/* ===== Exir Tejarat Atlas — shared design system ===== */
:root{
  --jade:#0B5D52; --jade-deep:#063b34; --jade-d:#084a41; --teal:#28a09a;
  --orange:#E66A1F; --orange-d:#c85512; --gold:#fea808;
  --ink:#1d2426; --ink-soft:#5a6671; --line:#e3e7ea; --bg:#f6f8f8; --white:#fff;
  --panel:#0a2422;
  --head:'Montserrat',sans-serif; --mono:'Roboto Condensed',sans-serif; --fa:'Vazirmatn',sans-serif;
  --maxw:1200px; --radius:16px;
  --shadow:0 1px 3px rgba(16,40,37,.06),0 8px 30px rgba(16,40,37,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);line-height:1.85;-webkit-font-smoothing:antialiased}
body.lang-fa{font-family:var(--fa);direction:rtl}
body.lang-en{font-family:var(--head);direction:ltr}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section{position:relative}

/* language visibility */
.lang-fa .en-only{display:none!important}
.lang-en .fa-only{display:none!important}

/* layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:3px;color:var(--orange-d);font-weight:700;text-transform:uppercase}
.lang-fa .eyebrow{letter-spacing:1px}
h1,h2,h3{line-height:1.25;color:var(--ink)}
.lang-en h1,.lang-en h2,.lang-en h3{font-weight:800}
.section{padding:90px 0}
.section-head{max-width:720px;margin-bottom:46px}
.section-head h2{font-size:clamp(26px,4vw,42px);margin-top:12px}
.section-head p{color:var(--ink-soft);font-size:17px;margin-top:14px}
.center{text-align:center;margin-inline:auto}

/* ===== Header ===== */
header.site{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:42px;width:auto}
.brand .bt{font-family:var(--head);font-weight:800;font-size:15px;color:var(--jade);line-height:1.05}
.brand .bt small{display:block;font-family:var(--mono);font-weight:500;font-size:8.5px;letter-spacing:2.5px;color:var(--orange)}
.menu{display:flex;align-items:center;gap:4px}
.menu a{font-size:14.5px;font-weight:600;padding:10px 14px;border-radius:9px;color:var(--ink);transition:.18s}
.menu a:hover{background:var(--bg);color:var(--jade)}
.menu a.active{color:var(--jade)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang-btn{font-family:var(--mono);font-weight:700;font-size:13px;letter-spacing:1px;border:1px solid var(--line);background:var(--white);
  color:var(--ink);padding:9px 14px;border-radius:9px;cursor:pointer;transition:.18s}
.lang-btn:hover{border-color:var(--jade);color:var(--jade)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;padding:12px 22px;border-radius:11px;cursor:pointer;border:none;transition:.2s;font-family:inherit}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 26px rgba(230,106,31,.32)}
.btn-primary:hover{background:var(--orange-d);transform:translateY(-2px)}
.btn-jade{background:var(--jade);color:#fff}
.btn-jade:hover{background:var(--jade-d)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--jade);color:var(--jade)}
.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 75% 20%,#0d6e62,var(--jade-deep) 55%,#04231f);color:#eafaf7}
.hero .wrap{position:relative;z-index:2;padding-top:90px;padding-bottom:96px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.hero h1{color:#fff;font-size:clamp(32px,5vw,56px);font-weight:800}
.hero h1 b{color:var(--gold)}
.hero p.lead{margin-top:20px;font-size:clamp(16px,2vw,19px);color:#cfe6e2;max-width:560px}
.hero .cta-row{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{margin-top:30px;display:flex;gap:10px;flex-wrap:wrap}
.hero-badges span{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:#bfe0db;border:1px solid rgba(255,255,255,.22);padding:6px 13px;border-radius:20px}
.hero-art{position:relative;height:360px}
.hero-scene{position:absolute;inset:0;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(160deg,#0d4f47,#04302b)}
.hero-pipes{position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 60px,rgba(255,255,255,.05) 60px 62px)}
.hero-streak{position:absolute;left:0;width:100%;height:3px;top:42%;background:linear-gradient(90deg,transparent,var(--gold),transparent);animation:streak 6s linear infinite}
.hero-streak.b{top:64%;animation-duration:8s;animation-delay:1s;background:linear-gradient(90deg,transparent,var(--orange),transparent)}
.hero:after{content:'';position:absolute;inset:0;z-index:1;background:radial-gradient(circle at 85% 10%,rgba(230,106,31,.18),transparent 40%)}
@keyframes streak{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ===== Cards / grids ===== */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:.22s}
.card:hover{transform:translateY(-5px);border-color:var(--teal);box-shadow:0 14px 40px rgba(16,40,37,.12)}
.card .ic{width:54px;height:54px;border-radius:13px;background:linear-gradient(135deg,var(--jade),var(--teal));display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;margin-bottom:18px}
.card.alt .ic{background:linear-gradient(135deg,var(--orange),var(--gold))}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--ink-soft);font-size:14.5px}
.card ul{margin-top:14px;padding-inline-start:0;list-style:none}
.card ul li{font-size:14px;color:var(--ink);padding:7px 0;border-top:1px solid var(--line);display:flex;align-items:center;gap:9px}
.card ul li:before{content:'';width:7px;height:7px;border-radius:50%;background:var(--orange);flex:0 0 auto}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag-row span{font-size:12.5px;font-weight:600;background:var(--bg);border:1px solid var(--line);color:var(--ink);padding:6px 12px;border-radius:20px}

/* value props */
.vp{display:flex;gap:16px;align-items:flex-start}
.vp .n{font-family:var(--mono);font-weight:700;color:var(--orange);font-size:26px;flex:0 0 auto}
.vp h3{font-size:18px}
.vp p{color:var(--ink-soft);font-size:14.5px;margin-top:4px}

/* stats band */
.stats{background:linear-gradient(135deg,var(--jade),var(--jade-deep));color:#fff}
.stats .grid{padding:56px 0}
.stat{text-align:center}
.stat .n{font-family:var(--mono);font-weight:700;font-size:clamp(30px,4vw,46px);color:var(--gold)}
.stat .l{font-size:14px;color:#cfe6e2;margin-top:4px}

/* industries */
.ind{position:relative;color:#fff;border-radius:var(--radius);overflow:hidden;min-height:300px;display:flex;align-items:flex-end;padding:30px;
  border:1px solid var(--line)}
.ind:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(4,35,31,.92))}
.ind .scene{position:absolute;inset:0}
.ind .body{position:relative;z-index:2}
.ind .body h3{color:#fff;font-size:24px}
.ind .body p{color:#dbece9;font-size:14.5px;margin-top:6px}
.sc-og{background:linear-gradient(160deg,#0d4f47,#04302b)}
.sc-petro{background:linear-gradient(160deg,#114f63,#05222b)}
.sc-steel{background:linear-gradient(160deg,#3a2a1c,#241a12)}

/* CTA band */
.cta-band{background:radial-gradient(circle at 20% 30%,#0d6e62,var(--jade-deep));color:#fff;text-align:center;border-radius:var(--radius)}
.cta-band .inner{padding:64px 24px}
.cta-band h2{color:#fff;font-size:clamp(24px,3.5vw,38px)}
.cta-band p{color:#cfe6e2;margin-top:12px;max-width:560px;margin-inline:auto}
.cta-band .cta-row{margin-top:28px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(135deg,var(--jade),var(--jade-deep));color:#fff;padding:64px 0}
.page-hero h1{color:#fff;font-size:clamp(28px,4.5vw,46px)}
.page-hero p{color:#cfe6e2;margin-top:12px;max-width:640px;font-size:17px}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;color:var(--gold);margin-bottom:14px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.contact-row{display:flex;flex-direction:column;gap:14px}
.contact-row a,.contact-row div.item{display:flex;align-items:center;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:13px;padding:18px;transition:.2s}
.contact-row a:hover{border-color:var(--jade)}
.contact-row .k{font-family:var(--mono);font-size:11.5px;letter-spacing:1px;color:var(--ink-soft)}
.contact-row .v{font-weight:700;color:var(--ink)}
.contact-row .ic{font-size:22px}
.form-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.fg{margin-bottom:16px}
.fg label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.fg input,.fg select,.fg textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:14.5px;background:#fcfdfd}
.fg input:focus,.fg select:focus,.fg textarea:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(11,93,82,.12)}
.fg textarea{min-height:120px;resize:vertical}

/* footer */
footer.site{background:var(--panel);color:#9fc4be;padding:54px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
footer.site h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:700}
footer.site a{display:block;color:#9fc4be;font-size:14px;padding:5px 0;transition:.15s}
footer.site a:hover{color:var(--gold)}
footer.site .brand .bt{color:#fff}
.foot-about{font-size:14px;line-height:1.9;color:#9fc4be;margin-top:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;text-align:center;font-size:13px;color:#7fa39d}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* mobile */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr}.hero-art{height:240px}
  .g-4{grid-template-columns:repeat(2,1fr)}.g-3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}.contact-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .burger{display:flex}
  .menu{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:.3s;box-shadow:var(--shadow)}
  .menu.open{transform:none}
  .menu a{padding:14px 10px;border-bottom:1px solid var(--line)}
  .hero-actions-cta{display:none}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
}