:root{--night:#102e30;--night-2:#0b2426;--ink:#153034;--muted:#5b7173;--muted-light:#b3ceca;--teal:#13796f;--teal-dark:#0c5e57;--mint:#c6f2db;--cream:#f7f8f4;--paper:#fff;--line:#e0e9e6;--danger:#a53434;--radius:19px;--shadow:0 24px 72px rgba(6,34,33,.10)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--cream);color:var(--ink);font-family:Vazirmatn,Tahoma,"Segoe UI",sans-serif;font-size:16px;line-height:1.85;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
body,button,input,select,textarea{font-family:Vazirmatn,Tahoma,"Segoe UI",sans-serif}
a{color:inherit;text-decoration:none}
a:hover{color:var(--teal)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.38;letter-spacing:-.025em}
img,svg{max-width:100%}
:focus-visible{outline:3px solid #60bdaf;outline-offset:3px}
.wrap{max-width:1250px;margin:0 auto;padding-inline:30px}
.skip-link{position:absolute;right:15px;top:-70px;background:white;color:#102e30;padding:9px 15px;z-index:500;border-radius:10px}
.skip-link:focus{top:12px}
.section{padding-block:110px}
.section-kicker{display:inline-flex;align-items:center;gap:11px;color:var(--teal);font-size:14px;font-weight:800;letter-spacing:.025em;margin:0 0 19px}
.section-kicker>span{width:22px;height:2px;background:currentColor;display:inline-block}
.light-kicker{color:#a8e9ca}
.section-heading{margin-bottom:43px}
.section-heading h2,.materials-copy h2,.approach-grid h2,.faq-grid h2,.bottom-cta h2{font-size:clamp(30px,4.25vw,52px);font-weight:900;letter-spacing:-.045em;margin:0;line-height:1.37}
.section-heading h2 em,.materials-copy h2 em,.faq-grid h2 em{font-style:normal;color:var(--teal)}
.heading-split{display:flex;gap:36px;align-items:end;justify-content:space-between}
.heading-split>p{max-width:440px;font-size:16.5px;color:var(--muted);line-height:2;margin:0 0 5px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;white-space:nowrap;border:1px solid transparent;border-radius:12px;padding:12px 25px;min-height:49px;line-height:1.6;font-size:14.5px;font-weight:800;transition:background .2s,color .2s,transform .2s,border-color .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--teal);color:white}
.button-primary:hover{background:var(--teal-dark);color:white}
.button-mint{color:var(--night);background:var(--mint)}
.button-mint:hover{color:var(--night);background:#e1ffee}
.button-outline-light{border-color:rgba(230,255,244,.32);color:#f3fff9;background:rgba(255,255,255,.035)}
.button-outline-light:hover{border-color:var(--mint);color:var(--mint)}
.text-link{display:inline-flex;align-items:center;gap:25px;color:var(--teal);font-weight:800;font-size:15px}
.text-link:hover{gap:33px}
/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.965);box-shadow:0 1px 0 var(--line);backdrop-filter:blur(16px)}
.header-inner{min-height:89px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:24px;line-height:1.25;font-weight:900;color:var(--ink);white-space:nowrap}
.brand img{flex-shrink:0}
.brand small{display:block;color:var(--teal);font-size:9px;letter-spacing:.19em;font-weight:800;direction:ltr;text-align:right;margin-top:3px}
.brand:hover{color:var(--ink)}
.nav{display:flex;align-items:center;gap:clamp(13px,2vw,33px)}
.nav a{font-size:14px;color:#3b5456;font-weight:700;white-space:nowrap}
.nav a:hover,.nav a[aria-current=page]{color:var(--teal)}
.header-actions{display:flex;align-items:center;gap:13px}
.header-contact{padding:10px 18px;min-height:43px}
.menu-toggle{display:none;width:43px;height:43px;border:1px solid var(--line);border-radius:11px;background:white;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:5px}
.flash-wrap{padding-block:10px}
.flash{padding:10px 18px;border:1px solid var(--line);border-radius:10px;background:#eaf7ed;color:var(--ink)}
.flash-error{background:#fff0ee;border-color:#facfcb;color:#8c2e27}
/* Hero */
.hero{position:relative;background:radial-gradient(circle at 15% 18%,#265451 0,transparent 37%),linear-gradient(135deg,#102e30,#0c282a 70%);color:white;overflow:hidden}
.hero::before{content:"";position:absolute;width:530px;height:530px;top:-260px;right:-180px;border:1px solid rgba(196,247,218,.075);border-radius:50%;box-shadow:0 0 0 85px rgba(196,247,218,.018),0 0 0 170px rgba(196,247,218,.015)}
.hero-noise{position:absolute;inset:0;pointer-events:none;opacity:.25;background-image:radial-gradient(rgba(226,255,244,.18) .6px,transparent .6px);background-size:23px 23px;mask-image:linear-gradient(90deg,transparent 30%,#000)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(380px,.88fr);align-items:center;gap:clamp(35px,5vw,82px);padding-top:92px;padding-bottom:100px;position:relative;z-index:1}
.hero-copy{padding-bottom:8px}
.hero-kicker{display:inline-flex;align-items:center;gap:12px;font-weight:700;font-size:14px;color:#c3f0dc;border:1px solid rgba(189,240,219,.24);padding:4px 14px;border-radius:99px;background:rgba(255,255,255,.045)}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#b9eec7;box-shadow:0 0 0 5px rgba(185,238,199,.12)}
.hero h1{font-size:clamp(39px,5.1vw,75px);font-weight:900;letter-spacing:-.055em;line-height:1.34;margin:26px 0 20px}
.hero h1 span{color:var(--mint)}
.hero-description{color:#cadfdb;font-size:clamp(16px,1.45vw,19px);line-height:2.15;max-width:670px;margin:0}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;margin-top:35px}
.hero-features{display:flex;align-items:center;flex-wrap:wrap;gap:13px 20px;padding-top:40px;margin-top:36px;border-top:1px solid rgba(202,243,224,.16);color:#d0e3df;font-size:13px;font-weight:600}
.hero-features span{display:inline-flex;align-items:center;gap:7px}
.hero-features b{display:flex;justify-content:center;align-items:center;background:rgba(186,242,211,.14);color:var(--mint);width:21px;height:21px;border-radius:50%;font-size:12px}
.hero-panel-wrap{position:relative;padding:18px 8px 12px 15px}
.hero-decoration{position:absolute;inset:-45px -45px -38px -42px;pointer-events:none;z-index:0}
.ring{position:absolute;border:1px solid rgba(201,250,224,.2);border-radius:50%;inset:5px -27px 35px 25px;transform:rotate(-12deg)}
.ring-2{inset:25px -49px 0 6px;transform:rotate(13deg);opacity:.5}
.orbit-point{position:absolute;width:12px;height:12px;border-radius:50%;background:#b8efd2;box-shadow:0 0 26px #b8efd2}
.orbit-point-1{right:3px;top:55px}.orbit-point-2{left:0;bottom:70px;width:7px;height:7px}
.contact-card{position:relative;z-index:1;background:white;border:1px solid #e2eae6;border-radius:22px;color:var(--ink);padding:31px 34px 27px;box-shadow:0 34px 80px rgba(0,12,17,.22);scroll-margin-top:115px}
.contact-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}
.tag{font-size:12px;font-weight:800;color:var(--teal);background:#e6f7ed;padding:3px 13px;border-radius:99px}
.contact-step{font:700 11px "Segoe UI",sans-serif;color:#8ba4a3;letter-spacing:.11em;direction:ltr}
.contact-card h2{font-size:clamp(26px,2.7vw,34px);font-weight:900;margin:0 0 7px}
.contact-intro{font-size:14px;color:var(--muted);margin:0 0 20px}
.hero-bottom{display:flex;gap:15px;justify-content:space-between;align-items:center;max-width:1190px;margin:auto;color:#b7d4ca;padding:0 30px 23px;font:600 10px "Segoe UI",sans-serif;letter-spacing:.18em;opacity:.75}
.hero-bottom span:last-child{font-size:20px}
/* Form */
.lead-form{display:grid;grid-template-columns:1fr 1fr;gap:14px 12px}
.form-field{display:flex;flex-direction:column;gap:6px;min-width:0}
.form-field label{font-size:12.5px;font-weight:800;color:#314b4c}
.form-field label>span[aria-hidden=true]{color:var(--teal)}
.form-field input,.form-field select,.form-field textarea{width:100%;background:#f8faf8;border:1px solid #d7e2dd;border-radius:10px;min-height:45px;color:var(--ink);padding:9px 12px;font-size:13.5px;outline:none;transition:border-color .2s,box-shadow .2s}
.form-field input::placeholder,.form-field textarea::placeholder{color:#90a09e}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{border-color:#3eac94;box-shadow:0 0 0 3px #dff4e8}
.form-field input[dir=ltr]{text-align:right}
.form-field textarea{resize:vertical;min-height:68px;line-height:1.8}
.privacy-check,.form-submit,.form-note,.form-feedback{grid-column:1/-1}
.form-field:has(textarea){grid-column:1/-1}
.optional{color:#8a9b99;font-weight:500}
.privacy-check{display:flex;align-items:flex-start;gap:9px;font-size:12px;color:#617775;line-height:1.9;cursor:pointer}
.privacy-check input{accent-color:var(--teal);margin-top:7px;flex-shrink:0;width:16px;height:16px}
.privacy-check a{text-decoration:underline;text-underline-offset:3px;color:var(--teal);font-weight:700}
.form-submit{width:100%;justify-content:space-between;margin-top:1px;font-size:14px}
.form-submit:disabled{opacity:.6;cursor:progress;transform:none}
.form-note{margin:0;text-align:center;color:#849695;font-size:11.5px}
.form-feedback{margin:0;font-size:12.5px;font-weight:700;min-height:0}
.form-feedback:not(:empty){padding:8px 12px;border-radius:9px;background:#eef9f2}
.form-feedback.is-error{color:#a3312b;background:#ffeded}
.form-feedback.is-success{color:#12694e}
.honeypot{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
/* Services */
.section-services{background:var(--cream)}
.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.service-card{display:flex;flex-direction:column;background:white;border:1px solid var(--line);border-radius:var(--radius);padding:30px;min-height:385px;transition:transform .25s,box-shadow .25s,border-color .25s}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#a4d6c6}
.service-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:35px}
.service-num{font:700 11px "Segoe UI",sans-serif;color:#84a7a1;letter-spacing:.09em}
.service-icon{font:400 39px "Segoe UI Symbol",sans-serif;line-height:1;color:var(--teal);display:flex;justify-content:center;align-items:center;width:62px;height:62px;border-radius:17px;background:#e7f6ed}
.service-card h3{font-size:24px;font-weight:900;margin-bottom:13px}
.service-card p{font-size:14.5px;color:var(--muted);line-height:2;margin-bottom:20px}
.service-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}
.service-tags span{font-size:11px;border-radius:99px;padding:2px 9px;background:#f3f7f4;color:#4f716b}
.service-link{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);color:var(--teal);font-size:13.5px;font-weight:900;margin-top:28px;padding-top:20px}
.service-link span{font-size:20px}
/* Nanomaterials */
.materials-section{background:#153a3b;color:white;padding-block:112px;overflow:hidden}
.materials-grid{display:grid;grid-template-columns:1fr .97fr;gap:80px;align-items:center}
.materials-copy h2{font-size:clamp(36px,4.2vw,54px)}
.materials-copy h2 em{color:var(--mint)}
.materials-copy>p:not(.section-kicker){font-size:16.5px;line-height:2.2;color:#c4ddd7;max-width:580px;margin:25px 0 22px}
.materials-chips{display:flex;flex-wrap:wrap;gap:9px;margin:26px 0 34px}
.materials-chips span{border:1px solid #426c67;background:#1f4b4a;padding:5px 16px;border-radius:9px;direction:ltr;font:600 13px "Segoe UI",Tahoma,sans-serif;color:#e4f8f2}
.materials-chips span:last-child{font-family:inherit;direction:rtl}
.light-link{color:var(--mint)}
.light-link:hover{color:white}
.science-visual{position:relative;border:1px solid #46706b;background:radial-gradient(circle,#295853,#143635 75%);border-radius:26px;min-height:410px;display:flex;justify-content:center;align-items:center;box-shadow:inset 0 0 70px rgba(136,221,190,.045),0 25px 85px rgba(0,0,0,.12)}
.science-visual svg{width:100%}
.science-coordinate{position:absolute;color:#87bcb2;font:600 11px "Segoe UI",sans-serif;letter-spacing:.2em;direction:ltr}
.science-coordinate-top{top:20px;left:23px}.science-coordinate-bottom{bottom:20px;right:23px}
/* Computation */
.computation-section{background:white}
.computation-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}
.mini-service{border-top:2px solid #20514c;padding:25px 12px 0 16px}
.mini-num{font:600 13px "Segoe UI",sans-serif;color:#76a99b;direction:ltr;display:block;margin-bottom:30px}
.mini-service h3{font-size:20px;font-weight:900;margin-bottom:13px}
.mini-service p{color:var(--muted);font-size:14.5px;line-height:2;margin-bottom:0}
/* Process */
.process-section{background:#f2f6f1;border-top:1px solid #e8eee8}
.heading-centered{text-align:center;max-width:760px;margin-inline:auto;margin-bottom:52px}
.heading-centered>p:not(.section-kicker){font-size:16px;color:var(--muted);margin:20px 0 0}
.process-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.process-step{padding:24px 4px}
.step-number{color:var(--teal);font:800 35px Vazirmatn,Tahoma,sans-serif}
.step-line{position:relative;height:1px;background:#c9dcd4;margin:15px 0 22px}
.step-line::before{content:"";position:absolute;right:0;top:-4px;width:9px;height:9px;border-radius:50%;background:#3ca590}
.process-step h3{font-size:20px;font-weight:900;margin-bottom:10px}
.process-step p{color:var(--muted);font-size:14px;line-height:2;margin:0}
/* Approach */
.approach-section{background:#deeee5;padding:80px 0}
.approach-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px}
.approach-grid h2{font-size:clamp(29px,3.7vw,46px)}
.approach-text p{font-size:17px;color:#365d58;line-height:2.2;margin-bottom:18px}
/* Article cards */
.articles-section{background:var(--cream)}
.articles-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}
.article-card{display:flex;flex-direction:column;background:white;border:1px solid var(--line);border-radius:17px;padding:27px 26px;min-height:278px;transition:box-shadow .25s,transform .25s,border-color .25s}
.article-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:#95cbbb;color:var(--ink)}
.article-category{display:flex;justify-content:space-between;gap:10px;color:#78948c;font-size:12px;font-weight:800;margin-bottom:27px}
.article-category>span{font-size:18px;color:var(--teal)}
.article-card h3{font-size:20px;font-weight:900;margin-bottom:12px}
.article-card p{color:var(--muted);font-size:14px;line-height:2;margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.article-card-more{font-size:13px;font-weight:900;color:var(--teal);margin-top:auto;border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;align-items:center}
.article-card-more span{font-size:20px}
.all-guides{margin-bottom:9px}
/* FAQ */
.faq-section{background:white}
.faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:85px}
.faq-grid>div:first-child>p:not(.section-kicker){color:var(--muted);font-size:16px;max-width:340px;margin-top:25px}
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line);padding:22px 0}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:25px;font-size:16px;font-weight:800}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary span{width:28px;height:28px;flex-shrink:0;border-radius:50%;background:#e8f4eb;color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:400;transition:transform .25s}
.faq-list details[open] summary span{transform:rotate(45deg)}
.faq-list details p{color:var(--muted);font-size:14.5px;margin:12px 0 0;line-height:2.1;padding-left:45px}
.faq-list details a{color:var(--teal);text-decoration:underline}
/* CTA/footer */
.bottom-cta{background:#13796f;color:white;position:relative;overflow:hidden}
.bottom-cta::after{content:"";position:absolute;left:-100px;top:-250px;width:470px;height:470px;border:1px solid #53a69b;border-radius:50%;box-shadow:0 0 0 100px rgba(255,255,255,.035),0 0 0 200px rgba(255,255,255,.025);pointer-events:none}
.bottom-cta-inner{padding-block:82px;display:flex;gap:45px;justify-content:space-between;align-items:center;position:relative;z-index:1}
.bottom-cta h2{font-size:clamp(30px,4vw,48px)}
.bottom-cta p:not(.section-kicker){color:#d9efeb;margin:15px 0 0}
.bottom-actions{display:flex;gap:12px;flex-wrap:wrap;max-width:540px;justify-content:flex-end}
.bottom-actions .button-outline-light{border-color:#85c8bb}
.site-footer{background:#0b2527;color:#c2d8d3}
.footer-main{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:80px;padding-top:70px;padding-bottom:55px}
.footer-brand{color:white}.footer-brand:hover{color:white}.footer-brand small{color:#a5d9c2}
.footer-about p{font-size:14px;line-height:2.15;max-width:415px;color:#b0ccc5;margin:22px 0 0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links h2{font-size:16px;color:white;margin:4px 0 15px;font-weight:900}
.footer-links a{font-size:13.5px;color:#b0ccc5;line-height:1.9}
.footer-links a:hover{color:var(--mint)}
.footer-bottom{border-top:1px solid #264849;padding-top:20px;padding-bottom:22px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#92b0a9;font-size:12px}
/* Inner pages */
.inner-hero{background:radial-gradient(circle at 10% 30%,#275651,#102e30 60%);color:white;padding:88px 0 96px;overflow:hidden}
.inner-hero h1{font-size:clamp(34px,5vw,62px);font-weight:900;line-height:1.4;margin:0 0 17px}
.inner-hero h1 em{font-style:normal;color:var(--mint)}
.inner-hero p:not(.section-kicker){max-width:670px;color:#c1dcd5;font-size:18px}
.small-inner-hero{padding:72px 0}
.articles-grid-all{row-gap:20px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:65px;padding-top:58px;padding-bottom:110px}
.article-body{min-width:0}
.breadcrumbs{display:flex;align-items:center;gap:12px;color:#78938d;font-size:13px;font-weight:700;margin-bottom:31px}
.breadcrumbs a:hover{color:var(--teal)}
.article-heading{padding-bottom:39px;border-bottom:1px solid var(--line)}
.article-overline{color:var(--teal);font-size:12px;font-weight:900}
.article-heading h1{font-size:clamp(33px,4.3vw,54px);line-height:1.5;font-weight:900;margin:16px 0}
.article-lead{font-size:19px;color:#587573;line-height:2.15;margin:0}
.article-content section{padding-top:26px}
.article-content h2{font-size:26px;font-weight:900;margin:24px 0 15px}
.article-content p{font-size:16.5px;color:#355255;line-height:2.3;margin:0 0 13px;text-align:justify}
.article-endnote{background:#eaf4ee;border-right:3px solid #4ba58c;padding:16px 20px;margin-top:38px;color:#3d6861;font-size:14px;line-height:2.1;border-radius:9px}
.article-inline-contact{background:white;border:1px solid var(--line);padding:34px;border-radius:19px;margin-top:48px}
.article-inline-contact h2{font-size:26px;font-weight:900;margin:0 0 7px}
.article-inline-contact>p{color:var(--muted);margin-bottom:27px}
.article-inline-contact .lead-form{max-width:700px}
.related-articles{margin-top:70px}
.related-articles h2{font-size:26px;margin-bottom:23px}
.related-articles .articles-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.related-articles .article-card{min-height:175px;padding:19px}
.related-articles .article-card h3{font-size:15.5px}
.article-sidebar{padding-top:87px}
.sidebar-box{background:white;border:1px solid var(--line);border-radius:16px;padding:24px;position:sticky;top:115px}
.sidebar-box h2{font-size:23px;font-weight:900;margin:0 0 12px}
.sidebar-box p{color:var(--muted);font-size:14px;margin-bottom:20px}
.sidebar-box .button{width:100%;font-size:12.5px;gap:8px;padding-inline:9px}
.sidebar-back{display:inline-block;color:var(--teal);margin-top:21px;font-size:13px;font-weight:800}
.legal-content{max-width:920px;padding-top:65px;padding-bottom:100px}
.legal-content h2{font-size:23px;margin:34px 0 9px}
.legal-content p{font-size:16px;color:#456260;line-height:2.3;margin:0}
.legal-content a{color:var(--teal);text-decoration:underline}
.legal-note{margin-top:40px!important;font-size:13px!important;color:#7b9690!important}
.result-section{padding:100px 0 115px;min-height:57vh;display:flex;align-items:center}
.result-card{max-width:700px;margin:0 auto;background:#fff;border-radius:23px;border:1px solid var(--line);text-align:center;padding:56px 55px;box-shadow:var(--shadow)}
.result-icon{width:72px;height:72px;border-radius:50%;background:#d9f5e4;color:var(--teal);font-size:34px;font-weight:900;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.result-card h1{font-size:clamp(27px,4vw,40px);margin:0 0 13px}
.result-card>p:not(.section-kicker){color:var(--muted);font-size:17px;margin-bottom:28px}
.error-number{color:var(--teal);font-size:54px;font-weight:900;margin-bottom:12px}
@media (max-width:1100px){.nav{gap:13px}.nav a{font-size:12.5px}.header-contact{font-size:12.5px;padding-inline:13px}.hero-grid{gap:30px;grid-template-columns:minmax(0,1fr) minmax(335px,.85fr)}.hero h1{font-size:clamp(37px,5vw,63px)}.contact-card{padding:27px 23px}.materials-grid{gap:40px}.footer-main{gap:45px}.faq-grid{gap:45px}}
@media (max-width:860px){.wrap{padding-inline:23px}.section{padding-block:75px}.header-inner{min-height:75px}.menu-toggle{display:flex}.js .nav{display:none;position:absolute;top:75px;inset-inline:0;background:white;padding:15px 24px 22px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 12px 20px rgba(13,42,39,.08);border-bottom:1px solid var(--line)}.js .nav.is-open{display:flex}.nav a{padding:11px 0;font-size:15px}.hero-grid{grid-template-columns:minmax(0,1fr);padding-top:68px;padding-bottom:60px;gap:45px}.hero-copy{max-width:760px}.hero h1{font-size:clamp(40px,7vw,68px)}.hero-panel-wrap{max-width:600px;width:100%;margin:auto}.hero-bottom{display:none}.hero-features{margin-top:23px;padding-top:27px}.services-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.service-card:last-child{grid-column:1/-1}.service-card{min-height:330px}.materials-grid{grid-template-columns:1fr}.science-visual{max-width:700px;width:100%;min-height:320px}.science-visual svg{max-height:340px}.computation-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:30px}.process-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.articles-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-card:last-child:nth-child(odd){grid-column:auto}.faq-grid{grid-template-columns:1fr;gap:25px}.approach-grid{gap:35px}.footer-main{grid-template-columns:1.5fr 1fr 1fr;gap:25px}.article-layout{grid-template-columns:1fr;gap:0}.article-sidebar{display:none}}
@media (max-width:620px){.wrap{padding-inline:18px}.header-inner{min-height:69px}.brand{font-size:21px}.brand img{width:38px;height:38px}.header-contact{display:none}.js .nav{top:69px}.section-heading h2,.materials-copy h2,.approach-grid h2,.faq-grid h2,.bottom-cta h2{font-size:clamp(29px,8vw,40px)}.heading-split{flex-direction:column;align-items:flex-start;gap:16px}.heading-split>p{font-size:14.5px}.hero-grid{padding-top:56px;padding-bottom:48px;gap:30px}.hero-kicker{font-size:12px}.hero h1{font-size:clamp(38px,10vw,54px);margin:22px 0 14px}.hero-description{font-size:15.5px}.hero-cta{gap:9px;margin-top:25px}.hero-cta .button{font-size:12.5px;padding-inline:15px;gap:9px}.hero-features{gap:11px;font-size:11.5px}.hero-panel-wrap{padding:9px 2px}.contact-card{border-radius:18px;padding:22px 18px}.contact-card h2{font-size:27px}.contact-intro{font-size:13px}.lead-form{grid-template-columns:1fr;gap:12px}.privacy-check,.form-submit,.form-note,.form-feedback,.form-field:has(textarea){grid-column:1}.hero-decoration{inset:-14px}.services-grid,.computation-grid,.process-grid,.articles-grid,.related-articles .articles-grid{grid-template-columns:1fr}.service-card:last-child{grid-column:auto}.service-card{min-height:0;padding:24px}.service-card-top{margin-bottom:22px}.service-card p{font-size:14px}.materials-section{padding:74px 0}.materials-copy>p:not(.section-kicker){font-size:14.5px}.science-visual{min-height:280px}.computation-grid{gap:22px}.mini-service{padding-top:16px}.mini-num{margin-bottom:15px}.process-step{padding:6px 0}.heading-centered{text-align:right}.approach-section{padding:65px 0}.approach-grid{grid-template-columns:1fr;gap:18px}.approach-text p{font-size:15px}.article-card{min-height:220px}.faq-list summary{font-size:14.5px}.faq-list details p{padding-left:6px;font-size:13.5px}.bottom-cta-inner{padding-block:70px;flex-direction:column;align-items:flex-start;gap:26px}.bottom-actions{justify-content:flex-start}.footer-main{grid-template-columns:1fr 1fr;gap:35px 15px;padding-top:55px}.footer-about{grid-column:1/-1}.footer-bottom{font-size:11px}.inner-hero{padding:65px 0}.inner-hero p:not(.section-kicker){font-size:15px}.article-layout{padding-top:35px;padding-bottom:70px}.article-heading h1{font-size:33px}.article-lead{font-size:16px}.article-content h2{font-size:21px}.article-content p{font-size:15px}.article-inline-contact{padding:22px 18px}.article-inline-contact h2{font-size:22px}.related-articles .articles-grid{grid-template-columns:1fr}.legal-content{padding-top:45px;padding-bottom:70px}.result-section{padding:60px 0}.result-card{padding:45px 20px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* v2.2: consent-based contact intake and direct messenger shortcuts */
.message-field{grid-column:1/-1}
.messenger-field{grid-column:1/-1}
.messenger-field[hidden]{display:none!important}
.input-hint{font-size:11px;font-weight:500;color:#849b94;line-height:1.6}
.contact-alternative{display:flex;align-items:center;gap:10px;margin:20px 0 14px;color:#8d9f9b;font-weight:700;font-size:12px}
.contact-alternative:before,.contact-alternative:after{content:"";height:1px;flex:1;background:#e4ebe7}
.message-actions{display:flex;gap:10px;flex-wrap:wrap}
.message-action{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:12px;padding:10px 15px;min-height:46px;font-weight:800;font-size:13px;border:1px solid transparent;line-height:1.5;transition:background .2s,border-color .2s,transform .2s}
.message-action:hover{transform:translateY(-2px)}
.message-action svg{display:block;flex-shrink:0;width:21px;height:21px}
.message-actions-contact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.message-actions-contact .message-action-telegram{background:#eaf5ff;color:#0873b6;border-color:#d3e9fc}
.message-actions-contact .message-action-bale{background:#e8f7ee;color:#1b7960;border-color:#d2e8dc}
.message-actions-contact .message-action:hover{filter:brightness(.97)}
.direct-message-note{font-size:11px;color:#879c97;line-height:1.9;margin:10px 0 0}
.message-actions-footer{flex-direction:column;align-items:flex-start;gap:6px}
.message-actions-footer .message-action{padding:0;min-height:27px;color:#b0ccc5;font-size:13.5px;border:0;justify-content:flex-start}
.message-actions-footer .message-action:hover{color:#fff}
.message-actions-footer .message-action svg{width:19px;height:19px}
.message-actions-cta{gap:10px}
.message-actions-cta .message-action{background:rgba(255,255,255,.04);color:#f3fff9;border-color:rgba(230,255,244,.3);font-size:14px;padding-inline:18px}
.message-actions-cta .message-action:hover{border-color:var(--mint);color:var(--mint)}
.quick-contact{transition:opacity .2s,transform .2s;position:fixed;z-index:90;left:22px;bottom:22px;display:flex;align-items:center;flex-direction:column;gap:7px;filter:drop-shadow(0 6px 16px rgba(11,43,39,.13))}
.quick-contact-caption{background:var(--night);color:#effff4;border-radius:99px;padding:2px 11px;font-size:10px;font-weight:800;white-space:nowrap}
.message-actions-dock{display:flex;flex-direction:column;align-items:center;gap:9px}
.message-actions-dock .message-action{width:52px;height:52px;min-height:0;border-radius:17px;color:white;padding:0;box-shadow:0 6px 16px rgba(2,32,30,.16)}
.message-actions-dock .message-action-telegram{background:#198cce}
.message-actions-dock .message-action-bale{background:#168869}
.message-actions-dock .message-action svg{width:25px;height:25px}
.message-actions-dock .message-action span{display:none}
@media (max-width:620px){
  .quick-contact.hide-on-contact{opacity:0;pointer-events:none;transform:translateY(10px)}
  .message-actions-contact{gap:8px}
  .message-action{font-size:12px;padding-inline:10px}
  .quick-contact{left:13px;bottom:calc(12px + env(safe-area-inset-bottom));gap:4px}
  .quick-contact-caption{display:none}
  .message-actions-dock .message-action{height:45px;width:45px;border-radius:15px}
  .message-actions-dock .message-action svg{width:22px;height:22px}
}