) 100%); }
}

.hero-copy{ max-width:720px; }
.hero h1{ font-size:clamp(2.1rem,5vw,3.4rem); line-height:1.08; margin-bottom:22px; }
.hero h1 em{ color:var(--gold); font-style:normal; }
.hero .lede{ color:var(--paper-dim); font-size:1.1rem; line-height:1.6; max-width:52ch; margin-bottom:32px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }

/* ===== BRANDS (glass chips with a hover shine sweep) ===== */
.brands{ padding-block:44px; border-block:1px solid var(--line); position:relative; }
.brand-row{
  display:flex; flex-wrap:wrap; align-items:stretch; justify-content:center;
  gap:16px;
}
.brand-chip{
  position:relative; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  width:168px; height:100px; padding:14px; border-radius:12px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  transition:border-color .25s ease, background .25s ease;
}
.brand-chip:hover{ border-color:#4a3c1c; background:rgba(200,151,58,.07); }
.brand-chip__shine{
  position:absolute; top:-60%; left:-35%; width:35%; height:220%;
  background:linear-gradient(105deg, rgba(230,183,104,0) 0%, rgba(230,183,104,.55) 50%, rgba(230,183,104,0) 100%);
  pointer-events:none; z-index:2;
  transform:translateX(-40px) rotate(20deg);
}
.brand-chip img{
  position:relative; z-index:1;
  max-height:100%; max-width:100%; width:auto; height:auto; object-fit:contain;
  filter:grayscale(1) opacity(.75); transition:filter .25s ease;
}
.brand-chip:hover img{ filter:grayscale(0) opacity(1); }

/* ===== SERVICES ===== */
.services-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
@media (max-width:760px){ .services-grid{ grid-template-columns:1fr; } }

.service-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  overflow:hidden; display:flex; flex-direction:column;
}
.service-card .photo{ aspect-ratio:16/10; overflow:hidden; position:relative; }
.service-card .photo img{ width:100%; height:100%; object-fit:cover; }
.service-card .body{ padding:22px 22px 24px; flex:1; display:flex; flex-direction:column; }
.service-card h3{ font-size:1.12rem; margin-bottom:10px; }
.service-card p{ color:var(--paper-dim); font-size:.92rem; line-height:1.6; flex:1; }
.service-card .cta{ margin-top:16px; color:var(--gold); font-size:.82rem; font-weight:600; text-decoration:none; letter-spacing:.02em; }
.service-card .cta:hover{ color:var(--gold-bright); }
.service-card.lead{ border-color:#3a2f16; }

/* Split-photo card (2 products in one service, e.g. Motores) */
.photo--split{ display:grid; grid-template-columns:1fr 1fr; gap:2px; background:var(--line); }
.photo--split .split-half{ position:relative; overflow:hidden; }
.photo--split .split-half img{ width:100%; height:100%; object-fit:cover; display:block; }
.photo--split .split-tag{
  position:absolute; left:10px; bottom:10px; background:rgba(11,11,12,.78);
  color:var(--paper); font-family:var(--font-display); font-size:.72rem;
  letter-spacing:.03em; text-transform:uppercase; padding:5px 10px; border-radius:6px;
  border:1px solid var(--line);
}

/* Contain-fit photo card (studio product cutout, e.g. Vídeo Porteiro) */
.photo--contain{ background:var(--surface-2); display:flex; align-items:center; justify-content:center; padding:24px; }
.service-card .photo--contain img{ width:auto; height:auto; max-width:88%; max-height:88%; object-fit:contain; }

/* ===== CERTIFICATIONS (3 individual cards) ===== */
.certs-intro{ max-width:680px; margin-bottom:36px; }
.certs-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
@media (max-width:860px){ .certs-grid{ grid-template-columns:1fr; } }
.cert-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  overflow:hidden; display:flex; flex-direction:column;
}
.cert-card .photo{ aspect-ratio:4/3; overflow:hidden; }
.cert-card .photo img{ width:100%; height:100%; object-fit:cover; }
.cert-card .body{ padding:22px; }
.cert-card .hours{
  display:inline-flex; align-items:baseline; gap:4px; color:var(--gold);
  font-family:var(--font-display); font-size:1.6rem; margin-bottom:8px;
}
.cert-card .hours small{ font-size:.85rem; color:var(--paper-dim); font-family:var(--font-body); }
.cert-card h3{ font-size:1.05rem; margin-bottom:8px; }
.cert-card p{ color:var(--paper-dim); font-size:.88rem; line-height:1.55; }

.diff-strip{
  display:flex; flex-wrap:wrap; gap:14px; margin-top:32px;
}
.diff-chip{
  flex:1 1 220px; display:flex; gap:12px; align-items:flex-start;
  background:var(--surface-2); border:1px solid var(--line); border-radius:10px; padding:16px;
}
.diff-chip h4{ font-size:.92rem; margin-bottom:4px; text-transform:none; letter-spacing:0; }
.diff-chip p{ color:var(--paper-dim); font-size:.82rem; line-height:1.5; }

/* ===== FIELD GALLERY ===== */
.field-gallery-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
@media (max-width:860px){ .field-gallery-grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:600px){ .field-gallery-grid{ grid-template-columns:repeat(2,1fr); } }
.field-shot{
  position:relative; aspect-ratio:1/1; border-radius:10px; overflow:hidden;
  border:1px solid var(--line); background:none; padding:0; cursor:zoom-in;
}
.field-shot img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease; }
.field-shot:hover img{ transform:scale(1.06); }
.field-shot .cap{
  position:absolute; left:0; right:0; bottom:0; padding:8px 10px;
  background:linear-gradient(0deg, rgba(0,0,0,.75), transparent);
  color:var(--paper); font-size:.72rem; text-align:left; letter-spacing:.02em;
}

.lightbox{
  position:fixed; inset:0; z-index:100; background:rgba(6,6,7,.92);
  display:flex; align-items:center; justify-content:center; padding:40px 20px;
}
.lightbox[hidden]{ display:none; }
.lightbox img{ max-width:min(90vw,1000px); max-height:82vh; border-radius:10px; border:1px solid var(--line); }
.lightbox .cap{ position:absolute; left:0; right:0; bottom:24px; text-align:center; color:var(--paper-dim); font-size:.85rem; }
.lightbox-close{
  position:absolute; top:20px; right:24px; width:42px; height:42px; border-radius:999px;
  background:var(--surface); border:1px solid var(--line); color:var(--paper);
  font-size:1.3rem; cursor:pointer;
}

/* ===== STEPS ===== */
.steps-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden;
}
@media (max-width:760px){ .steps-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:480px){ .steps-grid{ grid-template-columns:1fr; } }
.step{ background:var(--surface); padding:26px 22px; }
.step .step-head{ display:flex; align-items:center; gap:12px; margin-bottom:10px; }
.step h3{ font-size:.98rem; }
.step p{ color:var(--paper-dim); font-size:.86rem; line-height:1.55; }

/* ===== FAQ ===== */
.faq-list{ max-width:760px; display:flex; flex-direction:column; gap:12px; }
.faq-item{
  background:var(--surface); border:1px solid var(--line); border-left:3px solid var(--line);
  border-radius:10px; transition:border-color .2s ease, background .2s ease;
}
.faq-item[data-open="true"]{ border-left-color:var(--gold); background:var(--surface-2); }
.faq-item button{
  width:100%; text-align:left; background:none; border:none; color:var(--paper);
  padding:18px 20px; font-family:var(--font-body); font-size:1rem; font-weight:600;
  display:flex; justify-content:space-between; align-items:center; gap:16px; cursor:pointer;
}
.faq-item .icon{
  flex:none; width:28px; height:28px; border-radius:50%;
  border:1px solid var(--line); color:var(--gold);
  display:flex; align-items:center; justify-content:center; font-size:1.05rem; line-height:1;
  transition:transform .2s ease, border-color .2s ease, color .2s ease;
}
.faq-item[data-open="true"] .icon{ transform:rotate(45deg); border-color:var(--gold); color:var(--gold-bright); }
.faq-item .answer{
  max-height:0; overflow:hidden; transition:max-height .28s ease;
  color:var(--paper-dim); font-size:.92rem; line-height:1.65;
}
.faq-item .answer p{ padding:0 20px 20px; }

/* ===== FINAL CTA ===== */
.final-cta{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink),var(--surface));
  text-align:center;
  padding-top:64px;
  padding-bottom:64px;
}
.final-cta h2{ font-size:clamp(1.6rem,3.4vw,2.3rem); margin-bottom:14px; }
.final-cta p{ color:var(--paper-dim); margin-bottom:28px; }
.final-cta .contacts{
  display:flex; gap:12px; justify-content:center; flex-wrap:wrap; margin-top:26px;
}
.contact-chip{
  display:inline-flex; align-items:center; gap:9px;
  background:var(--surface); border:1px solid var(--line); border-radius:999px;
  padding:10px 18px; color:var(--paper); text-decoration:none; font-size:.85rem;
  transition:border-color .2s ease, background .2s ease;
}
.contact-chip img{ width:18px; height:18px; object-fit:contain; border-radius:4px; flex:none; }
.contact-chip svg{ color:var(--gold); flex:none; }
a.contact-chip:hover{ border-color:#4a3c1c; background:rgba(200,151,58,.08); color:var(--gold-bright); }
.contact-chip--muted{ color:var(--paper-dim); }

/* ===== FOOTER ===== */
footer.site-footer{ border-top:1px solid var(--line); padding-block:40px 30px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:36px; }
@media (max-width:700px){ .footer-grid{ grid-template-columns:1fr; gap:28px; } }
.footer-brand{ display:flex; gap:12px; align-items:center; margin-bottom:14px; }
.footer-brand img{ width:38px; height:38px; border-radius:8px; border:1px solid var(--line); object-fit:cover; }
.footer-brand strong{ font-family:var(--font-display); font-size:.95rem; }
.site-footer p{ color:var(--paper-dim); font-size:.86rem; line-height:1.6; max-width:38ch; }
.footer-col h3{ font-size:.82rem; letter-spacing:.1em; color:var(--gold); margin-bottom:14px; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a{ color:var(--paper-dim); text-decoration:none; font-size:.88rem; }
.footer-col a:hover{ color:var(--gold-bright); }
.footer-bottom{
  margin-top:32px; padding-top:20px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  color:var(--paper-faint); font-size:.76rem;
  padding-right:190px;
}
@media (max-width:480px){ .footer-bottom{ padding-right:70px; } }
.footer-bottom a{ color:var(--paper-faint); text-decoration:underline; }

/* ===== WHATSAPP FLOAT ===== */
.wa-float{
  position:fixed; right:20px; bottom:20px; z-index:60;
  display:flex; align-items:center; justify-content:center;
  width:58px; height:58px; border-radius:50%;
  background:var(--gold); color:var(--gold-ink); text-decoration:none;
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  transition:transform .15s ease, background .2s ease;
}
.wa-float:hover{ background:var(--gold-bright); transform:translateY(-2px) scale(1.05); }
.wa-float svg{ width:26px; height:26px; flex:none; position:relative; z-index:1; }
.wa-float__ring{
  position:absolute; inset:0; border-radius:50%;
  background:var(--gold); opacity:.55;
  animation:wa-pulse 2.2s ease-out infinite;
}
@keyframes wa-pulse{
  0%{ transform:scale(1); opacity:.55; }
  100%{ transform:scale(1.9); opacity:0; }
}
@media (prefers-reduced-motion: reduce){ .wa-float__ring{ animation:none; display:none; } }