/* =========================================================
   DARIUSH MADAN AZAR — PUBLIC SITE STYLESHEET
   Premium corporate mining style: dark graphite / gold / copper
   ========================================================= */

:root{
  --bg:          #0b0b0b;
  --panel:       #151513;
  --panel-2:     #1c1b18;
  --border:      #2b2924;
  --gold:        #c8a24a;
  --gold-bright: #e2c377;
  --copper:      #b87333;
  --text:        #f5f5f5;
  --text-muted:  #b6b0a4;
  --text-faint:  #7c766a;
  --radius:      2px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Vazirmatn',sans-serif;
  line-height:1.8;
  overflow-x:hidden;
}
::selection{background:var(--gold);color:var(--bg);}
.mono{font-family:'JetBrains Mono',monospace;direction:ltr;unicode-bidi:isolate;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
section{position:relative;}
button{font-family:inherit;cursor:pointer;}
::-webkit-scrollbar{width:9px;}
::-webkit-scrollbar-track{background:var(--bg);}
::-webkit-scrollbar-thumb{background:var(--border);}

/* ---------- geological strata background (signature motif) ---------- */
.strata{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0;}
.strata .band{position:absolute;left:-5%;right:-5%;height:12%;background:linear-gradient(90deg,transparent,rgba(200,162,74,.07),transparent);}
.strata .vein{
  position:absolute;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,transparent, var(--gold) 20%, var(--gold-bright) 50%, var(--gold) 80%, transparent);
  box-shadow:0 0 18px 1px rgba(200,162,74,.5);
  animation:veinGlow 6s ease-in-out infinite;
}
@keyframes veinGlow{0%,100%{opacity:.5;}50%{opacity:1;}}
.divider-strata{height:46px;position:relative;overflow:hidden;}
.divider-strata svg{width:100%;height:100%;display:block;}

/* ---------- header / nav ---------- */
header.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,11,11,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;max-width:1180px;margin:0 auto;}
.brand{display:flex;align-items:center;gap:12px;}
.brand .mark{width:34px;height:34px;flex-shrink:0;}
.brand .mark svg{width:100%;height:100%;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-weight:800;font-size:15px;}
.brand-text span{font-size:10px;color:var(--text-faint);letter-spacing:.04em;}
nav.links{display:flex;gap:4px;align-items:center;}
nav.links a{
  display:flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-muted);font-weight:500;
  padding:9px 12px;transition:color .25s,background .25s;border-radius:var(--radius);
}
nav.links a svg{width:16px;height:16px;stroke:currentColor;flex-shrink:0;}
nav.links a:hover{color:var(--gold-bright);background:rgba(200,162,74,.07);}
nav.links a.active{color:var(--gold-bright);background:rgba(200,162,74,.1);}
.nav-cta{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--gold);color:var(--gold-bright);
  padding:9px 18px;font-size:13px;font-weight:600;
  transition:all .25s;white-space:nowrap;
}
.nav-cta:hover{background:var(--gold);color:var(--bg);}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:6px;}
.burger span{width:22px;height:2px;background:var(--text);display:block;}
.mobile-menu{display:none;flex-direction:column;background:var(--panel);border-top:1px solid var(--border);padding:8px 28px 20px;}
.mobile-menu a{display:flex;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid var(--border);font-size:14.5px;color:var(--text-muted);}
.mobile-menu a svg{width:17px;height:17px;stroke:currentColor;}
.mobile-menu a.active{color:var(--gold-bright);}
.mobile-menu.open{display:flex;}

/* ---------- page hero (sub pages) ---------- */
.page-hero{padding:150px 0 66px;position:relative;}
.page-hero .strata .band:nth-child(1){top:20%;}
.page-hero .strata .band:nth-child(2){top:55%;}
.page-hero .vein{right:16%;}
.page-hero-inner{position:relative;z-index:2;}
.crumbs{font-size:12px;color:var(--text-faint);margin-bottom:18px;display:flex;align-items:center;gap:8px;}
.crumbs a:hover{color:var(--gold-bright);}
h1.page-title{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.3;max-width:820px;}
.page-sub{font-size:15.5px;color:var(--text-muted);margin-top:14px;max-width:640px;}

/* ---------- home hero ---------- */
.hero{min-height:92vh;display:flex;align-items:center;position:relative;padding:140px 0 90px;}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:34px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;color:var(--gold-bright);font-weight:600;letter-spacing:.06em;margin-bottom:22px;}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--gold);}
h1.headline{font-size:clamp(32px,5.4vw,58px);font-weight:800;line-height:1.3;max-width:880px;}
h1.headline em{font-style:normal;color:var(--gold-bright);background:linear-gradient(180deg,transparent 65%, rgba(200,162,74,.22) 65%);}
.hero-sub{font-size:16.5px;color:var(--text-muted);max-width:640px;margin-top:8px;}
.hero-actions{display:flex;gap:16px;margin-top:10px;flex-wrap:wrap;}
.btn-primary{background:var(--gold);color:var(--bg);font-weight:700;padding:15px 30px;font-size:14.5px;transition:all .25s;border:1px solid var(--gold);}
.btn-primary:hover{background:var(--gold-bright);border-color:var(--gold-bright);}
.btn-ghost{border:1px solid var(--border);color:var(--text);padding:15px 30px;font-size:14.5px;font-weight:600;transition:all .25s;}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-bright);}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);margin-top:52px;border:1px solid var(--border);max-width:760px;}
.hero-stats .stat{background:var(--panel);padding:22px 20px;}
.hero-stats .stat .num{font-size:22px;font-weight:700;color:var(--gold-bright);}
.hero-stats .stat .lbl{font-size:12px;color:var(--text-faint);margin-top:6px;}

/* ---------- hub cards (home) ---------- */
.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);}
.hub-card{background:var(--bg);padding:32px 26px;transition:background .3s;display:flex;flex-direction:column;gap:12px;}
.hub-card:hover{background:var(--panel);}
.hub-card .hc-icon{width:34px;height:34px;stroke:var(--gold);}
.hub-card h3{font-size:16.5px;font-weight:700;}
.hub-card p{font-size:13.5px;color:var(--text-muted);}
.hub-card .hc-more{font-size:12.5px;color:var(--gold-bright);font-weight:600;margin-top:auto;display:flex;align-items:center;gap:6px;}

/* ---------- shared section ---------- */
.section{padding:96px 0;}
.section-head{max-width:680px;margin-bottom:52px;}
.tag{font-size:12px;color:var(--copper);font-weight:700;letter-spacing:.08em;display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.tag::before{content:'';width:18px;height:1px;background:var(--copper);}
h2.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;line-height:1.35;}
.section-desc{color:var(--text-muted);margin-top:16px;font-size:15px;max-width:620px;}
.bg-panel{background:var(--panel);}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;}
.about-text p{color:var(--text-muted);font-size:15px;margin-bottom:18px;}
.about-text p strong{color:var(--text);font-weight:600;}
.about-quote{border-right:2px solid var(--gold);padding:6px 24px;margin:28px 0;}
.about-quote p{color:var(--gold-bright);font-size:16.5px;font-weight:500;line-height:1.9;}
.reg-card{background:var(--panel-2);border:1px solid var(--border);padding:30px 26px;}
.reg-card .reg-row{display:flex;justify-content:space-between;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--border);gap:14px;}
.reg-card .reg-row:last-child{border-bottom:none;}
.reg-row .k{font-size:12.5px;color:var(--text-faint);}
.reg-row .v{font-size:14px;color:var(--gold-bright);font-weight:600;text-align:left;}

.goals-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-top:10px;}
.goal-item{background:var(--bg);padding:26px 24px;display:flex;gap:16px;transition:background .3s;}
.goal-item:hover{background:var(--panel);}
.goal-item .gi-num{font-family:'JetBrains Mono',monospace;color:var(--border);font-size:20px;font-weight:600;flex-shrink:0;line-height:1;}
.goal-item p{font-size:14px;color:var(--text-muted);}

.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:10px;}
.team-card{border:1px solid var(--border);background:var(--panel);padding:30px 26px;}
.team-card .avatar{width:54px;height:54px;border:1px solid var(--gold);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;color:var(--gold-bright);margin-bottom:18px;}
.team-card h3{font-size:17px;font-weight:700;}
.team-card .role{font-size:13px;color:var(--copper);font-weight:600;margin-top:6px;margin-bottom:16px;}
.team-card .share{display:inline-flex;align-items:baseline;gap:6px;border-top:1px solid var(--border);padding-top:14px;margin-top:4px;}
.team-card .share .p{font-family:'JetBrains Mono',monospace;font-size:20px;color:var(--gold-bright);font-weight:700;}
.team-card .share .l{font-size:11.5px;color:var(--text-faint);}

.timeline{position:relative;padding-right:26px;border-right:1px solid var(--border);margin-top:10px;}
.tl-item{position:relative;padding-bottom:38px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:'';position:absolute;right:-31px;top:4px;width:9px;height:9px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 4px var(--bg), 0 0 0 5px var(--border);}
.tl-item .tl-year{font-family:'JetBrains Mono',monospace;color:var(--gold-bright);font-size:13.5px;font-weight:600;margin-bottom:6px;}
.tl-item p{color:var(--text-muted);font-size:14px;max-width:560px;}

/* ---------- vision quote ---------- */
.vision{background:var(--panel);position:relative;overflow:hidden;padding:100px 0;}
.vision-inner{position:relative;z-index:2;max-width:820px;}
.vision blockquote{font-size:clamp(20px,2.8vw,30px);font-weight:700;line-height:1.7;color:var(--text);}
.vision blockquote .accent{color:var(--gold-bright);}
.vision cite{display:block;margin-top:26px;font-style:normal;color:var(--text-faint);font-size:13px;letter-spacing:.04em;}

/* ---------- projects ---------- */
.projects-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.project-card{border:1px solid var(--border);background:var(--panel);overflow:hidden;transition:border-color .3s, transform .3s;}
.project-card:hover{border-color:var(--gold);transform:translateY(-4px);}
.project-visual{height:160px;position:relative;overflow:hidden;background:linear-gradient(160deg,var(--panel-2),var(--bg));}
.project-status{position:absolute;top:14px;left:14px;font-size:10.5px;font-weight:700;padding:6px 11px;background:rgba(11,11,11,.8);color:var(--gold-bright);border:1px solid var(--gold);}
.project-body{padding:24px 24px 26px;}
.project-body h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.project-loc{font-size:12px;color:var(--copper);font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:6px;}
.project-body p.desc{color:var(--text-muted);font-size:14px;margin-bottom:16px;}
.project-meta{display:flex;gap:9px;flex-wrap:wrap;}
.meta-chip{font-size:11px;color:var(--text-muted);border:1px solid var(--border);padding:5px 11px;font-weight:500;}
.project-card .card-btn{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--gold-bright);font-weight:600;}

/* ---------- assets table ---------- */
.assets-table{width:100%;border-collapse:collapse;margin-top:10px;}
.assets-table th,.assets-table td{padding:14px 16px;text-align:right;border-bottom:1px solid var(--border);font-size:13.5px;}
.assets-table th{color:var(--text-faint);font-weight:600;font-size:12px;letter-spacing:.03em;}
.assets-table td{color:var(--text-muted);}
.assets-table td.hi{color:var(--gold-bright);font-weight:600;}

/* ---------- business activities / value chain ---------- */
.chain{display:flex;flex-direction:column;gap:0;margin-top:10px;}
.chain-item{display:grid;grid-template-columns:84px 1fr;gap:22px;padding:28px 0;border-bottom:1px solid var(--border);align-items:start;}
.chain-item:first-child{border-top:1px solid var(--border);}
.chain-num{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--gold);font-weight:600;padding-top:4px;}
.chain-item h3{font-size:17px;font-weight:700;margin-bottom:7px;}
.chain-item p{color:var(--text-muted);font-size:14px;max-width:640px;}

/* ---------- investment ---------- */
.invest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-top:10px;}
.invest-card{background:var(--bg);padding:28px 24px;}
.invest-card .ic{width:30px;height:30px;stroke:var(--gold);margin-bottom:16px;}
.invest-card h3{font-size:15.5px;font-weight:700;margin-bottom:8px;}
.invest-card p{font-size:13.5px;color:var(--text-muted);}

/* ---------- gallery ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:10px;}
.gallery-item{aspect-ratio:1;border:1px solid var(--border);background:linear-gradient(150deg,var(--panel-2),var(--bg));position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.gallery-item img{width:100%;height:100%;object-fit:cover;}
.gallery-item .placeholder-icon{width:28px;height:28px;stroke:var(--border);}
.gallery-item .cat{position:absolute;bottom:8px;right:8px;font-size:10px;background:rgba(11,11,11,.75);color:var(--gold-bright);padding:4px 9px;border:1px solid var(--border);}
.gallery-empty{color:var(--text-faint);font-size:13.5px;padding:30px 0;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:10px;}
.news-card{border:1px solid var(--border);background:var(--panel);padding:24px;transition:border-color .3s;}
.news-card:hover{border-color:var(--gold);}
.news-card .news-date{font-size:11.5px;color:var(--copper);font-weight:600;margin-bottom:12px;font-family:'JetBrains Mono',monospace;direction:ltr;text-align:right;}
.news-card h3{font-size:16px;font-weight:700;margin-bottom:10px;line-height:1.5;}
.news-card p{font-size:13.5px;color:var(--text-muted);}
.news-card .rm{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--gold-bright);font-weight:600;}

/* ---------- downloads ---------- */
.dl-list{display:flex;flex-direction:column;gap:1px;background:var(--border);border:1px solid var(--border);margin-top:10px;}
.dl-item{background:var(--bg);padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
.dl-item .dl-info{display:flex;align-items:center;gap:16px;}
.dl-item .dl-icon{width:34px;height:34px;stroke:var(--gold);flex-shrink:0;}
.dl-item h4{font-size:14.5px;font-weight:700;}
.dl-item .dl-meta{font-size:12px;color:var(--text-faint);margin-top:4px;}
.dl-item .dl-btn{border:1px solid var(--gold);color:var(--gold-bright);padding:9px 18px;font-size:12.5px;font-weight:600;transition:all .25s;flex-shrink:0;}
.dl-item .dl-btn:hover{background:var(--gold);color:var(--bg);}
.dl-empty{color:var(--text-faint);font-size:13.5px;padding:24px 0;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;}
.contact-info .info-block{margin-bottom:28px;}
.contact-info .info-block .k{font-size:12px;color:var(--text-faint);letter-spacing:.04em;margin-bottom:8px;}
.contact-info .info-block .v{font-size:15px;color:var(--text);font-weight:500;}
.contact-info .info-block a.v:hover{color:var(--gold-bright);}
.offices{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:10px;}
.office-card{border:1px solid var(--border);padding:16px 16px;background:var(--panel);}
.office-card .city{font-size:13px;font-weight:700;color:var(--gold-bright);margin-bottom:8px;}
.office-card p{font-size:12.5px;color:var(--text-muted);}
.form-panel{background:var(--panel);border:1px solid var(--border);padding:34px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:12px;color:var(--text-faint);}
.field input,.field select,.field textarea{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:12px 14px;font-family:'Vazirmatn',sans-serif;font-size:14px;transition:border-color .25s;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);}
.field textarea{resize:vertical;min-height:100px;}
.submit-btn{width:100%;background:var(--gold);color:var(--bg);border:none;padding:15px;font-size:14px;font-weight:700;transition:background .25s;margin-top:4px;}
.submit-btn:hover{background:var(--gold-bright);}
.form-note{font-size:11.5px;color:var(--text-faint);margin-top:12px;text-align:center;}

/* ---------- footer ---------- */
footer.site-footer{border-top:1px solid var(--border);padding:46px 0 30px;background:var(--bg);}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px;margin-bottom:34px;}
.footer-col h4{font-size:12.5px;color:var(--text-faint);letter-spacing:.05em;margin-bottom:16px;}
.footer-col a{display:block;font-size:13px;color:var(--text-muted);margin-bottom:10px;}
.footer-col a:hover{color:var(--gold-bright);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .mark{width:26px;height:26px;}
.footer-brand b{font-size:13.5px;font-weight:700;}
.footer-col p.small{font-size:12.5px;color:var(--text-faint);line-height:1.8;}
.footer-bottom{padding-top:22px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.footer-bottom span{font-size:11.5px;color:var(--text-faint);}
.footer-bottom a{font-size:11.5px;color:var(--text-faint);}
.footer-bottom a:hover{color:var(--gold-bright);}

/* ---------- reveal + counter ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s ease, transform .8s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

@media(max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .gallery-grid{grid-template-columns:repeat(3,1fr);}
  .news-grid{grid-template-columns:1fr 1fr;}
  .invest-grid{grid-template-columns:1fr;}
}
@media(max-width:860px){
  nav.links{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .about-grid,.projects-grid,.team-grid,.contact-grid{grid-template-columns:1fr;}
  .goals-grid,.hub-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .offices{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr;}
  .chain-item{grid-template-columns:44px 1fr;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important;}}