:root{--navy:#0f2a4a;--navy2:#173a63;--teal:#0e8fa6;--teal2:#14a9c2;--bg:#f4f8fb;--ink:#1c2b3a;--mut:#5b6b7b;--line:#dde7ef;--white:#fff;--r:16px;--sh:0 10px 30px rgba(15,42,74,.09)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{margin:0;font-family:Vazirmatn,Tahoma,sans-serif;font-size:17px;line-height:1.95;color:var(--ink);background:#fff;padding-bottom:64px}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none}a:hover{color:var(--navy)}
h1,h2,h3,h4{color:var(--navy);line-height:1.5;margin:0 0 .6em;font-weight:800}
h1{font-size:clamp(1.7rem,4.5vw,2.7rem)}h2{font-size:clamp(1.35rem,3vw,1.9rem)}h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.narrow{max-width:820px}.center{text-align:center}
.skip{position:absolute;right:-999px;top:0;background:#000;color:#fff;padding:8px 14px;z-index:99}.skip:focus{right:0}
.ic{width:1.15em;height:1.15em;flex:none;vertical-align:-.2em;margin-inline-end:.35em;fill:none}
.ic use{color:inherit}
svg.ic{display:inline-block}
.topbar{background:var(--navy);color:#cfe3f3;font-size:.85rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:7px 0;flex-wrap:wrap}
.topbar a,.tb-item{color:#cfe3f3;display:inline-flex;align-items:center}
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(15,42,74,.1)}
.hd{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 0}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy)}
.brand img{border-radius:12px}
.brand-t{display:flex;flex-direction:column;line-height:1.4}.brand-t strong{font-size:1.1rem}.brand-t small{color:var(--mut);font-size:.78rem}
.nav{display:flex;align-items:center;gap:14px}
.nav ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.nav ul a{display:block;padding:8px 11px;border-radius:10px;color:var(--ink);font-weight:600;font-size:.95rem}
.nav ul a:hover,.nav ul a[aria-current]{background:var(--bg);color:var(--teal)}
.nav-btn{display:none;background:none;border:0;padding:10px;cursor:pointer}
.nav-btn span{display:block;width:26px;height:3px;background:var(--navy);margin:5px 0;border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:11px 22px;border-radius:999px;font-weight:700;font-family:inherit;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:.2s;line-height:1.6}
.btn-primary,.btn-call{background:linear-gradient(135deg,var(--teal),var(--teal2));color:#fff!important;box-shadow:0 8px 20px rgba(14,143,166,.3)}
.btn-primary:hover,.btn-call:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,143,166,.4)}
.btn-ghost{border-color:var(--navy);color:var(--navy)}.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-lg{padding:14px 28px;font-size:1.05rem}.btn-block{display:flex;width:100%;margin-bottom:8px}
.btn-call{padding:9px 18px;font-size:.95rem}
/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,#d9f1f6 0,transparent 60%),linear-gradient(180deg,#f3f9fc,#fff)}
.hero-g{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:48px 0 40px}
.eyebrow{display:inline-flex;align-items:center;color:var(--teal);font-weight:700;font-size:.9rem;background:#e3f5f9;padding:4px 14px;border-radius:999px;margin-bottom:12px}
.hero h1 span{display:block;color:var(--teal);font-size:.62em;margin-top:6px}
.lead{font-size:1.1rem;color:#33475b}
.hero-pts{list-style:none;padding:0;margin:0 0 22px}
.hero-pts li{display:flex;align-items:flex-start;gap:4px;margin-bottom:6px}
.hero-pts .ic,.ticks .ic{color:#fff;background:var(--teal);border-radius:50%;padding:3px;width:1.5em;height:1.5em;margin-top:.25em}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-f{margin:0;position:relative}
.hero-f img{border-radius:28px;box-shadow:0 24px 60px rgba(15,42,74,.25);aspect-ratio:6/5;object-fit:cover;width:100%}
.hero-f figcaption{position:absolute;inset:auto 14px 14px 14px;background:rgba(15,42,74,.92);color:#fff;padding:12px 18px;border-radius:16px;display:flex;flex-direction:column;line-height:1.6}
.hero-f figcaption span{color:#bfe6ef;font-size:.9rem}.hero-f figcaption small{color:#9db6cc}
.trust{background:var(--navy);color:#fff}
.trust-g{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:20px 0}
.trust-g div{display:flex;flex-direction:column;align-items:center;text-align:center;line-height:1.6;padding:6px}
.trust-g .ic{width:2em;height:2em;color:#6fd3e6;margin:0 0 4px}
.trust-g span{color:#a9c4dc;font-size:.85rem}
.sec{padding:64px 0}.sec.alt{background:var(--bg)}
.sec-h{text-align:center;max-width:760px;margin:0 auto 36px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh);transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(15,42,74,.14)}
.card-img{display:block;aspect-ratio:16/8.5;background:linear-gradient(135deg,var(--navy),var(--teal));overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.ph{display:flex;align-items:center;justify-content:center;height:100%;color:#fff}.ph .ic{width:56px;height:56px;margin:0}
.card-b{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-b h3 a{color:var(--navy)}.card-b p{color:var(--mut);font-size:.95rem;flex:1}
.more{font-weight:700;display:inline-flex;align-items:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.ticks{list-style:none;padding:0;margin:20px 0 0}.ticks li{display:flex;gap:6px;margin-bottom:10px}
.steps{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--sh)}
.steps ol{list-style:none;padding:0;margin:0}.steps li{display:flex;gap:14px;margin-bottom:16px}
.steps b{flex:none;width:38px;height:38px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center}
.steps strong{display:block;color:var(--navy)}.steps span{color:var(--mut);font-size:.93rem;line-height:1.8;display:block}
.about-g{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center}
.about-g img{border-radius:24px;box-shadow:var(--sh)}.about-g figure{margin:0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--teal);line-height:1}
.faq details[open] summary::after{content:"−"}
.faq summary::-webkit-details-marker{display:none}
.faq details div{padding-bottom:6px;color:#33475b}
.contact-sec{background:var(--bg)}
.cg{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:stretch}
.clist{list-style:none;padding:0;margin:0 0 20px}.clist li{display:flex;gap:6px;margin-bottom:10px;align-items:flex-start}
.clist .ic{color:var(--teal);margin-top:.35em}
.map{border-radius:20px;overflow:hidden;min-height:340px;box-shadow:var(--sh);border:1px solid var(--line)}.map iframe{width:100%;height:100%;min-height:340px;border:0}
/* inner pages */
.page-hero{background:linear-gradient(180deg,#eef7fb,#fff);padding:28px 0 10px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(1.5rem,3.6vw,2.2rem);margin-bottom:.4em}
.byline{color:var(--mut);font-size:.9rem;display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;padding:0;margin:0 0 12px;font-size:.85rem;color:var(--mut)}
.crumbs li+li::before{content:"‹";margin:0 8px;color:#9ab}
.article-g{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
.prose{font-size:1.04rem}
.prose h2{margin-top:2em;padding-top:.4em;border-top:3px solid #e3f5f9;scroll-margin-top:90px}
.prose h3{margin-top:1.5em;color:var(--navy2);scroll-margin-top:90px}
.prose ul,.prose ol{padding-inline-start:1.4em;margin:0 0 1.2em}.prose li{margin-bottom:.35em}
.prose li::marker{color:var(--teal)}
.prose .feat{width:100%;border-radius:18px;margin-bottom:24px;box-shadow:var(--sh)}
.tbl-wrap{overflow-x:auto;margin:1.4em 0;border-radius:14px;border:1px solid var(--line)}
.prose table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:right;vertical-align:top}
.prose thead th{background:var(--navy);color:#fff}.prose tbody th{background:var(--bg);color:var(--navy)}
.callout{border-radius:14px;padding:14px 18px;margin:1.4em 0;border-inline-start:5px solid var(--teal);background:#e8f6fa}
.callout.warn{background:#fff6e5;border-color:#e59a12}.callout p{margin:0}
.toc{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:6px 20px;margin:0 0 28px}
.toc summary{cursor:pointer;font-weight:800;color:var(--navy);padding:10px 0}
.toc ol{columns:2;column-gap:28px;padding-inline-start:1.3em;margin:0 0 12px;font-size:.95rem}.toc li{break-inside:avoid;margin-bottom:4px}
.sources{font-size:.88rem;color:var(--mut)}
.cta-box{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border-radius:20px;padding:28px;margin-top:40px;text-align:center}
.cta-box h2{color:#fff;border:0;margin-top:0;padding:0}.cta-box p{color:#cfe3f3}
.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:var(--sh);text-align:center}
.side-card.sticky{position:sticky;top:96px}
.side-card img{border-radius:14px;margin-bottom:12px;width:100%}
.side-card h2{font-size:1.15rem;margin-bottom:.2em}.side-card p{color:var(--mut);font-size:.9rem}
.side-card h3{text-align:right;font-size:1rem}.side-card ul{list-style:none;padding:0;margin:0;text-align:right;font-size:.92rem}.side-card li{padding:6px 0;border-bottom:1px dashed var(--line)}
.side-card hr{border:0;border-top:1px solid var(--line);margin:14px 0}
.pager{margin-top:36px;text-align:center}.pager .nav-links{display:flex;gap:6px;justify-content:center}
.pager .page-numbers{padding:6px 14px;border:1px solid var(--line);border-radius:10px}.pager .current{background:var(--navy);color:#fff}
.inline-fig{margin:1.4em 0}.inline-fig img{width:100%;border-radius:16px;box-shadow:var(--sh)}
.related-box a{font-weight:700}
/* footer */
.site-footer{background:#0b1f38;color:#b5c8da;padding-top:48px;font-size:.93rem}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.site-footer h2{color:#fff;font-size:1.05rem}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:6px}
.site-footer a{color:#b5c8da}.site-footer a:hover{color:#fff}
.site-footer address{font-style:normal}.site-footer address p{margin-bottom:6px;display:flex;gap:4px}
.site-footer .ic{color:#6fd3e6}.flogo{border-radius:14px;margin-bottom:10px}
.fnote{border-top:1px solid #1d3a5c;margin-top:32px;padding:18px 0 22px;font-size:.82rem;color:#8aa3bb}
.fnote p{margin:0 0 4px}
.callbar{display:none}
@media(max-width:960px){
 .hero-g,.split,.about-g,.cg,.article-g{grid-template-columns:minmax(0,1fr)}
 .hero-g>*,.split>*,.about-g>*,.cg>*,.article-g>*{min-width:0}
 .hero-g{gap:24px;padding-top:28px}.hero-f{max-width:520px;margin:0 auto}
 .trust-g{grid-template-columns:repeat(2,1fr)}
 .fgrid{grid-template-columns:1fr 1fr}
 .side-card.sticky{position:static}
 .nav-btn{display:block}
 .nav{position:fixed;inset:0 0 0 auto;width:min(86vw,340px);background:#fff;flex-direction:column;align-items:stretch;padding:76px 20px 20px;transform:translateX(100%);transition:transform .25s;z-index:60;box-shadow:-10px 0 40px rgba(0,0,0,.2);overflow:auto}
 [dir=rtl] .nav{inset:0 auto 0 0;transform:translateX(-100%);box-shadow:10px 0 40px rgba(0,0,0,.2)}
 .nav.open{transform:none}
 .nav ul{flex-direction:column}.nav ul a{padding:12px}
 .nav-btn{position:relative;z-index:70}
 .toc ol{columns:1}
}
@media(max-width:600px){
 body{font-size:16px;padding-bottom:70px}
 .sec{padding:44px 0}.topbar .tb-item:first-child{display:none}.topbar .wrap{justify-content:center}
 .fgrid{grid-template-columns:1fr}
 .brand-t small{display:none}
 .cta .btn{width:100%;white-space:nowrap;padding-inline:12px}
 .callbar a{white-space:nowrap;font-size:.85rem}
 .callbar{display:flex;position:fixed;inset:auto 0 0 0;z-index:80;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.1);gap:8px;padding:8px 10px}
 .callbar a{display:flex;align-items:center;justify-content:center;border-radius:12px;font-weight:700;padding:11px 8px;font-size:.92rem}
 .cb-call{flex:2;background:linear-gradient(135deg,var(--teal),var(--teal2));color:#fff}
 .cb-wa,.cb-map{flex:1;background:var(--bg);color:var(--navy)}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.topbar,.site-header,.callbar,.side,.site-footer{display:none}}