*{margin:0;padding:0;box-sizing:border-box}
:root{--desert:#EF7A2D;--sand:#f0e6d8;--evening-desert:#5A1D16;--evening-sand:#4D2C29;--petroleum:#222222;--orange:#EF7A2D;--orange-light:#ff8c42;--brown:#591d13;--brown-dark:#27100c;--cream:#fcfaec;--text:#333;--muted:#6b625f}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);background:#f8f5ef;overflow-x:hidden}
body.lightbox-open{overflow:hidden}
header{position:fixed;top:20px;left:50%;transform:translateX(-50%);width:95%;max-width:1100px;background:rgba(89,29,19,.32);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(244,124,38,.24);border-radius:50px;z-index:1000;box-shadow:0 8px 32px rgba(89,29,19,.3)}
.nav-container{padding:0 30px;display:flex;align-items:center;justify-content:space-between;height:60px}
.logo,.footer-logo{font-size:1.6rem;font-weight:800;text-decoration:none;letter-spacing:2px;text-transform:uppercase;background:linear-gradient(135deg,var(--orange),var(--orange-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:0;margin:0;padding:8px;background:rgba(255,255,255,.1);border-radius:30px;border:1px solid rgba(255,255,255,.1)}
.nav-links a{color:var(--cream);text-decoration:none;font-weight:600;font-size:.82rem;padding:10px 15px;border-radius:25px;transition:.3s cubic-bezier(.4,0,.2,1);text-transform:uppercase;letter-spacing:.45px;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--brown);background:linear-gradient(135deg,var(--orange),var(--orange-light));transform:translateY(-2px);box-shadow:0 4px 12px rgba(244,124,38,.35)}
.nav-toggle{display:none;background:rgba(244,124,38,.2);border:1px solid rgba(244,124,38,.3);color:var(--orange);font-size:1.25rem;cursor:pointer;padding:8px 12px;border-radius:15px}
.gallery-hero {
  position: relative;
  min-height: 74vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background-image: url("../images/heropic-gallery.png");
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.gallery-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(25, 10, 7, 0.10) 0%,
    rgba(39, 16, 12, 0.34) 58%,
    rgba(39, 16, 12, 0.72) 100%
  );
}
.gallery-hero__content{position:relative;z-index:1;width:min(1200px,calc(100% - 40px));margin:0 auto;padding:180px 0 75px;color:var(--cream)}
.eyebrow,.section-kicker{display:inline-block;color:var(--orange-light);font-size:.78rem;font-weight:800;letter-spacing:2.5px;text-transform:uppercase;margin-bottom:12px}
.gallery-hero h1{font-size:clamp(3.5rem,9vw,7rem);line-height:.9;letter-spacing:-4px;margin-bottom:20px}
.gallery-hero p{font-size:clamp(1rem,2vw,1.35rem);max-width:620px;color:rgba(252,250,236,.83)}
.scroll-cue{display:inline-flex;align-items:center;gap:10px;margin-top:34px;color:var(--cream);text-decoration:none;font-weight:700;border-bottom:1px solid rgba(244,124,38,.6);padding-bottom:6px}
.scroll-cue span{color:var(--orange);font-size:1.2rem}
.gallery-section{max-width:1240px;margin:0 auto;padding:105px 24px 120px}
.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:end;margin-bottom:52px}
.section-heading h2{font-size:clamp(2.2rem,5vw,4.2rem);line-height:1;color:var(--brown);letter-spacing:-2px}
.section-heading p{color:var(--muted);font-size:1.05rem;line-height:1.85;max-width:560px}
.gallery-filters{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 38px;padding:12px;background:#f0e6d8;border-radius:24px}.filter-button{flex:1 1 auto;padding:12px;border:1px solid #EF7A2D;border-radius:15px;background:#fff;color:#4D2C29;font:inherit;font-weight:800;cursor:pointer;transition:color .25s ease,background .25s ease,box-shadow .25s ease,transform .25s ease}.filter-button:hover{color:#fff;background:linear-gradient(135deg,#EF7A2D,#ff9a57);box-shadow:0 7px 18px rgba(239,122,45,.28);transform:translateY(-1px)}.filter-button.active,.filter-button.active:hover{color:#f0e6d8;background:#4D2C29;box-shadow:inset 0 -3px #EF7A2D,0 7px 18px rgba(77,44,41,.2);transform:none}.gallery-empty{grid-column:1/-1;min-height:330px;border:1px dashed #5A1D16;border-radius:24px;background:#f0e6d8;display:grid;place-items:center;text-align:center;padding:42px}.gallery-grid{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-flow:row;gap:18px;align-items:start}
.gallery-card{position:relative;grid-column:span 2;height:300px;border:0;border-radius:22px;overflow:hidden;cursor:pointer;background:var(--brown-dark);padding:0;box-shadow:0 15px 35px rgba(89,29,19,.12);isolation:isolate}
.gallery-card--wide{grid-column:span 4}
.gallery-card--tall{grid-row:span 2}
.gallery-card--portrait{grid-column:span 3;width:min(100%,430px);height:573px}
.gallery-card--portrait-left{justify-self:end}
.gallery-card--portrait-right{justify-self:start}
.gallery-grid.gallery-grid--aban{grid-template-columns:1fr}
.gallery-grid.gallery-grid--aban .gallery-card--aban{grid-column:1/-1;width:100%;height:clamp(360px,42vw,620px)}
.gallery-grid.gallery-grid--tehran{grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:300px repeat(2,260px);gap:18px;align-items:stretch}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran{width:100%;height:100%;grid-column:auto;min-width:0;align-self:stretch;justify-self:stretch}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-exterior{grid-column:1 / 13;grid-row:1}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-exterior img{object-position:center 56%}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-featured{grid-column:1 / 8;grid-row:2 / 4}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-meeting{grid-column:8 / 13;grid-row:2}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-main{grid-column:8 / 13;grid-row:3}
.gallery-grid.gallery-grid--tehran .gallery-card--tehran-featured .card-overlay strong{font-size:clamp(1.4rem,2.2vw,2rem)}
.gallery-grid.gallery-grid--esp-installation{grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:repeat(4,230px) 175px;gap:18px;align-items:stretch}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp{width:100%;height:100%;min-width:0;grid-column:auto;grid-row:auto;align-self:stretch;justify-self:stretch}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-site{grid-column:1 / 9;grid-row:1 / 3}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-workshop{grid-column:9 / 13;grid-row:1}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-control{grid-column:9 / 13;grid-row:2}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-portrait{grid-column:1 / 5;grid-row:3 / 5}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-testing{grid-column:5 / 9;grid-row:3}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-climate{grid-column:5 / 9;grid-row:4}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-extraction{grid-column:9 / 13;grid-row:3 / 5}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-assembly{grid-column:3 / 7;grid-row:5}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-preparation{grid-column:7 / 11;grid-row:5}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-no-text::after{display:none}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-extraction .card-overlay strong{font-size:clamp(1.4rem,2vw,1.9rem)}
.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-site .card-overlay strong{font-size:clamp(1.45rem,2.2vw,2rem)}
.gallery-grid.gallery-grid--wp{grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:repeat(3,245px);gap:18px;align-items:stretch}
.gallery-grid.gallery-grid--wp .gallery-card--wp{width:100%;height:100%;min-width:0;grid-column:auto;grid-row:auto;align-self:stretch;justify-self:stretch}
.gallery-grid.gallery-grid--wp .gallery-card--wp-overview{grid-column:1 / 9;grid-row:1 / 3}
.gallery-grid.gallery-grid--wp .gallery-card--wp-climate{grid-column:9 / 13;grid-row:1 / 3}
.gallery-grid.gallery-grid--wp .gallery-card--wp-assembly{grid-column:1 / 6;grid-row:3}
.gallery-grid.gallery-grid--wp .gallery-card--wp-wellhead{grid-column:6 / 13;grid-row:3}
.gallery-grid.gallery-grid--wp .gallery-card--wp-overview .card-overlay strong{font-size:clamp(1.45rem,2.2vw,2rem)}
.gallery-grid.gallery-grid--wp .gallery-card--wp-climate img{object-position:56% center}
.gallery-grid.gallery-grid--wp .gallery-card--wp-assembly img{object-position:center 42%}
.gallery-grid.gallery-grid--wp .gallery-card--wp-wellhead img{object-position:center 43%}
.gallery-grid.gallery-grid--mahshahr{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  grid-template-rows:repeat(4,240px);
  grid-auto-flow:row;
  align-items:stretch;
  width:100%;
}
.gallery-grid.gallery-grid--mahshahr .gallery-card{
  width:100%;
  min-width:0;
  height:100%;
  min-height:0;
  grid-column:auto;
  grid-row:auto;
  justify-self:stretch;
  align-self:stretch;
  aspect-ratio:auto;
}
.gallery-grid.gallery-grid--mahshahr .gallery-card--air{grid-column:1 / 9;grid-row:1}
.gallery-grid.gallery-grid--mahshahr .gallery-card--monitoring{grid-column:1 / 5;grid-row:2 / 4}
.gallery-grid.gallery-grid--mahshahr .gallery-card--qc{grid-column:9 / 13;grid-row:1 / 3}
.gallery-grid.gallery-grid--mahshahr .gallery-card--upgrade{grid-column:5 / 9;grid-row:2}
.gallery-grid.gallery-grid--mahshahr .gallery-card--hall{grid-column:5 / 13;grid-row:3}
.gallery-grid.gallery-grid--mahshahr .gallery-card--unit{grid-column:1 / 9;grid-row:4}
.gallery-grid.gallery-grid--mahshahr .gallery-card--floor{grid-column:9 / 13;grid-row:4}
.gallery-card img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .65s cubic-bezier(.2,.8,.2,1),filter .45s ease}
.gallery-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(39,16,12,.88) 100%);z-index:1;transition:.35s ease}
.gallery-card:hover img{transform:scale(1.055);filter:saturate(1.08)}
.gallery-card:hover::after{background:linear-gradient(180deg,rgba(244,124,38,.06) 20%,rgba(39,16,12,.93) 100%)}
.card-overlay{position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:var(--cream);text-align:left;display:flex;flex-direction:column;transform:translateY(5px);transition:.35s ease}
.card-overlay strong{font-size:1.22rem;line-height:1.2}.card-overlay small{color:var(--orange-light);font-size:.76rem;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;margin-top:7px}
.gallery-card:hover .card-overlay{transform:translateY(0)}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:none}
footer{background:var(--brown-dark);color:var(--cream);padding:48px 24px;border-top:1px solid rgba(244,124,38,.25)}
.footer-inner{max-width:1200px;margin:auto;display:grid;grid-template-columns:auto 1fr auto;gap:30px;align-items:center}.footer-inner p{color:rgba(252,250,236,.7)}.footer-inner span{font-size:.82rem;color:rgba(252,250,236,.55)}
.lightbox{position:fixed;inset:0;z-index:2000;background:rgba(19,7,5,.96);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.25s ease;padding:42px 80px}
.lightbox.open{opacity:1;visibility:visible}.lightbox-content{max-width:min(1200px,88vw);max-height:88vh;margin:0;display:flex;flex-direction:column;align-items:center}.lightbox-content img{max-width:100%;max-height:76vh;object-fit:contain;border-radius:12px;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.lightbox-content figcaption{width:100%;padding-top:18px;color:var(--cream);display:flex;flex-direction:column;gap:4px}.lightbox-content figcaption strong{font-size:1.15rem}.lightbox-content figcaption span{color:rgba(252,250,236,.65);font-size:.92rem}
.lightbox-close,.lightbox-nav{position:absolute;border:0;color:var(--cream);background:rgba(255,255,255,.08);cursor:pointer;transition:.2s ease}.lightbox-close{top:24px;right:28px;width:46px;height:46px;border-radius:50%;font-size:2rem;line-height:1}.lightbox-nav{top:50%;transform:translateY(-50%);width:50px;height:72px;border-radius:18px;font-size:2.4rem}.lightbox-prev{left:22px}.lightbox-next{right:22px}.lightbox-close:hover,.lightbox-nav:hover{background:var(--orange);color:var(--brown)}
@media(max-width:900px){header{top:12px}.nav-container{height:56px;padding:0 18px}.nav-toggle{display:block}.nav-links{position:absolute;top:68px;left:0;right:0;display:none;flex-direction:column;padding:14px;background:rgba(39,16,12,.97);border-radius:22px;box-shadow:0 18px 40px rgba(0,0,0,.28)}.nav-links.open{display:flex}.nav-links a{text-align:center;padding:12px}.gallery-hero{background-attachment:scroll;min-height:66vh;background-position:center center}.section-heading{grid-template-columns:1fr;gap:20px}.gallery-grid{grid-template-columns:repeat(2,1fr)}.gallery-card{grid-column:span 1;height:260px}.gallery-card--wide{grid-column:span 2}.gallery-card--portrait{grid-column:span 1;width:100%;height:480px;justify-self:stretch}.gallery-grid.gallery-grid--mahshahr{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:260px 420px 260px 260px}.gallery-grid.gallery-grid--mahshahr .gallery-card--air{grid-column:1 / 3;grid-row:1}.gallery-grid.gallery-grid--mahshahr .gallery-card--monitoring{grid-column:1;grid-row:2}.gallery-grid.gallery-grid--mahshahr .gallery-card--qc{grid-column:2;grid-row:2}.gallery-grid.gallery-grid--mahshahr .gallery-card--upgrade{grid-column:1;grid-row:3}.gallery-grid.gallery-grid--mahshahr .gallery-card--hall{grid-column:2;grid-row:3}.gallery-grid.gallery-grid--mahshahr .gallery-card--unit{grid-column:1;grid-row:4}.gallery-grid.gallery-grid--mahshahr .gallery-card--floor{grid-column:2;grid-row:4}.footer-inner{grid-template-columns:1fr;text-align:center}.lightbox{padding:60px 16px 90px}.lightbox-nav{top:auto;bottom:20px;width:48px;height:48px;border-radius:50%}.lightbox-prev{left:calc(50% - 60px)}.lightbox-next{right:calc(50% - 60px)}}
@media(max-width:560px){.logo{font-size:1.3rem}.gallery-hero__content{padding-bottom:54px}.gallery-hero h1{letter-spacing:-2px}.gallery-section{padding:76px 14px 90px}.gallery-grid{grid-template-columns:1fr;gap:13px}.gallery-card,.gallery-card--wide{grid-column:span 1;height:255px}.gallery-card--tall{grid-row:span 1}.gallery-card--portrait{height:auto;aspect-ratio:3/4}.gallery-grid.gallery-grid--mahshahr{display:grid;grid-template-columns:1fr;grid-template-rows:none}.gallery-grid.gallery-grid--mahshahr .gallery-card{grid-column:1;grid-row:auto;height:255px}.gallery-grid.gallery-grid--mahshahr .gallery-card--monitoring,.gallery-grid.gallery-grid--mahshahr .gallery-card--qc{height:auto;aspect-ratio:3/4}.gallery-card{border-radius:17px}.card-overlay{left:18px;bottom:17px}.section-heading{margin-bottom:34px}.lightbox-content figcaption{padding-left:4px;padding-right:4px}}
@media(max-width:900px) and (min-width:561px){.gallery-grid.gallery-grid--tehran{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:300px 360px 260px}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-exterior{grid-column:1 / 3;grid-row:1}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-featured{grid-column:1 / 3;grid-row:2}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-meeting{grid-column:1;grid-row:3}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-main{grid-column:2;grid-row:3}}
@media(max-width:900px) and (min-width:561px){.gallery-grid.gallery-grid--esp-installation{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:360px repeat(5,260px)}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp{grid-column:auto;grid-row:auto}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-site{grid-column:1 / 3;grid-row:1}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-workshop{grid-column:1;grid-row:2}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-control{grid-column:2;grid-row:2}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-portrait{grid-column:1;grid-row:3 / 5}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-testing{grid-column:2;grid-row:3}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-climate{grid-column:2;grid-row:4}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-extraction{grid-column:1 / 3;grid-row:5}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-assembly{grid-column:1;grid-row:6}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-preparation{grid-column:2;grid-row:6}}
@media(max-width:900px) and (min-width:561px){.gallery-grid.gallery-grid--wp{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:360px 430px 270px}.gallery-grid.gallery-grid--wp .gallery-card--wp-overview{grid-column:1 / 3;grid-row:1}.gallery-grid.gallery-grid--wp .gallery-card--wp-climate{grid-column:1;grid-row:2}.gallery-grid.gallery-grid--wp .gallery-card--wp-assembly{grid-column:2;grid-row:2}.gallery-grid.gallery-grid--wp .gallery-card--wp-wellhead{grid-column:1 / 3;grid-row:3}}
@media(max-width:560px){.gallery-grid.gallery-grid--tehran{display:grid;grid-template-columns:1fr;grid-template-rows:none}.gallery-grid.gallery-grid--tehran .gallery-card--tehran,.gallery-grid.gallery-grid--tehran .gallery-card--tehran-exterior,.gallery-grid.gallery-grid--tehran .gallery-card--tehran-featured,.gallery-grid.gallery-grid--tehran .gallery-card--tehran-meeting,.gallery-grid.gallery-grid--tehran .gallery-card--tehran-main{grid-column:1;grid-row:auto;height:270px}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-exterior{height:240px}.gallery-grid.gallery-grid--tehran .gallery-card--tehran-featured{height:330px}}
@media(max-width:560px){.gallery-grid.gallery-grid--esp-installation{display:grid;grid-template-columns:1fr;grid-template-rows:none}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-site,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-workshop,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-control,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-extraction,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-testing,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-climate,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-assembly,.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-preparation{grid-column:1;grid-row:auto;height:260px}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-site{height:320px}.gallery-grid.gallery-grid--esp-installation .gallery-card--esp-portrait{grid-column:1;grid-row:auto;height:auto;aspect-ratio:3/4}}
@media(max-width:560px){.gallery-grid.gallery-grid--wp{display:grid;grid-template-columns:1fr;grid-template-rows:none}.gallery-grid.gallery-grid--wp .gallery-card--wp,.gallery-grid.gallery-grid--wp .gallery-card--wp-overview,.gallery-grid.gallery-grid--wp .gallery-card--wp-climate,.gallery-grid.gallery-grid--wp .gallery-card--wp-assembly,.gallery-grid.gallery-grid--wp .gallery-card--wp-wellhead{grid-column:1;grid-row:auto;height:270px}.gallery-grid.gallery-grid--wp .gallery-card--wp-overview{height:310px}.gallery-grid.gallery-grid--wp .gallery-card--wp-climate{height:auto;aspect-ratio:3/4}.gallery-grid.gallery-grid--wp .gallery-card--wp-climate img{object-position:55% center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.gallery-card img{transition:none}}



/* Gallery Hero Eyebrow */
.gallery-hero .eyebrow{
    color:#f0e6d8;
}