/* =========================================================
   STAR GLASS VIDROS & ALUMÍNIO — design tokens & base styles
   ========================================================= */

:root{
  /* palette: "glass & aluminum" */
  --ink:        #101820;
  --steel-900:  #16222B;
  --steel-700:  #3C4E59;
  --steel-500:  #647985;
  --steel-300:  #A9B7BE;
  --aluminum:   #D7DEE1;
  --mist:       #EEF4F5;
  --paper:      #F7FAFA;
  --white:      #FFFFFF;

  --teal-700:   #0E5B6B;
  --teal-600:   #146B7D;
  --teal-500:   #1B8496;
  --teal-100:   #DCEFF2;

  --copper-600: #C97A2E;
  --copper-500: #E3963E;
  --copper-100: #FBEBD6;

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --maxw: 1180px;
  --radius-sm: 4px;
  --radius-md: 10px;

  --ease: cubic-bezier(.16,.84,.44,1);
  --dur-fast: .25s;
  --dur-med: .55s;
  --dur-slow: 1.1s;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 88px; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--steel-900);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font: inherit; cursor:pointer; }
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; color: var(--ink); font-weight:600; }
p{ margin:0; }

.container{
  width:100%;
  max-width: var(--maxw);
  margin-inline:auto;
  padding-inline: 24px;
}

:focus-visible{
  outline: 3px solid var(--copper-500);
  outline-offset: 3px;
}

.visually-hidden{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* skip link */
.skip-link{
  position:absolute; left:16px; top:-60px;
  background: var(--ink); color:var(--white);
  padding:10px 16px; border-radius: var(--radius-sm);
  z-index: 300; transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus{ top:16px; }

/* =========================
   Section rhythm
   ========================= */
section{ position:relative; }
.section{ padding: 96px 0; }
.section--tight{ padding: 72px 0; }
.section--dark{ background: var(--steel-900); color: var(--aluminum); }
.section--dark h2, .section--dark h3{ color: var(--white); }
.section--mist{ background: var(--mist); }

.section-head{
  max-width: 640px;
  margin-bottom: 48px;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .02em;
  color: var(--teal-600);
  margin-bottom: 14px;
}
.section--dark .eyebrow{ color: var(--copper-500); }
.eyebrow::before{
  content:"";
  width: 26px; height: 2px;
  background: currentColor;
  display:inline-block;
}
.section-head h2{ font-size: clamp(1.7rem, 2.6vw, 2.4rem); line-height:1.15; }
.section-head p{ margin-top:14px; color: var(--steel-700); font-size:1.05rem; max-width: 54ch; }
.section--dark .section-head p{ color: var(--steel-300); }

/* mullion divider — window-frame motif between sections */
.mullion{
  height: 10px;
  background:
    repeating-linear-gradient(
      90deg,
      var(--steel-300) 0 2px,
      transparent 2px 64px
    );
  opacity:.5;
}

/* =========================
   Buttons
   ========================= */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight:600;
  font-size: .98rem;
  border: 1.5px solid transparent;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn svg{ width:18px; height:18px; flex-shrink:0; }
.btn:hover{ transform: translateY(-2px); }
.btn:active{ transform: translateY(0); }

.btn--primary{
  background: var(--copper-500);
  color: var(--ink);
  box-shadow: 0 10px 24px -12px rgba(201,122,46,.65);
}
.btn--primary:hover{ background: var(--copper-600); }

.btn--ghost{
  background: transparent;
  border-color: currentColor;
  color: var(--steel-900);
}
.btn--ghost:hover{ background: rgba(16,24,32,.06); }
.section--dark .btn--ghost{ color: var(--white); }
.section--dark .btn--ghost:hover{ background: rgba(255,255,255,.08); }

.btn--light{
  background: var(--white);
  color: var(--ink);
}
.btn--light:hover{ background: var(--mist); }

.btn--sm{ padding: 10px 18px; font-size:.9rem; }
.btn--block{ width:100%; justify-content:center; }

/* =========================
   Header
   ========================= */
.site-header{
  position: fixed; inset: 0 0 auto 0; z-index: 200;
  padding: 20px 0;
  transition: background var(--dur-med) var(--ease), padding var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), backdrop-filter var(--dur-med) var(--ease);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; gap: 24px; }

.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{ width: 34px; height: 34px; flex-shrink:0; }
.brand-name{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: .01em;
  transition: color var(--dur-med) var(--ease);
}
.brand-name span{ color: var(--copper-500); }

.site-header.is-scrolled{
  background: rgba(16,24,32,.92);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 8px 30px -18px rgba(0,0,0,.5);
}

.main-nav{ display:flex; gap: 30px; }
.main-nav a{
  font-size: .95rem;
  color: var(--aluminum);
  position:relative;
  padding: 4px 0;
  transition: color var(--dur-fast) var(--ease);
}
.main-nav a:hover{ color: var(--white); }
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:-2px; height:2px;
  background: var(--copper-500);
  transition: right var(--dur-fast) var(--ease);
}
.main-nav a:hover::after{ right:0; }

.header-actions{ display:flex; align-items:center; gap:14px; }
.header-phone{
  display:flex; align-items:center; gap:8px;
  color: var(--white); font-size:.95rem; font-weight:600;
}
.header-phone svg{ width:18px; height:18px; color: var(--copper-500); }

.nav-toggle{
  display:none;
  width: 42px; height:42px;
  align-items:center; justify-content:center;
  background: transparent; border: 1.5px solid rgba(255,255,255,.35);
  border-radius: var(--radius-sm); color:var(--white);
}

/* =========================
   Hero
   ========================= */
.hero{
  position:relative;
  background: linear-gradient(160deg, var(--ink) 0%, var(--steel-900) 42%, #133846 100%);
  color: var(--white);
  padding: 168px 0 110px;
  overflow:hidden;
}
.hero::before{
  /* window-mullion texture */
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,0) 85%);
  pointer-events:none;
}
.hero .container{
  position:relative; z-index:2;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items:center;
}
.hero-kicker{
  display:inline-flex; align-items:center; gap:10px;
  background: rgba(227,150,62,.12);
  border: 1px solid rgba(227,150,62,.35);
  color: var(--copper-500);
  padding: 8px 16px;
  border-radius: 999px;
  font-size:.85rem;
  font-weight:600;
  margin-bottom: 26px;
}
.hero-kicker svg{ width:16px; height:16px; }

.hero h1{
  color: var(--white);
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  line-height: 1.1;
  max-width: 16ch;
}
.hero h1 em{
  font-style:normal;
  background: linear-gradient(90deg, var(--copper-500), var(--teal-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede{
  margin-top: 22px;
  font-size: 1.12rem;
  color: var(--steel-300);
  max-width: 46ch;
}
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; margin-top: 36px; }
.hero-microcopy{
  margin-top: 18px;
  font-size:.9rem;
  color: var(--steel-300);
}
.hero-badges{
  display:flex; flex-wrap:wrap; gap: 14px 30px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-badges li{
  display:flex; align-items:center; gap:9px;
  font-size:.9rem; color: var(--aluminum);
}
.hero-badges svg{ width:18px; height:18px; color: var(--teal-500); flex-shrink:0; }

/* hero glass composition (signature load animation) */
.hero-visual{
  position:relative;
  aspect-ratio: 1/1.05;
  display:flex; align-items:center; justify-content:center;
}
.pane-frame{ width:100%; height:100%; }
.pane{
  transform-origin: center;
  opacity:0;
  animation: paneIn var(--dur-slow) var(--ease) forwards;
}
.pane-1{ animation-delay: .05s; }
.pane-2{ animation-delay: .22s; }
.pane-3{ animation-delay: .39s; }
.pane-4{ animation-delay: .56s; }
.pane-glow{ opacity:0; animation: glowIn 1.4s var(--ease) forwards; animation-delay: .9s; }
.pane-sheen{
  animation: sheenSweep 6s ease-in-out infinite;
  animation-delay: 2s;
}

@keyframes paneIn{
  from{ opacity:0; transform: translateY(28px) scale(.94) rotate(-1.5deg); }
  to{ opacity:1; transform: translateY(0) scale(1) rotate(0); }
}
@keyframes glowIn{
  from{ opacity:0; }
  to{ opacity:1; }
}
@keyframes sheenSweep{
  0%{ transform: translateX(-40px) skewX(-12deg); opacity:0; }
  8%{ opacity:.55; }
  30%{ opacity:0; }
  100%{ transform: translateX(220px) skewX(-12deg); opacity:0; }
}

/* =========================
   Trust bar
   ========================= */
.trust-bar{ background: var(--white); border-bottom: 1px solid var(--aluminum); }
.trust-bar .container{
  display:grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; padding-block: 30px;
}
.trust-item{ text-align:center; }
.trust-item strong{
  display:block; font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 2rem); color: var(--teal-700);
}
.trust-item span{ font-size:.85rem; color: var(--steel-700); }

/* =========================
   Services grid
   ========================= */
.services-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--aluminum);
  border: 1px solid var(--aluminum);
}
.service-card{
  background: var(--white);
  padding: 34px 28px;
  display:flex; flex-direction:column; gap:16px;
  transition: background var(--dur-fast) var(--ease);
}
.service-card:hover{ background: var(--teal-100); }
.service-icon{
  width: 46px; height:46px;
  display:flex; align-items:center; justify-content:center;
  border-radius: var(--radius-sm);
  background: var(--mist);
  color: var(--teal-600);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.service-card:hover .service-icon{ background: var(--white); transform: translateY(-3px); }
.service-icon svg{ width:24px; height:24px; }
.service-card h3{ font-size: 1.08rem; }
.service-card p{ color: var(--steel-700); font-size:.94rem; flex-grow:1; }
.service-link{
  display:inline-flex; align-items:center; gap:6px;
  font-size:.88rem; font-weight:600; color: var(--teal-700);
}
.service-link svg{ width:15px; height:15px; transition: transform var(--dur-fast) var(--ease); }
.service-link:hover svg{ transform: translateX(3px); }

/* =========================
   Diferenciais
   ========================= */
.diff-grid{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.diff-card{
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  padding: 30px 26px;
  border-radius: var(--radius-md);
}
.diff-card .num{
  font-family: var(--font-display);
  color: var(--copper-500);
  font-size: .95rem;
  margin-bottom: 16px;
  display:block;
}
.diff-card h3{ font-size: 1.05rem; margin-bottom: 10px; }
.diff-card p{ color: var(--steel-300); font-size: .92rem; }

/* =========================
   Gallery / Lightbox
   ========================= */
.gallery-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.gallery-item{
  position:relative;
  border-radius: var(--radius-md);
  overflow:hidden;
  cursor: zoom-in;
  aspect-ratio: 4/3;
  background: var(--mist);
  border: 1px solid var(--aluminum);
}
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition: transform var(--dur-med) var(--ease);
}
.gallery-item:hover img{ transform: scale(1.06); }
.gallery-caption{
  position:absolute; inset:auto 0 0 0;
  padding: 14px 16px;
  background: linear-gradient(0deg, rgba(16,24,32,.82), transparent);
  color: var(--white);
  font-size: .88rem;
  font-weight:600;
  transform: translateY(6px);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.gallery-item:hover .gallery-caption{ opacity:1; transform: translateY(0); }
.gallery-zoom{
  position:absolute; top:12px; right:12px;
  width: 34px; height:34px;
  border-radius: 50%;
  background: rgba(16,24,32,.55);
  color:var(--white);
  display:flex; align-items:center; justify-content:center;
  opacity:0; transform: scale(.8);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.gallery-zoom svg{ width:16px; height:16px; }
.gallery-item:hover .gallery-zoom{ opacity:1; transform: scale(1); }

/* Lightbox modal */
.lightbox{
  position: fixed; inset:0; z-index: 400;
  display:flex; align-items:center; justify-content:center;
  padding: 24px;
  background: rgba(10,15,20,.92);
  opacity:0; visibility:hidden;
  transition: opacity var(--dur-fast) var(--ease);
}
.lightbox.is-open{ opacity:1; visibility:visible; }
.lightbox-figure{
  position:relative; max-width: 900px; width:100%;
  transform: scale(.92); transition: transform var(--dur-med) var(--ease);
}
.lightbox.is-open .lightbox-figure{ transform: scale(1); }
.lightbox-figure img{
  width:100%; max-height: 74vh; object-fit:contain;
  border-radius: var(--radius-md);
  background: var(--steel-900);
}
.lightbox-caption{ color: var(--aluminum); margin-top: 14px; text-align:center; font-size:.95rem; }
.lightbox-close, .lightbox-prev, .lightbox-next{
  position:absolute;
  width: 46px; height:46px;
  border-radius:50%;
  background: rgba(255,255,255,.1);
  color: var(--white);
  display:flex; align-items:center; justify-content:center;
  border: 1px solid rgba(255,255,255,.2);
  transition: background var(--dur-fast) var(--ease);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover{ background: rgba(255,255,255,.22); }
.lightbox-close{ top:-58px; right:0; }
.lightbox-prev{ top:50%; left: -60px; transform: translateY(-50%); }
.lightbox-next{ top:50%; right: -60px; transform: translateY(-50%); }
.lightbox-close svg, .lightbox-prev svg, .lightbox-next svg{ width:20px; height:20px; }

/* =========================
   Process steps
   ========================= */
.process-list{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
  counter-reset: step;
}
.process-item{ position:relative; padding-top: 56px; }
.process-item .step-num{
  position:absolute; top:0; left:0;
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--teal-100);
  -webkit-text-stroke: 1.5px var(--teal-500);
}
.process-item h3{ font-size: 1.1rem; margin-bottom: 8px; }
.process-item p{ color: var(--steel-700); font-size:.95rem; }
.process-list .process-item:not(:last-child)::after{
  content:"";
  position:absolute; top: 26px; left: 116%;
  width: 20%; height: 1px;
  background: repeating-linear-gradient(90deg, var(--steel-300) 0 6px, transparent 6px 12px);
}

/* =========================
   Testimonials
   ========================= */
.testimonial-track{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.testimonial-card{
  background: var(--white);
  border: 1px solid var(--aluminum);
  border-radius: var(--radius-md);
  padding: 30px;
  display:flex; flex-direction:column; gap:20px;
}
.stars{ display:flex; gap:4px; color: var(--copper-500); }
.stars svg{ width:16px; height:16px; }
.testimonial-card p{ color: var(--steel-900); font-size:1rem; }
.testimonial-author{ display:flex; align-items:center; gap:12px; margin-top:auto; }
.testimonial-avatar{
  width:40px; height:40px; border-radius:50%;
  background: var(--teal-100); color: var(--teal-700);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-display); font-weight:700;
}
.testimonial-author strong{ display:block; font-size:.92rem; }
.testimonial-author span{ font-size:.82rem; color: var(--steel-500); }

/* =========================
   About
   ========================= */
.about-wrap{
  display:grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items:center;
}
.about-figure{
  position:relative;
  border-radius: var(--radius-md);
  overflow:hidden;
  aspect-ratio: 4/5;
  background: linear-gradient(160deg, var(--steel-900), var(--teal-700));
}
.about-figure svg{ width:100%; height:100%; }
.about-copy p + p{ margin-top:16px; }
.about-copy{ color: var(--steel-700); font-size:1.02rem; }
.about-list{ margin-top: 28px; display:flex; flex-direction:column; gap:14px; }
.about-list li{ display:flex; gap:12px; align-items:flex-start; }
.about-list svg{ width:20px; height:20px; color: var(--teal-600); flex-shrink:0; margin-top:2px; }
.about-list strong{ display:block; font-size:.98rem; }
.about-list span{ font-size:.9rem; color: var(--steel-500); }

/* =========================
   Coverage areas
   ========================= */
.coverage-tabs{ display:flex; gap:12px; margin-bottom: 32px; flex-wrap:wrap; }
.coverage-tab{
  padding: 12px 22px;
  border-radius: 999px;
  border: 1.5px solid var(--aluminum);
  background: var(--white);
  font-weight:600; font-size:.92rem;
  color: var(--steel-700);
  transition: all var(--dur-fast) var(--ease);
}
.coverage-tab[aria-selected="true"]{
  background: var(--ink); color: var(--white); border-color: var(--ink);
}
.coverage-panel{ display:none; }
.coverage-panel.is-active{ display:grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.coverage-info h3{ font-size:1.3rem; margin-bottom:14px; }
.coverage-info p{ color: var(--steel-700); margin-bottom: 20px; }
.coverage-chips{ display:flex; flex-wrap:wrap; gap:10px; }
.coverage-chips li{
  padding: 8px 16px; background: var(--mist); border-radius: 999px;
  font-size:.86rem; color: var(--steel-900); border:1px solid var(--aluminum);
}
.coverage-map{ border-radius: var(--radius-md); overflow:hidden; border:1px solid var(--aluminum); min-height:280px; }
.coverage-map iframe{ width:100%; height:100%; min-height:280px; border:0; display:block; }

/* =========================
   FAQ accordion
   ========================= */
.faq-list{ max-width: 780px; }
.faq-item{ border-bottom: 1px solid var(--aluminum); }
.faq-question{
  width:100%;
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding: 22px 4px;
  background:none; border:0; text-align:left;
  font-family: var(--font-display); font-size: 1.02rem; color: var(--ink);
}
.faq-question .icon{
  width:28px; height:28px; flex-shrink:0;
  border-radius:50%; border:1.5px solid var(--steel-300);
  display:flex; align-items:center; justify-content:center;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.faq-question .icon svg{ width:14px; height:14px; transition: transform var(--dur-fast) var(--ease); }
.faq-item[data-open="true"] .faq-question .icon{ background: var(--copper-500); border-color: var(--copper-500); color:var(--ink); }
.faq-item[data-open="true"] .faq-question .icon svg{ transform: rotate(45deg); }
.faq-answer{
  max-height:0; overflow:hidden;
  transition: max-height var(--dur-med) var(--ease);
}
.faq-answer p{ padding: 0 4px 24px; color: var(--steel-700); max-width: 68ch; }

/* =========================
   Contact
   ========================= */
.contact-grid{
  display:grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-bottom: 48px;
}
.location-card{
  background: var(--white);
  border: 1px solid var(--aluminum);
  border-radius: var(--radius-md);
  padding: 32px;
}
.location-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-display); font-size:.8rem;
  color: var(--white); background: var(--teal-700);
  padding: 6px 14px; border-radius: 999px; margin-bottom:18px;
}
.location-tag.is-branch{ background: var(--copper-600); }
.location-card h3{ font-size:1.3rem; margin-bottom: 6px; }
.location-card address{ font-style:normal; color: var(--steel-700); margin-bottom: 18px; }
.location-detail{ display:flex; gap:10px; margin-bottom:12px; font-size:.95rem; color: var(--steel-900); }
.location-detail svg{ width:18px; height:18px; color: var(--teal-600); flex-shrink:0; margin-top:2px; }
.location-actions{ display:flex; gap:12px; margin-top: 22px; flex-wrap:wrap; }

.contact-cta{
  background: linear-gradient(120deg, var(--teal-700), var(--ink));
  border-radius: var(--radius-md);
  padding: 48px;
  color: var(--white);
  display:flex; align-items:center; justify-content:space-between; gap: 30px; flex-wrap:wrap;
}
.contact-cta h3{ color:var(--white); font-size:1.5rem; max-width: 30ch; }
.contact-cta p{ color: var(--teal-100); margin-top:10px; }

/* =========================
   Footer
   ========================= */
.site-footer{ background: var(--ink); color: var(--steel-300); padding: 64px 0 28px; }
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand p{ margin-top:14px; font-size:.92rem; max-width:32ch; }
.footer-col h4{ color: var(--white); font-size:.9rem; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:.9rem; transition: color var(--dur-fast) var(--ease); }
.footer-col a:hover{ color: var(--white); }
.footer-bottom{
  padding-top: 24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:.82rem; color: var(--steel-500);
}
.social-row{ display:flex; gap:12px; margin-top:16px; }
.social-row a{
  width:36px; height:36px; border-radius:50%; border:1px solid rgba(255,255,255,.18);
  display:flex; align-items:center; justify-content:center; transition: background var(--dur-fast) var(--ease);
}
.social-row a:hover{ background: rgba(255,255,255,.1); }
.social-row svg{ width:16px; height:16px; }

/* WhatsApp floating button */
.wa-float{
  position: fixed; right: 22px; bottom: 22px; z-index: 250;
  width: 60px; height:60px; border-radius:50%;
  background: #1FAF54;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 14px 30px -10px rgba(31,175,84,.6);
  animation: floatPulse 3.2s ease-in-out infinite;
}
.wa-float svg{ width:28px; height:28px; color:#fff; }
@keyframes floatPulse{
  0%, 100%{ transform: translateY(0); }
  50%{ transform: translateY(-6px); }
}

/* =========================
   Scroll reveal
   ========================= */
.reveal{
  opacity:0; transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible{ opacity:1; transform:none; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .pane{ animation: none !important; opacity:1 !important; transform:none !important; }
  .pane-sheen{ animation:none !important; }
  .reveal{ opacity:1 !important; transform:none !important; transition:none !important; }
  .wa-float{ animation:none !important; }
  *{ scroll-behavior:auto !important; }
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 1024px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-visual{ max-width: 420px; margin-inline:auto; order:-1; }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .diff-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .testimonial-track{ grid-template-columns: 1fr; }
  .process-list{ grid-template-columns: 1fr; gap: 40px; }
  .process-list .process-item::after{ display:none; }
  .about-wrap{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .coverage-panel.is-active{ grid-template-columns: 1fr; }
  .trust-bar .container{ grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 760px){
  .main-nav, .header-phone{ display:none; }
  .nav-toggle{ display:flex; }
  .site-header.is-open .main-nav{
    display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0;
    background: rgba(16,24,32,.98); padding: 24px; gap: 18px;
  }
  .hero{ padding: 140px 0 80px; }
  .services-grid{ grid-template-columns: 1fr; }
  .diff-grid{ grid-template-columns: 1fr; }
  .gallery-grid{ grid-template-columns: 1fr 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .lightbox-prev{ left:0; top:auto; bottom:-58px; transform:none; }
  .lightbox-next{ right:0; top:auto; bottom:-58px; transform:none; }
  .lightbox-close{ top:-52px; }
  .contact-cta{ flex-direction:column; align-items:flex-start; }
}