:root{
  --navy-deep:#070b12; --navy:#0b1119; --navy-panel:#111a26;
  --gray:#8b96a5; --gray-light:#c3cad4; --white:#f4f6f8;
  --blue:#2f7de1; --blue-dim:#1f5cb0;
  --line:rgba(255,255,255,0.09); --radius:6px; --wrap-max:1240px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--navy-deep);color:var(--white);font-family:'Inter',sans-serif;line-height:1.55;overflow-x:hidden;font-size:16px;}
h1,h2,h3,h4{font-family:'Fraunces',serif;font-weight:600;letter-spacing:-0.01em;line-height:1.15;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}

.wrap{max-width:var(--wrap-max);margin:0 auto;padding:0 24px;}
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;font-size:14px;font-weight:600;border-radius:var(--radius);border:1px solid transparent;transition:transform .15s,box-shadow .15s;}
.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(47,125,225,.28);}
.btn-ghost{border-color:var(--line);color:var(--white);}
.btn-ghost:hover{border-color:var(--gray-light);}
.btn-sm{padding:9px 18px;font-size:12.5px;}
.btn-block{width:100%;}
.link-danger{background:none;border:none;color:#ff6b6b;font-size:13px;padding:0;}
.link-danger:hover{text-decoration:underline;}

/* NAV */
.site-nav{position:fixed;top:0;left:0;right:0;z-index:200;background:rgba(7,11,18,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{width:30px;height:30px;background:var(--blue);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:'Fraunces',serif;font-weight:700;font-size:16px;}
.brand-text{font-family:'Fraunces',serif;font-weight:700;font-size:17px;letter-spacing:.03em;}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--gray-light);}
.nav-links a:not(.btn):hover{color:var(--white);}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px;}
.nav-toggle span{width:22px;height:2px;background:var(--white);}

main{padding-top:72px;}

/* NAV SEARCH */
.nav-search{display:flex;align-items:center;gap:8px;background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:9px 14px;flex:1;max-width:420px;margin:0 24px;}
.nav-search svg{width:16px;height:16px;stroke:var(--gray);fill:none;flex-shrink:0;}
.nav-search input{background:none;border:none;outline:none;color:var(--white);font-size:13.5px;width:100%;}
.nav-search input::placeholder{color:var(--gray);}
.nav-search:focus-within{border-color:var(--blue);}
.nav-search-mobile{display:none;width:100%;max-width:none;margin:0 0 8px;}

/* HERO SEARCH */
.search-form-lg{display:flex;gap:10px;max-width:560px;margin-bottom:28px;}
.search-form-lg input{flex:1;background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;color:var(--white);font-size:15px;}
.search-form-lg input:focus{outline:none;border-color:var(--blue);}
.search-form-lg input::placeholder{color:var(--gray);}

/* BREADCRUMB */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--gray);margin-bottom:16px;}
.breadcrumb a{color:var(--gray-light);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb span:last-child{color:var(--white);}

/* CATEGORY FILTER / SORT BAR */
.cat-filter-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:18px;}
.cat-filter-bar input[type="text"]{flex:1;min-width:220px;background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:11px 16px;color:var(--white);font-size:14px;}
.cat-filter-bar input[type="text"]:focus{outline:none;border-color:var(--blue);}
.cat-filter-bar select{background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:11px 14px;color:var(--white);font-size:13.5px;}
.sort-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:18px;}
.sort-form{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--gray-light);}
.sort-form select{background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:9px 12px;color:var(--white);font-size:13.5px;}
.result-count{font-size:13px;color:var(--gray);margin-bottom:18px;}
section{padding:90px 0;}
.reveal{opacity:1;} /* Myriad forgoes scroll-reveal for simplicity/perf on catalog pages */

/* HERO */
.hero{position:relative;padding:100px 0 70px;background:radial-gradient(ellipse 900px 500px at 80% 10%,rgba(47,125,225,.16),transparent 60%),var(--navy-deep);}
.hero-inner{max-width:760px;}
.hero h1{font-size:clamp(36px,5.4vw,64px);margin:20px 0 22px;}
.hero h1 em{font-style:normal;color:var(--blue);}
.hero p{font-size:17px;color:var(--gray-light);margin-bottom:32px;}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:30px;font-size:12.5px;color:var(--gray);}
.hero-meta b{display:block;font-family:'Fraunces',serif;font-size:24px;color:var(--white);font-weight:700;}

.section-head{max-width:640px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3.4vw,40px);margin:14px 0 14px;}
.section-head p{color:var(--gray-light);font-size:15.5px;}
.light{background:var(--navy);}

/* CATEGORY GRID */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.cat-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--navy-panel);transition:transform .2s,border-color .2s;}
.cat-card:hover{transform:translateY(-3px);border-color:rgba(47,125,225,.4);}
.cat-card h4{font-size:16px;margin-bottom:8px;}
.cat-card p{font-size:12.5px;color:var(--gray-light);margin-bottom:14px;min-height:32px;}
.cat-count{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--blue);}

/* ADVANTAGE GRID */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.adv-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:var(--navy-panel);}
.adv-card h4{font-size:16px;margin-bottom:8px;}
.adv-card p{font-size:13.5px;color:var(--gray-light);}

/* CTA BAND */
.cta-band{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;border:1px solid var(--line);border-radius:var(--radius);padding:44px;background:linear-gradient(120deg,var(--navy-panel),transparent);}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{color:var(--gray-light);font-size:14.5px;}

/* PAGE HERO (category/product/rfq/login pages) */
.page-hero{padding:130px 0 40px;}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);margin:14px 0 12px;}
.page-hero p{color:var(--gray-light);font-size:15.5px;}

/* PRODUCTS */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--navy-panel);display:block;transition:transform .2s,border-color .2s;}
.card:hover{transform:translateY(-3px);border-color:rgba(47,125,225,.35);}
.thumb{aspect-ratio:16/10;background:var(--navy);overflow:hidden;}
.thumb img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:18px;}
.card-body h4{font-size:15px;margin-bottom:6px;}
.seller-name{font-size:12.5px;color:var(--gray);margin-bottom:6px;}
.price{font-family:'Fraunces',serif;font-weight:700;font-size:17px;}
.price span,.price-lg span{font-family:'Inter',sans-serif;font-weight:400;font-size:12px;color:var(--gray);}
.empty-state{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--gray-light);}
.empty-state p{margin-bottom:18px;}

.product-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;}
.thumb-lg{border-radius:var(--radius);border:1px solid var(--line);}
.product-detail-grid h1{font-size:clamp(24px,3vw,34px);margin-bottom:8px;}
.price-lg{font-family:'Fraunces',serif;font-weight:700;font-size:28px;margin:16px 0 4px;}
.moq{font-size:13px;color:var(--gray);margin-bottom:18px;}
.desc{color:var(--gray-light);font-size:15px;margin-bottom:26px;}

/* FORMS (shared: auth, rfq, register, admin) */
.stack-form{display:flex;flex-direction:column;gap:16px;max-width:100%;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field label{display:block;font-size:12.5px;color:var(--gray-light);margin-bottom:7px;}
.field input,.field select,.field textarea,.stack-form input,.stack-form select,.stack-form textarea{
  width:100%;background:var(--navy-panel);border:1px solid var(--line);border-radius:var(--radius);padding:13px 16px;color:var(--white);
}
.field input:focus,.field select:focus,.field textarea:focus,.stack-form input:focus,.stack-form select:focus,.stack-form textarea:focus{outline:none;border-color:var(--blue);}
.field-hint{font-size:12px;color:var(--gray);margin-bottom:4px;}
.form-alert{padding:13px 18px;border-radius:var(--radius);font-size:14px;margin-bottom:16px;}
.form-alert.success{background:rgba(60,190,120,.12);border:1px solid rgba(60,190,120,.35);color:#7fe0ab;}
.form-alert.error{background:rgba(255,90,90,.1);border:1px solid rgba(255,90,90,.35);color:#ff9b9b;}
.form-alert a{color:var(--blue);text-decoration:underline;}
.demo-creds{margin-top:22px;padding:16px;border:1px dashed var(--line);border-radius:var(--radius);font-size:12px;color:var(--gray-light);line-height:1.9;}
.auth-footnote{margin-top:20px;font-size:13.5px;color:var(--gray);text-align:center;}
.auth-footnote a{color:var(--blue);}

/* FOOTER */
.site-footer{border-top:1px solid var(--line);padding:56px 0 32px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px;}
.foot-grid h5{font-size:11.5px;color:var(--gray);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;}
.foot-grid a{display:block;font-size:14px;color:var(--white);margin-bottom:8px;}
.foot-grid a:hover{color:var(--blue);}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:24px;border-top:1px solid var(--line);font-size:12.5px;color:var(--gray);}

/* DASHBOARD (buyer/seller) */
.dash-shell{padding:140px 0 90px;min-height:100vh;}
.dash-head{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:16px;margin-bottom:32px;}
.dash-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:32px;}
.dash-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--navy-panel);}
.dash-card h5{font-size:11.5px;color:var(--gray);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;}
.dash-card .val{font-family:'Fraunces',serif;font-size:30px;font-weight:700;}
.panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--navy-panel);overflow:hidden;}
.panel-head{padding:18px 22px;border-bottom:1px solid var(--line);}
.panel-head h3{font-size:16px;}
.panel-body{padding:18px 22px;overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{text-align:left;font-size:11px;color:var(--gray);text-transform:uppercase;letter-spacing:.05em;padding:9px 10px;border-bottom:1px solid var(--line);}
td{padding:12px 10px;border-bottom:1px solid var(--line);color:var(--gray-light);}
tr:last-child td{border-bottom:none;}
.kv-table td{border:none;padding:5px 10px 5px 0;font-size:13px;}
.kv-table td:first-child{color:var(--gray);width:120px;}
.badge{font-size:10.5px;padding:4px 10px;border-radius:20px;text-transform:capitalize;}
.badge.published{background:rgba(60,190,120,.14);color:#7fe0ab;}
.badge.draft{background:rgba(255,180,60,.14);color:#ffcf7f;}
.row-actions{display:flex;gap:12px;white-space:nowrap;align-items:center;}
.row-actions a{color:var(--blue);font-size:13px;}

/* Seller queue */
.seller-row-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:8px;}

/* RFQ/messages shared card */
.msg-list{display:flex;flex-direction:column;gap:14px;}
.msg-card{border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;background:var(--navy-panel);}
.msg-card.unread{border-color:rgba(47,125,225,.4);}
.msg-head{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:8px;font-size:14px;}
.msg-email{color:var(--gray);font-size:12.5px;margin-left:6px;}
.msg-date{color:var(--gray);font-size:12px;}
.msg-subject{font-weight:600;margin-bottom:8px;font-size:14px;}
.msg-body{color:var(--gray-light);font-size:13.5px;margin-bottom:14px;}
.msg-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap;}
.pill-count{background:var(--blue);color:#fff;font-size:10px;padding:2px 7px;border-radius:20px;margin-left:6px;}

/* =====================================================================
   RESPONSIVE — phone / tablet / laptop / desktop / large screens
   ===================================================================== */
@media(min-width:1600px){:root{--wrap-max:1440px;} body{font-size:17px;} section{padding:120px 0;}}

@media(max-width:1199px){
  .cat-grid{grid-template-columns:repeat(3,1fr);}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
}

@media(max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .product-detail-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}

@media(max-width:900px){
  .nav-search{display:none;}
  .nav-search-mobile{display:flex;}
  .nav-links{position:fixed;top:72px;left:0;right:0;bottom:0;background:var(--navy-deep);flex-direction:column;align-items:flex-start;padding:32px 24px;gap:20px;font-size:17px;transform:translateX(100%);transition:transform .25s ease;}
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{display:flex;}
  section{padding:64px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .form-row{grid-template-columns:1fr;}
  .dash-grid{grid-template-columns:1fr 1fr;}
}

@media(max-width:640px){
  .cat-grid,.product-grid,.adv-grid{grid-template-columns:1fr;}
  .dash-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .hero-ctas{flex-direction:column;}
  .hero-ctas .btn{width:100%;}
  .wrap{padding:0 18px;}
}