:root{
  --parchment:#F9F7F2;
  --obsidian:#1A1A1B;
  --cumin:#C88E45;
  --ironore:#575757;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--parchment);color:var(--obsidian);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:100%;object-fit:cover}
a{text-decoration:none;color:inherit}
section{scroll-margin-top:20px}

/* ===== NAV ===== */
.nav-desktop{position:fixed;top:16px;right:16px;z-index:50;width:50%;max-width:640px;
  background:rgba(249,247,242,.85);backdrop-filter:blur(10px);border:1px solid rgba(26,26,27,.05);
  border-radius:16px;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;
  transition:all .3s ease}
.nav-desktop.scrolled{background:rgba(249,247,242,.95);box-shadow:0 8px 30px rgba(0,0,0,.08);border-color:rgba(26,26,27,.1)}
.nav-brand{font-weight:800;font-size:16px;letter-spacing:-.02em}
.nav-brand span{color:var(--cumin)}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{display:flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;transition:all .3s}
.nav-links a:hover{background:var(--cumin)}
.nav-links svg{width:16px;height:16px}

.nav-mobile{display:none}
@media(max-width:900px){
  .nav-desktop{display:none}
  .nav-mobile{display:flex;position:fixed;top:50%;right:12px;transform:translateY(-50%);z-index:50;
    flex-direction:column;gap:8px;padding:8px;border-radius:16px;
    background:rgba(249,247,242,.9);backdrop-filter:blur(10px);box-shadow:0 8px 30px rgba(0,0,0,.08);border:1px solid rgba(26,26,27,.08)}
  .nav-mobile a{display:flex;flex-direction:column;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;transition:all .3s}
  .nav-mobile a:hover{background:var(--cumin)}
  .nav-mobile svg{width:20px;height:20px}
  .nav-mobile span{font-size:9px;font-weight:500;text-transform:uppercase;letter-spacing:.05em;margin-top:2px}
}

/* ===== TOP BUTTON ===== */
.top-btn{position:fixed;bottom:24px;right:24px;z-index:50;width:48px;height:48px;border-radius:50%;
  background:var(--cumin);color:var(--obsidian);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(0,0,0,.25);opacity:0;transform:translateY(16px);pointer-events:none;transition:all .3s}
.top-btn.show{opacity:1;transform:translateY(0);pointer-events:auto}
.top-btn:hover{transform:scale(1.1)}
@media(max-width:900px){.top-btn{bottom:24px;left:24px;right:auto}}

/* ===== HERO ===== */
.hero{display:grid;grid-template-columns:1fr;min-height:100vh}
@media(min-width:900px){.hero{grid-template-columns:1fr 1fr}}
.hero-img{position:relative;min-height:50vh;order:2;overflow:hidden}
@media(min-width:900px){.hero-img{order:1;min-height:100vh}}
.hero-img .parallax{position:absolute;inset:0;will-change:transform}
.hero-img .overlay{position:absolute;inset:0;background:rgba(26,26,27,.4)}
.hero-img .content{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:32px}
@media(min-width:900px){.hero-img .content{padding:56px}}
.hero-eyebrow{color:rgba(249,247,242,.7);font-size:12px;text-transform:uppercase;letter-spacing:.3em;margin-bottom:12px}
.hero-title{color:var(--parchment);font-weight:800;font-size:48px;line-height:.95;letter-spacing:-.03em}
@media(min-width:900px){.hero-title{font-size:72px}}
.hero-sub{color:rgba(249,247,242,.85);font-size:18px;max-width:420px}
@media(min-width:900px){.hero-sub{font-size:20px}}
.hero-info{background:var(--obsidian);color:var(--parchment);order:1;display:flex;flex-direction:column;justify-content:center;padding:32px;gap:40px}
@media(min-width:900px){.hero-info{order:2;padding:56px}}
.hero-info .eyebrow{color:var(--cumin);font-size:12px;text-transform:uppercase;letter-spacing:.3em}
.branch-list{display:flex;flex-direction:column}
.branch-list .branch{padding:24px 0;border-top:1px solid rgba(249,247,242,.15)}
.branch-list .branch:first-child{border-top:none;padding-top:0}
.branch-list .branch:last-child{padding-bottom:0}
.branch h3{font-size:20px;font-weight:600;margin-bottom:8px;transition:color .3s}
.branch:hover h3{color:var(--cumin)}
.branch .phones{display:flex;flex-wrap:wrap;gap:6px 24px}
.branch .phones a{font-size:32px;font-weight:800;letter-spacing:-.03em;transition:color .3s}
.branch .phones a:hover{color:var(--cumin)}
@media(min-width:900px){.branch .phones a{font-size:48px}}
.hero-cta{display:inline-flex;width:fit-content;align-items:center;gap:8px;border:1px solid var(--cumin);color:var(--cumin);
  padding:12px 24px;border-radius:999px;font-size:14px;text-transform:uppercase;letter-spacing:.15em;transition:all .3s}
.hero-cta:hover{background:var(--cumin);color:var(--obsidian);transform:scale(1.05)}

/* ===== SECTION HEADERS ===== */
.section{padding:96px 24px}
@media(min-width:900px){.section{padding:96px 56px}}
.eyebrow{color:var(--cumin);font-size:12px;text-transform:uppercase;letter-spacing:.3em;margin-bottom:12px}
.h2{font-weight:800;font-size:40px;letter-spacing:-.03em;max-width:640px}
@media(min-width:900px){.h2{font-size:60px}}

/* ===== CATEGORY INDEX ===== */
.cat-index{background:var(--parchment)}
.cat-grid{display:grid;grid-template-columns:1fr;gap:1px;background:rgba(26,26,27,.1);border:1px solid rgba(26,26,27,.1)}
@media(min-width:600px){.cat-grid{grid-template-columns:1fr 1fr}}
@media(min-width:900px){.cat-grid{grid-template-columns:1fr 1fr 1fr}}
.cat-card{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--obsidian);display:block}
.cat-card img{position:absolute;inset:0;transition:transform .7s ease}
.cat-card:hover img{transform:scale(1.1)}
.cat-card .grad{position:absolute;inset:0;background:linear-gradient(to top,rgba(26,26,27,.9),rgba(26,26,27,.1),transparent);transition:all .5s}
.cat-card:hover .grad{backdrop-filter:blur(1px)}
.cat-card .cap{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:24px;transition:transform .5s}
.cat-card:hover .cap{transform:translateY(-8px)}
.cat-card .count{color:var(--cumin);font-size:12px;text-transform:uppercase;letter-spacing:.2em;margin-bottom:4px}
.cat-card h3{color:var(--parchment);font-weight:800;font-size:24px}
.cat-card .arrow{margin-top:12px;color:transparent;font-size:14px;font-weight:500;transition:color .5s}
.cat-card:hover .arrow{color:var(--parchment)}

/* ===== CATEGORY SECTION ===== */
.cat-section{display:flex;flex-direction:column;border-top:1px solid rgba(26,26,27,.1)}
@media(min-width:900px){.cat-section{flex-direction:row}}
.cat-section .imgcol{position:relative;width:100%;height:288px;overflow:hidden}
@media(min-width:900px){.cat-section .imgcol{width:40%;height:auto}}
.cat-section .imgcol .sticky{height:288px;overflow:hidden}
@media(min-width:900px){.cat-section .imgcol .sticky{position:sticky;top:0;height:100vh}}
.cat-section .imgcol img{position:absolute;inset:0;animation:zoomin 1.2s ease-out}
@keyframes zoomin{from{transform:scale(1.08)}to{transform:scale(1)}}
.cat-section .imgcol .secondary{position:absolute;bottom:32px;right:32px;width:112px;height:144px;border:4px solid var(--parchment);box-shadow:0 10px 30px rgba(0,0,0,.3);overflow:hidden;display:none}
@media(min-width:900px){.cat-section .imgcol .secondary{display:block}}
.cat-section .imgcol .tint{position:absolute;inset:0;background:rgba(26,26,27,.2)}
.cat-section .txtcol{background:var(--parchment);padding:64px 24px}
@media(min-width:900px){.cat-section .txtcol{width:60%;padding:64px 64px}}
.cat-section h2{font-weight:800;font-size:40px;letter-spacing:-.03em;margin-bottom:40px}
@media(min-width:900px){.cat-section h2{font-size:60px}}
.cat-section ul{columns:1;column-gap:40px}
@media(min-width:560px){.cat-section ul{columns:2}}
@media(min-width:900px){.cat-section ul{columns:3}}
.cat-section li{color:var(--obsidian);font-size:17px;line-height:1.6;padding:12px 0;border-bottom:1px solid rgba(26,26,27,.1);break-inside:avoid;transition:all .3s;cursor:default}
.cat-section li:hover{color:var(--cumin);transform:translateX(4px)}

/* ===== ABOUT ===== */
.about{background:var(--obsidian);color:var(--parchment)}
.about p.body{color:rgba(249,247,242,.8);font-size:18px;line-height:1.7;margin-bottom:24px;max-width:820px}
.about .mission-grid{display:grid;grid-template-columns:1fr;gap:64px;max-width:820px;margin-bottom:64px}
@media(min-width:900px){.about .mission-grid{grid-template-columns:1fr 1fr}}
.about .mission-grid p{color:rgba(249,247,242,.85);font-size:20px;line-height:1.6}
.values{display:flex;flex-wrap:wrap;gap:12px}
.values span{border:1px solid rgba(200,142,69,.5);color:var(--cumin);font-size:12px;text-transform:uppercase;letter-spacing:.12em;padding:8px 16px;border-radius:999px;transition:all .3s;cursor:default}
.values span:hover{background:var(--cumin);color:var(--obsidian)}

/* ===== INFRA ===== */
.infra .blocks{display:flex;flex-direction:column;gap:24px}
.infra-block{position:relative;aspect-ratio:21/9;overflow:hidden}
.infra-block img{transition:transform 1s ease}
.infra-block:hover img{transform:scale(1.05)}
.infra-block .ov{position:absolute;inset:0;background:linear-gradient(to right,rgba(26,26,27,.85),rgba(26,26,27,.4),transparent);transition:all .5s}
.infra-block:hover .ov{backdrop-filter:blur(2px)}
.infra-block .tx{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;padding:24px;max-width:540px}
@media(min-width:900px){.infra-block .tx{padding:56px}}
.infra-block .lbl{color:var(--cumin);font-size:12px;text-transform:uppercase;letter-spacing:.3em;margin-bottom:8px}
.infra-block h3{color:var(--parchment);font-weight:800;font-size:24px;letter-spacing:-.03em;margin-bottom:12px}
@media(min-width:900px){.infra-block h3{font-size:36px}}
.infra-block p{color:rgba(249,247,242,.85);font-size:14px;line-height:1.6}
@media(min-width:900px){.infra-block p{font-size:16px}}

/* ===== CLIENTS ===== */
.clients{background:var(--obsidian);color:var(--parchment)}
.clients-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(249,247,242,.1);border:1px solid rgba(249,247,242,.1)}
@media(min-width:900px){.clients-grid{grid-template-columns:1fr 1fr 1fr}}
.clients-grid div{background:var(--obsidian);padding:32px 24px;display:flex;align-items:center;justify-content:center;text-align:center;transition:background .3s}
.clients-grid div:hover{background:rgba(249,247,242,.05)}
.clients-grid span{color:rgba(249,247,242,.8);font-size:16px;font-weight:500}
@media(min-width:900px){.clients-grid span{font-size:18px}}

/* ===== FOOTER ===== */
.footer{background:var(--obsidian);color:var(--parchment);padding:96px 24px 128px}
@media(min-width:900px){.footer{padding:96px 56px 128px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:48px;border-top:1px solid rgba(249,247,242,.15);padding-top:48px;margin-top:56px}
@media(min-width:900px){.footer-grid{grid-template-columns:1fr 1fr 1fr}}
.footer h3{font-size:20px;font-weight:600;margin-bottom:16px}
.footer .addr{display:flex;gap:8px;color:rgba(249,247,242,.7);font-size:14px;line-height:1.6;margin-bottom:24px}
.footer .addr svg{width:16px;height:16px;flex-shrink:0;color:var(--cumin);margin-top:2px}
.footer .call{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--cumin);color:var(--cumin);padding:10px 20px;border-radius:999px;font-size:14px;font-weight:500;transition:all .3s;margin-bottom:12px}
.footer .call:hover{background:var(--cumin);color:var(--obsidian)}
.footer .call svg{width:16px;height:16px}
.footer .copy{color:rgba(249,247,242,.4);font-size:12px;margin-top:80px}

/* ===== REVEAL ANIMATION ===== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}