@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&display=swap');
:root{--navy:#10254c;--navy2:#173568;--gold:#c9a15b;--gold2:#e4c58b;--ink:#17243b;--muted:#68758a;--paper:#f7f8fb;--line:#e5e9f0}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Vazirmatn,Tahoma,sans-serif;color:var(--ink);background:#fff;overflow-x:hidden}
a{color:inherit;text-decoration:none}.container{width:min(1160px,92%);margin:auto}
.topline{background:var(--navy);color:#e8edf7;font-size:11px;padding:9px 0}.topline .inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
header{position:sticky;top:0;z-index:30;background:#ffffffed;backdrop-filter:blur(15px);border-bottom:1px solid #e8ebf0}
.nav{height:86px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand img{width:205px;max-height:72px;object-fit:contain;display:block}
nav{display:flex;align-items:center;gap:19px;font-size:12px;font-weight:700;color:#34435d}nav a{padding:9px 0;position:relative}nav a:after{content:"";position:absolute;bottom:0;right:0;width:0;height:2px;background:var(--gold);transition:.25s}nav a:hover:after,nav a.active:after{width:100%}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:8px;border:1px solid var(--navy);background:var(--navy);color:#fff;font:700 12px Vazirmatn;cursor:pointer;transition:.25s}.btn:hover{transform:translateY(-3px);box-shadow:0 10px 25px #10254c25}.btn.outline{background:transparent;color:var(--navy)}
.menu{display:none;background:none;border:0;font-size:25px;color:var(--navy)}
.hero{position:relative;min-height:390px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:35px;padding:58px 0;overflow:hidden}
.hero:before{content:"";position:absolute;z-index:-1;inset:0 40% 0 -20%;background:radial-gradient(ellipse at center,#e8edf5 0,transparent 68%)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#9a7537;font-size:11px;font-weight:800;background:#f8f1e5;border:1px solid #ead9b9;padding:8px 13px;border-radius:30px}
.dot{width:7px;height:7px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 5px #c9a15b20}
h1{font-size:clamp(32px,4vw,52px);line-height:1.45;color:var(--navy);margin:17px 0 12px;font-weight:900}h1 span{color:#b38b4b}
.lead{font-size:14px;color:var(--muted);line-height:2.2;max-width:650px}
.hero-art{height:300px;position:relative;display:grid;place-items:center;perspective:900px}
.tile{width:205px;height:205px;border-radius:20px;background:linear-gradient(145deg,#fff,#e4e9f0);border:1px solid #d9e0e9;box-shadow:20px 22px 50px #15294a20;transform:rotate(-13deg) rotateY(-18deg);animation:float 6s ease-in-out infinite;position:relative}
.tile:before{content:"";position:absolute;inset:13px;border:1px solid #d7c29d;border-radius:14px;background:linear-gradient(135deg,#ffffffb5,#edf1f6a8),repeating-linear-gradient(45deg,transparent 0 18px,#d5dce6 19px 20px)}
.tile:after{content:"CERACHEM";position:absolute;bottom:25px;left:0;right:0;text-align:center;color:#183568;font-size:15px;font-weight:900;letter-spacing:3px}
.ring{position:absolute;width:275px;height:275px;border:1px solid #c9a15b88;border-radius:50%;transform:rotateX(68deg) rotateZ(-25deg);animation:spin 22s linear infinite}.ring.r2{width:325px;height:325px;border-color:#17356835;animation-duration:30s;animation-direction:reverse}
@keyframes float{50%{transform:translateY(-13px) rotate(-9deg) rotateY(-10deg)}}@keyframes spin{to{transform:rotateX(68deg) rotateZ(335deg)}}
.page-banner{background:linear-gradient(115deg,#10254c,#1b3b6d);color:#fff;padding:46px 0;position:relative;overflow:hidden}.page-banner:after{content:"C";position:absolute;left:7%;top:-95px;font-size:260px;font-weight:900;color:#ffffff09}.page-banner h1{color:#fff;font-size:34px;margin:0 0 8px}.page-banner p{color:#d1d9e8;font-size:12px;margin:0}.crumb{font-size:11px;color:var(--gold2);margin-bottom:13px}
.section{padding:65px 0}.soft{background:var(--paper)}.head{text-align:center;max-width:720px;margin:0 auto 32px}.kicker{color:#a17b3e;font-size:11px;font-weight:900;letter-spacing:1px}.head h2{font-size:29px;color:var(--navy);margin:8px 0}.head p{font-size:12px;line-height:2;color:var(--muted);margin:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;transition:.3s}.card:hover{transform:translateY(-6px);box-shadow:0 17px 35px #10254c12;border-color:#d8c39c}.card-body{padding:19px}.card h3{font-size:15px;color:var(--navy);margin:0 0 7px}.card p{font-size:11px;line-height:2;color:var(--muted);margin:0 0 12px}
.product-art{height:155px;display:grid;place-items:center;background:linear-gradient(145deg,#eff2f7,#e5eaf1);position:relative;overflow:hidden}.product-art:before{content:"";position:absolute;width:175px;height:175px;border-radius:50%;border:1px solid #c9a15b77;transform:rotateX(65deg)}.sample{width:90px;height:90px;background:linear-gradient(145deg,#fff,#b8c2d0);border:7px solid #fff;box-shadow:0 14px 28px #10254c2b;transform:rotate(-12deg);z-index:1}.sample.gold{background:linear-gradient(145deg,#f8e9c7,#a77d3d)}.sample.blue{background:linear-gradient(145deg,#dce8f7,#5d769e)}.sample.dark{background:linear-gradient(145deg,#626c7a,#18243a)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.visual{min-height:290px;background:linear-gradient(145deg,#142e5b,#0c1b38);border-radius:16px;display:grid;place-items:center;position:relative;overflow:hidden}.visual:before,.visual:after{content:"";position:absolute;width:300px;height:300px;border:1px solid #c9a15b66;border-radius:50%;transform:rotateX(65deg) rotateZ(30deg)}.visual:after{width:370px;height:370px;transform:rotateX(65deg) rotateZ(-35deg)}.visual img{width:78%;max-width:350px;background:#fff;padding:8px;border-radius:6px;z-index:1}.copy h2{color:var(--navy);font-size:26px;margin:8px 0 12px}.copy p{font-size:13px;color:var(--muted);line-height:2.2}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:20px}.fact{padding:13px;border-right:3px solid var(--gold);background:#f8f6f1;border-radius:5px}.fact b{display:block;color:var(--navy);font-size:12px}.fact span{color:var(--muted);font-size:10px}
.iconcard{padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px;transition:.3s}.iconcard:hover{transform:translateY(-5px);background:#fdfbf7}.ico{font-size:25px;color:var(--gold)}.iconcard h3{font-size:14px;color:var(--navy);margin:10px 0 5px}.iconcard p{font-size:11px;color:var(--muted);line-height:2;margin:0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.step{text-align:center;padding:15px}.step b{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;margin:auto;background:var(--navy);color:var(--gold2);box-shadow:0 0 0 7px #c9a15b20}.step h3{font-size:13px;color:var(--navy)}.step p{font-size:10px;color:var(--muted);line-height:1.9}
.cta{background:linear-gradient(115deg,#10254c,#1c3c70);color:white;border-radius:17px;padding:32px;display:flex;align-items:center;justify-content:space-between;gap:20px}.cta h2{margin:0 0 7px;font-size:23px}.cta p{color:#d1d9e8;font-size:11px;margin:0}.cta .btn{background:var(--gold);border-color:var(--gold);color:#17243b}
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:25px}.contact-info{background:var(--navy);color:#fff;padding:27px;border-radius:14px}.contact-info h3{margin-top:0}.contact-info p{font-size:11px;line-height:2;color:#d3dced}.line{padding:13px 0;border-top:1px solid #ffffff22;font-size:11px}.line b{display:block;color:var(--gold2);margin-bottom:4px}.form{padding:25px;border:1px solid var(--line);border-radius:14px}.form h3{color:var(--navy);margin-top:0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form label{font-size:10px;color:#536178}.form input,.form textarea,.form select{width:100%;margin-top:6px;padding:11px;border:1px solid #dfe4ec;border-radius:7px;font:11px Vazirmatn;background:#fbfcfe}.form textarea{min-height:95px}.full{grid-column:1/-1}
footer{background:#0b1932;color:#d1d9e8;padding:38px 0 18px}.footgrid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px}.footgrid img{width:175px;background:#fff;padding:5px;border-radius:5px}.footgrid p,.footgrid a{font-size:10px;line-height:2.2;color:#b6c2d6}.footgrid h4{color:var(--gold2)}.copyright{border-top:1px solid #ffffff20;margin-top:25px;padding-top:15px;font-size:9px;color:#9eabc1;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.reveal{opacity:0;transform:translateY(20px);transition:.7s}.reveal.visible{opacity:1;transform:none}.toast{position:fixed;bottom:18px;left:18px;background:var(--navy);color:#fff;padding:12px 16px;border-radius:9px;opacity:0;transform:translateY(10px);transition:.3s;z-index:80;font-size:11px;pointer-events:none}.toast.show{opacity:1;transform:none}
@media(max-width:950px){nav{display:none;position:absolute;top:86px;right:0;left:0;background:#fff;padding:18px;box-shadow:0 12px 20px #10254c15;flex-direction:column;align-items:stretch}.nav.open nav{display:flex}.menu{display:block}.nav>.btn{display:none}.hero{grid-template-columns:1fr;text-align:center}.lead{margin:auto}.hero .actions{justify-content:center}.grid3{grid-template-columns:1fr 1fr}.two-col,.contact{grid-template-columns:1fr}.footgrid{grid-template-columns:1fr 1fr}.footgrid>div:first-child{grid-column:1/-1}}
@media(max-width:600px){.brand img{width:165px}.nav{height:74px}.hero{padding:38px 0}.hero-art{height:250px}.tile{width:170px;height:170px}.ring{width:235px;height:235px}.ring.r2{width:275px;height:275px}.grid3{grid-template-columns:1fr}.section{padding:48px 0}.page-banner{padding:35px 0}.page-banner h1{font-size:27px}.steps{grid-template-columns:1fr 1fr}.cta{display:block}.cta .btn{margin-top:18px}.fields{grid-template-columns:1fr}.footgrid{grid-template-columns:1fr}.footgrid>div:first-child{grid-column:auto}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}}

/* CERACHEM premium 3D refinement */
:root{--navy:#0b1d3a;--navy2:#17396d;--gold:#c7a05a;--gold2:#ead3a5}
body{background:radial-gradient(circle at 82% 4%,#f4f0e8 0,transparent 22%),#fff}
.topline{background:linear-gradient(90deg,#08162d,#17396d,#08162d);letter-spacing:.1px}
header{box-shadow:0 8px 30px #0b1d3a0a}
.brand img{filter:drop-shadow(0 5px 8px #10254c14);transition:.35s}.brand:hover img{transform:scale(1.035)}
.hero{min-height:470px}.hero:before{inset:-10% 32% -10% -15%;background:radial-gradient(ellipse at center,#e7edf7 0,transparent 68%)}
.hero-art{transform-style:preserve-3d}.tile{box-shadow:25px 30px 65px #10254c28, inset 0 0 0 1px #fff;transform-style:preserve-3d}.tile:before{box-shadow:inset 0 0 30px #fff9}.tile:after{transform:translateZ(10px)}
.ring{box-shadow:0 0 28px #c9a15b18}.card,.iconcard{box-shadow:0 10px 30px #10254c08}.card:hover{transform:translateY(-9px) rotateX(2deg);box-shadow:0 25px 45px #10254c18}
.product-art{background:radial-gradient(circle at 50% 35%,#fff,#e8edf4 72%);perspective:700px}.sample{transform:rotate(-12deg) rotateY(-20deg);transition:.5s;box-shadow:12px 18px 35px #10254c25,inset 0 0 0 2px #ffffffb0}.card:hover .sample{transform:rotate(-5deg) rotateY(12deg) translateY(-7px) scale(1.06)}
.page-banner{background:radial-gradient(circle at 15% 30%,#294d82 0,transparent 30%),linear-gradient(115deg,#091a36,#1a3d70 72%,#10254c)}
.page-banner:after{content:'CERACHEM';font-size:clamp(65px,12vw,150px);left:3%;top:5px;letter-spacing:9px;font-weight:900;color:#ffffff08;white-space:nowrap}
.section{position:relative}.kicker{letter-spacing:1.5px}.cta{box-shadow:0 22px 50px #10254c1a;position:relative;overflow:hidden}.cta:after{content:'C';position:absolute;left:30%;top:-70px;font-size:220px;font-weight:900;color:#ffffff09;pointer-events:none}.btn{box-shadow:0 8px 18px #10254c15}.btn:hover{box-shadow:0 13px 27px #10254c25}
.faq-list{max-width:850px;margin:auto}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:17px 20px;margin:12px 0;box-shadow:0 8px 25px #10254c07}.faq-list summary{cursor:pointer;font-weight:800;color:var(--navy);font-size:13px}.faq-list details p{font-size:12px;line-height:2.2;color:var(--muted);margin:14px 0 0}.faq-list details[open]{border-color:#d7c092;background:linear-gradient(120deg,#fff,#fdfbf7)}
@media(max-width:600px){.hero{min-height:auto}.page-banner:after{font-size:64px;top:30px}.topline{font-size:9px}}