@font-face{font-family:"Vazirmatn";font-style:normal;font-weight:400;font-display:swap;src:url("assets/fonts/Vazirmatn-Regular.woff2") format("woff2")}
@font-face{font-family:"Vazirmatn";font-style:normal;font-weight:500;font-display:swap;src:url("assets/fonts/Vazirmatn-Medium.woff2") format("woff2")}
@font-face{font-family:"Vazirmatn";font-style:normal;font-weight:600;font-display:swap;src:url("assets/fonts/Vazirmatn-SemiBold.woff2") format("woff2")}
@font-face{font-family:"Vazirmatn";font-style:normal;font-weight:700;font-display:swap;src:url("assets/fonts/Vazirmatn-Bold.woff2") format("woff2")}
:root,html[data-theme="dark"]{
  --bg:#06222F; --bg-2:#033246; --card:#0A3446; --card-2:#0D3E54;
  --ink:#EAF7FC; --muted:#9DBECB; --line:#1D4E63;
  --accent:#3AA1C4; --accent-soft:#AFE8FB; --chip:#0D3E54;
  --shadow:0 18px 50px rgba(0,0,0,.45); --overlay:rgba(3,32,46,.97);
}
html[data-theme="light"]{
  --bg:#EAF7FC; --bg-2:#DFF2FA; --card:#FFFFFF; --card-2:#F4FBFE;
  --ink:#0B2A3A; --muted:#47626F; --line:#C8E4EF;
  --accent:#1E7FA3; --accent-soft:#045573; --chip:#E1F2F9;
  --shadow:0 18px 44px rgba(4,85,115,.14); --overlay:rgba(234,247,252,.98);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,var(--bg-2),var(--bg) 320px);color:var(--ink);
  font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;line-height:1.65;font-size:17px;min-height:100vh}
html[lang="fa"] body{font-family:"Vazirmatn",Tahoma,"Segoe UI",system-ui,Arial,sans-serif;line-height:1.9}
a{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
/* header */
header.site{position:sticky;top:0;z-index:60;backdrop-filter:blur(10px);
  background:color-mix(in srgb,var(--bg-2) 88%,transparent);border-bottom:1px solid var(--line)}
.hbar{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:38px;height:38px}
.brand b{letter-spacing:.32em;font-size:.95rem}
.hsp{flex:1}
.iconbtn{appearance:none;border:1px solid var(--line);background:var(--card);color:var(--ink);
  border-radius:10px;padding:7px 12px;cursor:pointer;font:inherit;font-size:.85rem;line-height:1.4}
.iconbtn:hover{border-color:var(--accent)}
.loginbtn{background:var(--accent);border-color:var(--accent);color:#fff;text-decoration:none;font-weight:600}
.langbtn{text-decoration:none}
/* overlay menu */
.overlay{position:fixed;inset:0;z-index:90;background:var(--overlay);display:none;padding:26px 22px}
.overlay.open{display:block}
.overlay .top{display:flex;justify-content:flex-end}
.overlay nav{margin-top:6vh;display:flex;flex-direction:column;gap:6px;align-items:flex-start}
html[dir="rtl"] .overlay nav{align-items:flex-start}
.overlay nav a{color:var(--ink);text-decoration:none;font-size:clamp(1.7rem,5.4vw,2.6rem);font-weight:700;padding:4px 0}
.overlay nav a:hover{color:var(--accent-soft)}
.overlay .socials{margin-top:5vh;display:flex;gap:16px;flex-wrap:wrap}
.overlay .socials a{font-size:1rem;color:var(--muted)}
/* hero + sections */
.hero{padding:76px 0 30px;text-align:center}
.hero img.mark{width:120px;height:120px;filter:drop-shadow(0 16px 40px rgba(0,0,0,.35))}
.hero h1{font-size:clamp(1.9rem,4.6vw,3rem);line-height:1.35;margin:22px auto 12px;max-width:820px}
.hero p{color:var(--muted);max-width:680px;margin:0 auto;font-size:1.06rem}
.cta-row{display:flex;gap:12px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;border-radius:12px;padding:11px 22px;font-weight:600;border:1px solid var(--line);color:var(--ink);background:var(--card)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
section.blk{padding:44px 0}
section.blk h2{font-size:1.55rem;margin:0 0 8px}
section.blk .sub{color:var(--muted);margin:0 0 24px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid.c3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;position:relative;box-shadow:none}
.card h3{margin:0 0 8px;font-size:1.08rem}
.card p{margin:0;color:var(--muted);font-size:.95rem}
.card .thumb{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;margin-bottom:12px;background:var(--card-2)}
.card .thumb-ph{width:100%;aspect-ratio:16/10;border-radius:10px;margin-bottom:12px;background:
  linear-gradient(135deg,var(--card-2),var(--chip));display:flex;align-items:center;justify-content:center}
.card .thumb-ph img{width:56px;height:56px;opacity:.9}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{border:1px solid var(--line);background:var(--chip);color:var(--ink);border-radius:999px;
  padding:5px 14px;cursor:pointer;font:inherit;font-size:.85rem}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.badge{display:inline-block;font-size:.72rem;font-weight:700;border-radius:999px;padding:2px 10px;margin-bottom:10px}
.badge.available{background:#14532d;color:#BBF7D0}
.badge.building{background:#713F12;color:#FDE68A}
.badge.soon{background:#334155;color:#E2E8F0}
.badge.sample{background:#7C2D12;color:#FFEDD5;border:1px dashed #FDBA74}
.chipdev{display:inline-block;font-size:.75rem;font-weight:700;border-radius:999px;padding:3px 12px;background:#713F12;color:#FDE68A;margin-bottom:12px}
.empty{border:1.5px dashed var(--line);border-radius:16px;padding:34px 20px;text-align:center;color:var(--muted);background:transparent}
.sample-banner{background:#7C2D12;color:#FFEDD5;text-align:center;padding:9px 16px;font-size:.85rem}
.ecovis{display:flex;justify-content:center;padding:6px 0 0}
.ecovis svg{max-width:520px;width:100%;height:auto}
.ecovis .node{fill:var(--card);stroke:var(--line)}
.ecovis .hub{fill:var(--accent)}
.ecovis text{fill:var(--ink);font-size:12.5px;font-family:inherit}
.ecovis .link{stroke:var(--accent);stroke-width:1.4;opacity:.55}
.ecocap{text-align:center;color:var(--muted);margin-top:10px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--muted);margin:10px 0 0}
.article-body{max-width:760px}
.article-body p{color:var(--ink)}
.meta-line{color:var(--muted);font-size:.85rem;margin-bottom:14px}
/* contact */
.contact-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
form.contact{display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
form.contact label{font-size:.9rem;font-weight:600}
form.contact input,form.contact select,form.contact textarea{font:inherit;color:var(--ink);background:var(--bg);
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}
form.contact .status{font-size:.85rem;color:var(--muted);min-height:1.2em}
.cinfo{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.cinfo a{font-weight:600}
.cinfo .row{margin-bottom:14px}
.cinfo .k{color:var(--muted);font-size:.82rem;display:block}
/* footer */
footer.site{border-top:1px solid var(--line);margin-top:30px;padding:34px 0 44px;background:var(--bg-2)}
.fgrid{display:flex;gap:28px;flex-wrap:wrap;align-items:flex-start}
.fgrid img{width:44px;height:44px}
.fnav{display:flex;gap:16px;flex-wrap:wrap}
.fnav a{color:var(--muted);text-decoration:none;font-size:.92rem}
.fnav a:hover{color:var(--accent-soft)}
.fine{color:var(--muted);font-size:.82rem;margin-top:18px}
.pagehead{padding:54px 0 6px}
.pagehead h1{font-size:clamp(1.7rem,4vw,2.4rem);margin:0 0 8px}
.pagehead p{color:var(--muted);max-width:720px;margin:0}
/* search overlay */
.search-box{max-width:680px;margin:6vh auto 0}
.search-box input{width:100%;font:inherit;font-size:1.08rem;color:var(--ink);
  background:var(--card);border:1px solid var(--line);border-radius:12px;padding:13px 16px}
.search-results{margin-top:16px;display:flex;flex-direction:column;gap:10px;
  max-height:62vh;overflow:auto;padding-bottom:10px}
.sres{display:block;text-decoration:none;background:var(--card);
  border:1px solid var(--line);border-radius:12px;padding:13px 16px;color:var(--ink)}
.sres:hover{border-color:var(--accent)}
.sres .ty{display:inline-block;font-size:.7rem;font-weight:700;color:var(--accent-soft);
  background:var(--chip);border-radius:999px;padding:1px 9px;margin-bottom:5px}
.sres .t{display:block;font-weight:700}
.sres .x{display:block;color:var(--muted);font-size:.88rem;margin-top:2px}
.search-none{color:var(--muted);text-align:center;padding:14px}
/* 404 + legal */
.notfound{text-align:center;padding:76px 0 60px}
.notfound img{width:110px;height:110px}
.notfound h1{font-size:clamp(1.7rem,4vw,2.4rem);margin:18px 0 8px}
.notfound p{color:var(--muted);max-width:560px;margin:0 auto 18px}
.legal h3{margin:24px 0 6px;font-size:1.05rem}
.legal p{margin:0 0 8px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}