/* ============================================================
   NAZAR Roofing — stylesheet
   ============================================================ */

:root{
  --ink:#181614;
  --ink-soft:#4a453f;
  --paper:#faf8f4;
  --paper-alt:#f1ede5;
  --line:#e4ddd0;
  --gold:#b8863b;
  --gold-deep:#8f6526;
  --gold-light:#e8cf9c;
  --white:#ffffff;

  --font-body: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(24,22,20,.06);
  --shadow-md: 0 12px 32px rgba(24,22,20,.10);
  --shadow-lg: 0 24px 60px rgba(24,22,20,.18);
  --container: 1180px;
}

@media (prefers-color-scheme: dark){
  :root{
    --ink:#f3efe7;
    --ink-soft:#c9c2b4;
    --paper:#161412;
    --paper-alt:#1d1a17;
    --line:#332e28;
    --white:#211e1a;
    --gold-light:#e8cf9c;
  }
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3{ font-family:var(--font-display); font-weight:600; line-height:1.15; margin:0; color:var(--ink); }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:transform .22s ease, box-shadow .22s ease, background-color .22s ease, color .22s ease, border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--gold-light),var(--gold) 55%,var(--gold-deep));
  color:#231a0c;
  box-shadow:0 6px 18px rgba(184,134,59,.26);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 10px 24px rgba(184,134,59,.36); }
.btn-sm{ padding:10px 20px; font-size:14px; }
.btn-ghost-light{
  color:#fff;
  border-color:rgba(255,255,255,.55);
}
.btn-ghost-light:hover{ background:rgba(255,255,255,.12); border-color:#fff; }
.btn-block{ width:100%; }
.btn-whatsapp{
  margin-top:28px;
  background:rgba(255,255,255,.04);
  color:#fff;
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
}
.btn-whatsapp svg{ color:#25d366; }
.btn-whatsapp:hover{
  transform:translateY(-2px);
  border-color:rgba(37,211,102,.55);
  background:rgba(37,211,102,.1);
}

/* ---------- Eyebrow / section head ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:13px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--gold-deep);
  margin:0 0 18px;
}
.eyebrow::before{
  content:'';
  width:30px;
  height:1px;
  background:currentColor;
  opacity:.5;
}
@media (prefers-color-scheme: dark){ .eyebrow{ color:var(--gold-light);} }
.eyebrow-light{ color:var(--gold-light); }

.section-head{
  max-width:640px;
  margin:0 0 56px;
}
.section-head h2{ font-size:clamp(28px,4vw,40px); margin-bottom:16px; }
.section-sub{ color:var(--ink-soft); font-size:17px; }

.section{ padding:96px 0; }
.section-alt{ background:var(--paper-alt); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:200;
  background:rgba(250,248,244,.82);
  backdrop-filter:blur(14px) saturate(160%);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid transparent;
  transition:background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
@media (prefers-color-scheme: dark){
  .site-header{ background:rgba(22,20,18,.78); }
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 4px 24px rgba(0,0,0,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
  gap:24px;
}
.brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.brand-logo{ width:38px; height:38px; border-radius:9px; object-fit:cover; }
.brand-name{ font-family:var(--font-display); font-weight:600; font-size:20px; letter-spacing:.02em; }

.main-nav{ display:flex; gap:34px; margin:0 auto; }
.main-nav a{
  font-size:15px; font-weight:600; color:var(--ink-soft);
  position:relative; padding:4px 0;
  transition:color .2s ease;
}
.main-nav a:hover{ color:var(--ink); }
.main-nav a::after{
  content:''; position:absolute; left:0; right:0; bottom:-4px; height:2px;
  background:var(--gold); transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.main-nav a:hover::after{ transform:scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:14px; flex-shrink:0; }

/* language switch */
.lang-switch{ position:relative; }
.lang-current{
  display:flex; align-items:center; gap:6px;
  background:var(--white); border:1px solid var(--line);
  padding:9px 12px; border-radius:999px;
  font-weight:700; font-size:13px; letter-spacing:.03em; color:var(--ink);
}
.lang-current svg{ transition:transform .2s ease; color:var(--ink-soft); }
.lang-switch.open .lang-current svg{ transform:rotate(180deg); }
.lang-options{
  position:absolute; top:calc(100% + 8px); right:0;
  background:var(--white); border:1px solid var(--line);
  border-radius:12px; box-shadow:var(--shadow-md);
  min-width:180px; padding:6px;
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.lang-switch.open .lang-options{ opacity:1; visibility:visible; transform:translateY(0); }
.lang-options li{
  display:flex; align-items:center; gap:10px;
  padding:10px 12px; border-radius:8px; font-size:14px; font-weight:600;
  cursor:pointer; transition:background-color .15s ease;
}
.lang-options li:hover{ background:var(--paper-alt); }
.lang-options li.active{ color:var(--gold-deep); }
.lang-options .flag{ font-size:16px; }

.nav-toggle{
  display:none;
  flex-direction:column; justify-content:center; gap:5px;
  width:38px; height:38px; background:none; border:none;
}
.nav-toggle span{ width:100%; height:2px; background:var(--ink); border-radius:2px; transition:transform .25s ease, opacity .25s ease; }
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  padding-top:76px;
  overflow:hidden;
}
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-img, .hero-video{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
@media (prefers-reduced-motion: reduce){
  .hero-video{ display:none; }
}
.hero-overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(0deg, rgba(10,8,6,.92) 0%, rgba(10,8,6,.55) 45%, rgba(10,8,6,.35) 75%, rgba(10,8,6,.55) 100%);
}
.hero-inner{ position:relative; z-index:1; color:#fff; padding-bottom:96px; padding-top:60px; }
.hero-title{
  font-size:clamp(40px,7vw,74px);
  color:#fff;
  max-width:780px;
  margin:0 0 22px;
}
.hero-title em{
  font-style:normal;
  display:block;
  background:linear-gradient(100deg,var(--gold-light),var(--gold) 60%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-subtitle{
  font-size:19px; max-width:560px; color:rgba(255,255,255,.86);
  margin-bottom:36px;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:16px; margin-bottom:64px; }

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  max-width:820px;
  padding-top:36px;
  border-top:1px solid rgba(255,255,255,.22);
}
.hero-stat{ display:flex; flex-direction:column; gap:4px; }
.hero-stat-num{ font-family:var(--font-display); font-size:clamp(24px,3vw,32px); font-weight:600; color:var(--gold-light); }
.hero-stat-label{ font-size:13px; color:rgba(255,255,255,.75); line-height:1.35; }

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.service-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease;
}
.service-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.service-card-img{ height:190px; overflow:hidden; }
.service-card-img img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.service-card:hover .service-card-img img{ transform:scale(1.08); }
.service-card-body{ padding:28px 26px 30px; }
.service-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width:48px; height:48px; border-radius:12px;
  background:var(--paper-alt); color:var(--gold-deep);
  margin-bottom:18px;
}
.service-icon svg{ width:24px; height:24px; }
.service-card-body h3{ font-size:21px; margin-bottom:14px; }
.service-card-body ul{ display:flex; flex-direction:column; gap:9px; }
.service-card-body li{
  font-size:14.5px; color:var(--ink-soft); position:relative; padding-left:20px;
}
.service-card-body li::before{
  content:''; position:absolute; left:0; top:8px; width:7px; height:7px; border-radius:50%;
  background:var(--gold);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:64px;
  align-items:center;
}
.about-media{ position:relative; }
.about-media img{
  width:100%; aspect-ratio:4/5; object-fit:cover; border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
}
.about-media-caption{
  position:absolute; left:24px; bottom:24px; right:24px;
  background:rgba(24,22,20,.72);
  backdrop-filter:blur(10px);
  color:#fff; border-radius:12px; padding:14px 18px;
  display:flex; flex-direction:column; gap:2px;
}
.about-media-caption strong{ font-family:var(--font-display); font-size:16px; }
.about-media-caption span{ font-size:12.5px; color:var(--gold-light); }

.about-content h2{ font-size:clamp(28px,4vw,38px); margin-bottom:20px; }
.about-bio{ color:var(--ink-soft); font-size:16.5px; margin-bottom:22px; }
.about-quote{
  margin:0 0 26px; padding:18px 22px;
  border-left:3px solid var(--gold);
  font-family:var(--font-display); font-size:19px; font-style:italic;
  background:var(--paper-alt); border-radius:0 10px 10px 0;
}
.about-achv{ display:grid; grid-template-columns:1fr 1fr; gap:14px 20px; }
.about-achv li{
  font-size:14.5px; font-weight:600; color:var(--ink);
  padding-left:26px; position:relative;
}
.about-achv li::before{
  content:'✓'; position:absolute; left:0; top:0;
  width:18px; height:18px; border-radius:50%;
  background:var(--gold); color:#fff; font-size:11px;
  display:flex; align-items:center; justify-content:center;
}

/* ============================================================
   WHY CHOOSE US
   ============================================================ */
.why-section{ position:relative; }
.why-media{ height:340px; overflow:hidden; }
.why-media img{ width:100%; height:100%; object-fit:cover; }
.why-section .container{
  background:var(--white);
  border-radius:var(--radius);
  margin-top:-80px;
  position:relative;
  padding:56px 40px 48px;
  box-shadow:var(--shadow-lg);
}
@media (prefers-color-scheme: dark){ .why-section .container{ background:var(--paper-alt); } }
.why-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  margin-bottom:40px;
}
.why-card{ border-top:2px solid var(--line); padding-top:22px; }
.why-num{ font-family:var(--font-display); font-size:15px; color:var(--gold); font-weight:600; }
.why-card h3{ font-size:18px; margin:10px 0 10px; }
.why-card p{ font-size:14.5px; color:var(--ink-soft); }
.why-quote{
  text-align:center; font-family:var(--font-display); font-style:italic;
  font-size:22px; color:var(--ink); padding-top:24px; border-top:1px solid var(--line);
}

/* ============================================================
   PROCESS
   ============================================================ */
.process-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px 48px;
}
.process-step{ display:flex; gap:20px; }
.process-num{
  font-family:var(--font-display); font-size:26px; font-weight:600;
  color:var(--gold); flex-shrink:0; width:48px;
}
.process-step h3{ font-size:18.5px; margin-bottom:8px; }
.process-step p{ font-size:14.5px; color:var(--ink-soft); }

/* ============================================================
   YOUR PART / OUR COMMITMENT
   ============================================================ */
.part-grid{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:28px;
}
.part-card{
  border-radius:var(--radius);
  padding:38px 34px;
}
.part-card-you{
  background:linear-gradient(158deg,#221e19 0%,#15120f 100%);
  color:#f3efe7;
}
.part-card-you h3{ color:#fff; font-size:23px; margin-bottom:22px; }
.part-card-you li{
  font-size:15px; padding:14px 0; border-top:1px solid rgba(255,255,255,.14);
  padding-left:26px; position:relative;
}
.part-card-you li:first-child{ border-top:none; }
.part-card-you li::before{
  content:''; position:absolute; left:0; top:22px; width:8px; height:8px; border-radius:50%;
  background:var(--gold-light);
}
.part-card-we{
  background:var(--paper-alt);
  border:1px solid var(--line);
  overflow:hidden;
  padding:0;
  display:flex; flex-direction:column;
}
.part-card-img{ height:220px; overflow:hidden; }
.part-card-img img{ width:100%; height:100%; object-fit:cover; }
.part-card-we h3{ font-size:23px; margin:28px 34px 14px; }
.part-card-we p{ font-size:15.5px; color:var(--ink-soft); margin:0 34px 30px; }

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  grid-auto-rows:240px;
  gap:16px;
}
.gallery-item{
  border:none; padding:0; border-radius:12px; overflow:hidden;
  position:relative; background:none;
}
.gallery-item:nth-child(1){ grid-column:span 2; grid-row:span 2; }
.gallery-item img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.gallery-item::after{
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(0,0,0,.35), transparent 45%);
  opacity:0; transition:opacity .3s ease;
}
.gallery-item:hover::after{ opacity:1; }
.gallery-item:hover img{ transform:scale(1.06); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section{ background:var(--paper-alt); }
.contact-head{ max-width:600px; margin:0 auto 48px; text-align:center; }
.contact-head .eyebrow{ justify-content:center; }
.contact-head .section-sub{ margin-inline:auto; }

/* one elegant card: dark info aside + light form */
.contact-card{
  display:grid;
  grid-template-columns:0.82fr 1.18fr;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:calc(var(--radius) + 8px);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}

/* dark concierge panel */
.contact-aside{
  position:relative;
  isolation:isolate;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:30px;
  padding:52px 44px;
  background:linear-gradient(158deg,#221e19 0%,#15120f 100%);
  color:#f3efe7;
}
.contact-aside::before{
  content:'';
  position:absolute; z-index:-1;
  top:-22%; right:-18%; width:340px; height:340px;
  background:radial-gradient(circle, rgba(184,134,59,.22), transparent 66%);
  pointer-events:none;
}
.contact-aside::after{
  content:'';
  position:absolute; z-index:-1;
  bottom:-30%; left:-24%; width:300px; height:300px;
  background:radial-gradient(circle, rgba(232,207,156,.08), transparent 70%);
  pointer-events:none;
}
.contact-list{ display:flex; flex-direction:column; gap:24px; }
.contact-list li{ display:flex; align-items:center; gap:16px; }
.contact-icon{
  width:48px; height:48px; flex-shrink:0; border-radius:13px;
  display:flex; align-items:center; justify-content:center;
  background:rgba(232,207,156,.09);
  border:1px solid rgba(232,207,156,.24);
  color:var(--gold-light);
}
.contact-icon svg{ width:20px; height:20px; }
.contact-label{
  display:block; font-size:11px; font-weight:600;
  letter-spacing:.14em; text-transform:uppercase;
  color:rgba(243,239,231,.5); margin-bottom:4px;
}
.contact-list a{ font-weight:600; font-size:15.5px; color:#fff; transition:color .2s ease; overflow-wrap:anywhere; }
.contact-list a:hover{ color:var(--gold-light); }
.contact-list li > div{ min-width:0; }
.contact-aside .btn-whatsapp{ margin-top:0; align-self:flex-start; }

/* light form */
.contact-form{ padding:48px 44px; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:0 24px; }
.form-grid .form-row:first-child{ grid-column:1 / -1; }
.form-row{ margin-bottom:20px; }
.form-row label{
  display:block; font-size:13px; font-weight:600; margin-bottom:8px;
  letter-spacing:.01em; color:var(--ink-soft);
}
.form-row input, .form-row textarea{
  width:100%; padding:14px 16px; border-radius:11px;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink); font-family:inherit; font-size:15px; resize:vertical;
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.form-row input:focus, .form-row textarea:focus{
  outline:none; border-color:var(--gold);
  background:var(--white);
  box-shadow:0 0 0 3px rgba(184,134,59,.13);
}
.form-row input::placeholder, .form-row textarea::placeholder{ color:var(--ink-soft); opacity:.5; }
.contact-form .btn-block{ margin-top:6px; }
.form-note{ text-align:center; font-size:13px; color:var(--ink-soft); margin-top:14px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  background:#0d0b09;
  color:rgba(243,239,231,.7);
  padding:0;
}
/* gold hairline separating contact from footer */
.site-footer::before{
  content:'';
  position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(184,134,59,.5) 22%, rgba(232,207,156,.85) 50%, rgba(184,134,59,.5) 78%, transparent);
}
/* soft warm glow at the top center */
.site-footer::after{
  content:'';
  position:absolute; top:-46%; left:50%; transform:translateX(-50%);
  width:920px; height:520px; z-index:-1;
  background:radial-gradient(ellipse at center, rgba(184,134,59,.11), transparent 68%);
  pointer-events:none;
}

.footer-top{
  display:grid;
  grid-template-columns:1.7fr 1fr 1.3fr;
  gap:56px;
  padding:84px 24px 30px;
}
.footer-brand{ display:flex; flex-direction:column; align-items:flex-start; gap:18px; max-width:360px; }
.footer-logo{
  width:58px; height:58px; border-radius:15px;
  display:flex; align-items:center; justify-content:center; overflow:hidden;
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.01));
  border:1px solid rgba(232,207,156,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 6px 18px rgba(0,0,0,.3);
  transition:transform .25s ease, border-color .25s ease;
}
.footer-logo img{ width:100%; height:100%; object-fit:cover; }
.footer-logo:hover{ transform:translateY(-2px); border-color:rgba(232,207,156,.55); }
.footer-brand .brand-name{ color:#fff; font-size:25px; letter-spacing:.06em; }
.footer-tagline{ font-size:14px; line-height:1.65; color:rgba(243,239,231,.48); }

.footer-col{ display:flex; flex-direction:column; gap:13px; }
.footer-col-title{
  font-size:11px; font-weight:700; letter-spacing:.22em; text-transform:uppercase;
  color:var(--gold-light); margin-bottom:6px;
}
.footer-nav{ display:flex; flex-direction:column; gap:12px; }
.footer-nav a, .footer-contact{
  font-size:14.5px; color:rgba(243,239,231,.6); width:fit-content;
  transition:color .2s ease, transform .2s ease;
}
.footer-nav a:hover, .footer-contact:hover{ color:var(--gold-light); transform:translateX(3px); }
.footer-contact-muted, .footer-contact-muted:hover{ color:rgba(243,239,231,.4); transform:none; cursor:default; }

/* oversized brand watermark — luxury signature */
.footer-wordmark{
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(90px,19vw,250px);
  line-height:.82;
  letter-spacing:.05em;
  text-align:center;
  color:transparent;
  background:linear-gradient(180deg, rgba(232,207,156,.11), rgba(232,207,156,0) 92%);
  -webkit-background-clip:text; background-clip:text;
  margin:0 24px -0.12em;
  user-select:none; pointer-events:none;
}

.footer-bottom{
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  padding:22px 24px 28px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px; color:rgba(243,239,231,.42);
}
.footer-backtop{
  display:inline-flex; align-items:center; gap:8px;
  font-size:11.5px; font-weight:700; letter-spacing:.14em; text-transform:uppercase;
  color:rgba(243,239,231,.58); transition:color .2s ease;
}
.footer-backtop svg{ transition:transform .25s ease; }
.footer-backtop:hover{ color:var(--gold-light); }
.footer-backtop:hover svg{ transform:translateY(-3px); }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox{
  position:fixed; inset:0; z-index:500;
  background:rgba(8,7,6,.96);
  opacity:0; visibility:hidden; transition:opacity .25s ease, visibility .25s ease;
}
.lightbox.open{ opacity:1; visibility:visible; }

.lightbox-track{
  display:flex;
  width:100%; height:100%;
  overflow-x:auto; overflow-y:hidden;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  overscroll-behavior-x:contain;
}
.lightbox-track::-webkit-scrollbar{ display:none; }

.lightbox-slide{
  flex:0 0 100%;
  width:100%; height:100%;
  display:flex; align-items:center; justify-content:center;
  scroll-snap-align:center; scroll-snap-stop:always;
  box-sizing:border-box;
  padding:80px 96px;
}
.lightbox-slide img{
  max-width:100%; max-height:100%;
  object-fit:contain;
  border-radius:10px;
  box-shadow:var(--shadow-lg);
  user-select:none;
}

.lightbox-close{
  position:absolute; top:24px; right:28px; z-index:2;
  width:46px; height:46px; border-radius:50%;
  background:rgba(255,255,255,.1); color:#fff; border:none; font-size:28px; line-height:1;
  transition:background-color .2s ease;
}
.lightbox-close:hover{ background:rgba(255,255,255,.2); }

.lightbox-nav{
  position:absolute; top:50%; z-index:2; transform:translateY(-50%);
  width:52px; height:52px; border-radius:50%;
  background:rgba(255,255,255,.1); color:#fff; border:none;
  display:flex; align-items:center; justify-content:center;
  transition:background-color .2s ease, opacity .2s ease, transform .2s ease;
}
.lightbox-nav:hover{ background:rgba(255,255,255,.2); }
.lightbox-nav:disabled{ opacity:0; pointer-events:none; }
.lightbox-prev{ left:20px; }
.lightbox-next{ right:20px; }

.lightbox-counter{
  position:absolute; left:50%; bottom:26px; z-index:2; transform:translateX(-50%);
  font-size:12.5px; font-weight:600; letter-spacing:.14em;
  color:rgba(255,255,255,.6);
  pointer-events:none;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1000px){
  .services-grid{ grid-template-columns:1fr; }
  .about-grid{ grid-template-columns:1fr; }
  .about-media img{ aspect-ratio:460/326; }
  .about-media-caption{ padding:10px 14px; }
  .about-media-caption strong{ font-size:14px; }
  .about-media-caption span{ font-size:11.5px; }
  .why-grid{ grid-template-columns:1fr 1fr; }
  .process-list{ grid-template-columns:1fr; }
  .part-grid{ grid-template-columns:1fr; }
  .contact-card{ grid-template-columns:1fr; }
  .contact-aside{ padding:44px 36px; }
  .hero-stats{ grid-template-columns:repeat(2,1fr); row-gap:28px; }
  .footer-top{ grid-template-columns:1fr 1fr; gap:40px 32px; }
  .footer-brand{ grid-column:1 / -1; }
}

@media (max-width:820px){
  .main-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .header-actions .btn-sm{ display:none; }

  .site-header.mobile-open .main-nav{
    display:flex; flex-direction:column; gap:0;
    position:fixed; top:76px; left:0; right:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:8px 24px 20px; box-shadow:var(--shadow-md);
  }
  .site-header.mobile-open .main-nav a{ padding:14px 0; border-bottom:1px solid var(--line); }

  .gallery-grid{ grid-template-columns:1fr 1fr; grid-auto-rows:180px; }
  .gallery-item:nth-child(1){ grid-column:span 2; grid-row:span 1; }
}

@media (max-width:600px){
  .section{ padding:64px 0; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .why-grid{ grid-template-columns:1fr; }
  .why-section .container{ padding:36px 22px 32px; margin-top:-48px; }
  .about-achv{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:1fr; grid-auto-rows:220px; }
  .gallery-item:nth-child(1){ grid-column:span 1; }
  .footer-top{ grid-template-columns:1fr; gap:32px; padding-top:60px; }
  .footer-bottom{ justify-content:center; text-align:center; }
  .hero-stats{ grid-template-columns:1fr 1fr; }
  .form-grid{ grid-template-columns:1fr; }
  .contact-form{ padding:36px 26px; }
  .contact-aside{ padding:40px 26px; gap:26px; }
  .contact-list{ gap:20px; }
  .contact-list a{ font-size:14.5px; }
  .contact-icon{ width:44px; height:44px; }

  .lightbox-slide{ padding:70px 20px; }
  .lightbox-nav{ width:42px; height:42px; }
  .lightbox-prev{ left:8px; }
  .lightbox-next{ right:8px; }
  .lightbox-close{ top:14px; right:16px; }
}