/* ============================================
   Arion Chem — Custom Website Styles
   Modern Industrial Clean
   ============================================ */

:root{
  --navy:#0d1b2a;
  --navy-2:#14283d;
  --navy-3:#1b3654;
  --brand:#3A4F66;
  --teal:#2a91c2;
  --teal-2:#007ea7;
  --accent:#54c6e8;
  --white:#ffffff;
  --offwhite:#f4f7fa;
  --grey:#6b7686;
  --light-grey:#e7ecf1;
  --dark-text:#16202e;
  --radius:14px;
  --shadow:0 10px 40px rgba(13,27,42,.12);
  --shadow-lg:0 20px 60px rgba(13,27,42,.20);
  --maxw:1200px;
  --transition:.35s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--dark-text);
  line-height:1.65;
  background:var(--white);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
h1,h2,h3,h4{font-family:'Manrope','Inter',sans-serif;line-height:1.2;color:var(--navy);}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container.wide{max-width:1320px;}

.icon{width:1.1em;height:1.1em;fill:currentColor;vertical-align:-0.2em;}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;
  padding:12px 18px;z-index:9999;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;
  cursor:pointer;border:2px solid transparent;transition:var(--transition);
  font-family:'Manrope',sans-serif;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--teal-2);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-outline:hover{background:var(--brand);color:#fff;}
.btn-light{background:#fff;color:var(--navy);}
.btn-light:hover{background:var(--accent);color:var(--navy);transform:translateY(-2px);}
.btn-lg{padding:16px 32px;font-size:16px;}
.btn-block{width:100%;}
.arrow{transition:transform var(--transition);display:inline-block;}
a:hover .arrow{transform:translateX(4px);}

/* ---------- Top bar ---------- */
.topbar{background:var(--navy);color:#cfd9e6;font-size:14px;}
.topbar-inner{display:flex;align-items:center;gap:28px;padding-top:9px;padding-bottom:9px;flex-wrap:wrap;}
.topbar-item{display:flex;align-items:center;gap:7px;}
.topbar-item .icon{color:var(--accent);}
.topbar-fill{margin-left:auto;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--light-grey);
  transition:box-shadow var(--transition);
}
.site-header.scrolled{box-shadow:0 4px 24px rgba(13,27,42,.09);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-logo{height:42px;width:auto;}
.brand-text{font-family:'Manrope';font-weight:800;font-size:24px;color:var(--navy);}
.brand-text em{font-style:normal;color:var(--teal-2);}
.brand-text-white{color:#fff;}
.main-nav{display:flex;align-items:center;gap:8px;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav ul a{
  padding:10px 15px;border-radius:8px;font-weight:600;font-size:15px;
  color:var(--navy);transition:var(--transition);position:relative;
}
.main-nav ul a:hover{color:var(--teal-2);background:var(--offwhite);}
.main-nav ul a.active{color:var(--teal-2);}
.main-nav ul a.active::after{
  content:'';position:absolute;left:15px;right:15px;bottom:5px;height:2px;
  background:var(--teal-2);border-radius:2px;
}
.nav-cta{margin-left:14px;}
.has-dropdown{position:relative;}
.dropdown{
  position:absolute;top:100%;left:0;min-width:220px;background:#fff;
  border:1px solid var(--light-grey);border-radius:12px;box-shadow:var(--shadow-lg);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(12px);
  transition:var(--transition);z-index:1200;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(6px);}
.dropdown a{display:block;padding:10px 14px;border-radius:8px;}
.dropdown a:hover{background:var(--offwhite);color:var(--teal-2);}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:3px;transition:var(--transition);}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  background-size:cover;background-position:center;color:#fff;padding:120px 0 100px;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,27,42,.90) 0%,rgba(13,27,42,.72) 45%,rgba(13,27,42,.45) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:760px;color:#fff;}
.hero-kicker{
  display:inline-block;font-size:14px;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent);font-weight:700;margin-bottom:20px;
  border:1px solid rgba(84,198,232,.4);padding:8px 16px;border-radius:50px;background:rgba(84,198,232,.08);
}
.hero-title{font-size:clamp(34px,5.5vw,58px);font-weight:800;color:#fff;margin-bottom:22px;}
.hero-title .accent{color:var(--accent);}
.hero-sub{font-size:clamp(16px,2vw,20px);color:#dfe8f2;max-width:640px;margin-bottom:34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--offwhite);}
.section-dark{background:var(--navy);color:#dbe4ef;}
.section-dark .section-title,.section-dark h2,.section-dark h3{color:#fff;}
.section-dark .lead{color:#aebbd0;}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center;}
.section-kicker{
  display:inline-block;font-size:13px;letter-spacing:2px;text-transform:uppercase;
  color:var(--teal-2);font-weight:700;margin-bottom:12px;
}
.section-dark .section-kicker{color:var(--accent);}
.section-title{font-size:clamp(28px,4vw,42px);font-weight:800;margin-bottom:16px;}
.section-head p,.lead{color:var(--grey);font-size:17px;}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.two-col-reverse .col:first-child{order:2;}
.two-col-reverse .col:last-child{order:1;}
.rounded-img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0;}
.pill{
  padding:8px 18px;border-radius:50px;background:var(--offwhite);border:1px solid var(--light-grey);
  font-weight:600;font-size:14px;color:var(--navy);
}
.section-dark .pill{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15);color:#e6edf5;}

/* ---------- Product grid ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.product-card{
  background:#fff;border:1px solid var(--light-grey);border-radius:var(--radius);
  padding:30px 24px;transition:var(--transition);position:relative;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 4px 18px rgba(13,27,42,.05);
}
.product-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--teal-2));transform:scaleX(0);
  transform-origin:left;transition:var(--transition);
}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent;}
.product-card:hover::before{transform:scaleX(1);}
.product-icon{
  width:58px;height:58px;border-radius:14px;background:var(--offwhite);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--teal-2);
  transition:var(--transition);
}
.product-icon svg{width:30px;height:30px;}
.product-card:hover .product-icon{background:var(--brand);color:#fff;}
.product-name{font-size:18px;font-weight:700;margin-bottom:10px;}
.product-desc{font-size:14px;color:var(--grey);margin-bottom:16px;flex:1;}
.product-link{font-weight:600;font-size:14px;color:var(--teal-2);}

/* ---------- Features ---------- */
.feature-list{display:flex;flex-direction:column;gap:24px;}
.feature{display:flex;gap:18px;}
.feature-icon{
  flex-shrink:0;width:52px;height:52px;border-radius:12px;background:var(--accent);
  color:var(--navy);display:flex;align-items:center;justify-content:center;
}
.feature-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2;}
.feature h3{font-size:18px;font-weight:700;margin-bottom:5px;}
.section-dark .feature-icon{background:rgba(84,198,232,.16);color:var(--accent);}
.feature p{color:var(--grey);font-size:15px;}
.section-dark .feature p{color:#aebbd0;}

/* ---------- Stats ---------- */
.stats-section{background:linear-gradient(135deg,var(--navy),var(--navy-3));color:#fff;position:relative;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center;}
.stat-number{font-family:'Manrope';font-size:clamp(38px,5vw,58px);font-weight:800;color:var(--accent);}
.stat-plus{font-size:28px;font-weight:800;color:var(--accent);}
.stat-label{display:block;margin-top:6px;color:#c7d4e2;font-size:15px;font-weight:500;}

/* ---------- Testimonials ---------- */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.testimonial-card{
  background:#fff;border:1px solid var(--light-grey);border-radius:var(--radius);
  padding:28px;box-shadow:0 6px 24px rgba(13,27,42,.06);display:flex;flex-direction:column;
  transition:var(--transition);
}
.testimonial-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.stars{color:#f5a623;letter-spacing:2px;margin-bottom:14px;font-size:15px;}
.testimonial-text{font-size:15px;color:var(--dark-text);font-style:italic;flex:1;margin-bottom:20px;}
.testimonial-author{display:flex;align-items:center;gap:12px;border-top:1px solid var(--light-grey);padding-top:16px;}
.author-avatar{
  width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;flex-shrink:0;
}
.testimonial-author strong{display:block;font-size:15px;color:var(--navy);}
.author-location{font-size:13px;color:var(--grey);}

/* ---------- CTA ---------- */
.cta-section{
  background:linear-gradient(120deg,var(--brand),var(--teal-2));color:#fff;padding:72px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-content h2{color:#fff;font-size:clamp(24px,3.5vw,38px);font-weight:800;margin-bottom:10px;}
.cta-content p{color:rgba(255,255,255,.92);font-size:17px;max-width:600px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#aebbd0;padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:48px;padding-bottom:48px;}
.footer-col h4{color:#fff;font-size:17px;margin-bottom:20px;position:relative;padding-bottom:10px;}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:32px;height:3px;background:var(--accent);border-radius:3px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{transition:color var(--transition);}
.footer-col ul a:hover{color:var(--accent);}
.footer-about p{margin-top:18px;font-size:14px;}
.brand-footer{margin-bottom:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;}
.footer-contact .icon{color:var(--accent);margin-top:3px;flex-shrink:0;}
.footer-contact a:hover{color:var(--accent);}
.footer-form-btn{margin-top:6px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:14px;color:#8fa0b5;}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;background-size:cover;background-position:center;color:#fff;
  padding:140px 0 110px;text-align:center;
}
.page-hero-overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,27,42,.85),rgba(13,27,42,.6));
}
.page-hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto;}
.page-hero-title{font-size:clamp(32px,5vw,52px);font-weight:800;color:#fff;margin-bottom:16px;}
.page-hero-sub{font-size:18px;color:#dfe8f2;max-width:640px;margin:0 auto;}
.page-hero .hero-kicker{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.1);}

/* ---------- Check list ---------- */
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 28px;margin-top:8px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--dark-text);}
.check-list .check{color:var(--teal-2);flex-shrink:0;width:20px;height:20px;margin-top:2px;}

/* ---------- Category panel ---------- */
.category-panel{
  background:linear-gradient(150deg,var(--navy),var(--navy-3));color:#fff;border-radius:var(--radius);
  padding:50px 40px;position:sticky;top:100px;box-shadow:var(--shadow-lg);
}
.category-panel .category-count{
  font-family:'Manrope';font-size:64px;font-weight:800;color:var(--accent);display:block;line-height:1;margin-bottom:14px;
}
.category-panel h3{color:#fff;font-size:26px;margin-bottom:12px;}
.category-panel p{color:#aebbd0;margin-bottom:26px;}

/* ---------- Highlight cards ---------- */
.highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.highlight-card{
  background:var(--navy-2);border-radius:var(--radius);overflow:hidden;transition:var(--transition);
  border:1px solid rgba(255,255,255,.08);
}
.highlight-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.highlight-card img{height:190px;width:100%;object-fit:cover;}
.highlight-body{padding:26px;color:#fff;}
.highlight-body h3{color:#fff;font-size:20px;margin-bottom:8px;}
.highlight-body p{color:#aebbd0;font-size:14px;margin-bottom:16px;}
.highlight-card .product-link{color:var(--accent);}

/* ---------- Info / form ---------- */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.info-card{
  background:#fff;border:1px solid var(--light-grey);border-radius:var(--radius);padding:24px;
  display:flex;gap:16px;transition:var(--transition);box-shadow:0 4px 16px rgba(13,27,42,.05);
}
.info-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.info-icon{
  width:48px;height:48px;border-radius:12px;background:var(--offwhite);color:var(--teal-2);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.info-icon svg{width:24px;height:24px;}
.info-card h3{font-size:16px;font-weight:700;margin-bottom:5px;}
.info-card p{font-size:14px;color:var(--grey);}
.info-card a{color:var(--teal-2);font-weight:600;}

.form-card{
  background:#fff;border:1px solid var(--light-grey);border-radius:var(--radius);
  padding:40px;box-shadow:var(--shadow);
}
.form-title{font-size:26px;font-weight:800;margin-bottom:6px;}
.form-sub{color:var(--grey);margin-bottom:26px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-group{margin-bottom:20px;}
label{display:block;font-weight:600;font-size:14px;margin-bottom:8px;color:var(--navy);}
input,textarea{
  width:100%;padding:14px 16px;border:1.5px solid var(--light-grey);border-radius:10px;
  font-size:15px;font-family:'Inter',sans-serif;transition:var(--transition);background:var(--offwhite);
}
input:focus,textarea:focus{outline:none;border-color:var(--teal-2);background:#fff;box-shadow:0 0 0 4px rgba(42,145,194,.12);}
textarea{resize:vertical;}
.form-success{
  background:#e8f7ee;border:1px solid #a7e3c0;color:#1d7a44;padding:14px 18px;border-radius:10px;margin-bottom:20px;font-weight:500;
}
.form-error{
  background:#fdeeee;border:1px solid #f5c2c2;color:#b3261e;padding:14px 18px;border-radius:10px;margin-bottom:20px;font-weight:500;
}

/* ---------- Data table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--light-grey);background:#fff;box-shadow:var(--shadow);}
.data-table{width:100%;border-collapse:collapse;min-width:760px;}
.data-table thead th{
  background:var(--navy);color:#fff;text-align:left;padding:16px 18px;font-size:14px;font-weight:700;
  font-family:'Manrope',sans-serif;white-space:nowrap;
}
.data-table tbody td{padding:14px 18px;border-bottom:1px solid var(--light-grey);font-size:14px;vertical-align:top;}
.data-table tbody tr:nth-child(even){background:var(--offwhite);}
.data-table tbody tr:hover{background:#eaf4fa;}
.table-cta{text-align:center;margin-top:36px;}
.table-cta p{color:var(--grey);margin-bottom:16px;font-size:16px;}

/* ---------- Back to top ---------- */
.back-to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:12px;
  background:var(--brand);color:#fff;border:none;cursor:pointer;z-index:900;
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;
  transform:translateY(12px);transition:var(--transition);box-shadow:var(--shadow);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:var(--teal-2);}
.back-to-top svg{width:24px;height:24px;fill:currentColor;}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .product-grid{grid-template-columns:repeat(3,1fr);}
  .testimonial-grid,.highlight-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .two-col{grid-template-columns:1fr;gap:40px;}
  .two-col-reverse .col:first-child{order:1;}
  .two-col-reverse .col:last-child{order:2;}
}
@media (max-width:768px){
  .topbar-fill{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:76px;right:-100%;width:min(320px,80vw);height:calc(100vh - 76px);
    background:#fff;flex-direction:column;align-items:flex-start;padding:32px 24px;
    box-shadow:-6px 0 30px rgba(13,27,42,.15);transition:right var(--transition);overflow-y:auto;
  }
  .main-nav.open{right:0;}
  .main-nav ul{flex-direction:column;width:100%;gap:6px;}
  .main-nav ul a{display:block;width:100%;}
  .nav-cta{margin:16px 0 0;width:100%;text-align:center;}
  .has-dropdown .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding-left:16px;display:none;}
  .has-dropdown:hover .dropdown{display:block;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .testimonial-grid,.highlight-grid{grid-template-columns:1fr;}
  .hero{padding:100px 0 80px;min-height:76vh;}
  .section{padding:72px 0;}
  .form-row{grid-template-columns:1fr;}
  .info-grid{grid-template-columns:1fr;}
  .check-list{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;text-align:center;}
  .stats-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:480px){
  .product-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .brand-text{font-size:20px;}
  .brand-logo{height:34px;}
}

/* ---------- Supplier form ---------- */
.product-select-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px 24px;}
.product-select-group h4{font-size:14px;font-weight:700;color:var(--navy);margin-bottom:10px;text-transform:uppercase;letter-spacing:.4px;}
.checkbox-label{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--dark-text);margin-bottom:8px;cursor:pointer;}
.checkbox-label input{width:auto;margin-top:2px;accent-color:var(--teal-2);}

/* ---------- Product detail page ---------- */
.specs-list{display:flex;flex-direction:column;gap:14px;max-width:720px;margin:0 auto;}
.spec-item{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--dark-text);}
.spec-item .icon{color:var(--teal-2);flex-shrink:0;width:20px;height:20px;margin-top:2px;}

@media (max-width:768px){
  .product-select-grid{grid-template-columns:1fr;}
}