/* Trutherm Labwerk — Industrial Theme v4.1.0 */
:root{
  --primary:#1c2b3a;--primary-light:#2e4a63;--primary-dark:#0f1c28;
  --accent:#e85d04;--accent-light:#f48c06;--steel:#4a6274;--steel-light:#7a96a8;
  --text:#1a2632;--text-muted:#5a6e7c;--bg:#edf0f2;--bg-card:#ffffff;
  --border:#cdd6de;--shadow:0 1px 8px rgba(0,0,0,.10);--shadow-lg:0 6px 28px rgba(0,0,0,.14);
  --radius:5px;--header-h:64px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:#edf0f2;color:#1a2632;font-size:15px;line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:52px 0}
.mt-3{margin-top:24px}

/* ═══ HEADER ═══ */
.site-header{
  background:#0f1c28;
  height:64px;position:sticky;top:0;z-index:1000;
  border-bottom:3px solid #e85d04;
  box-shadow:0 3px 20px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo a{display:flex;flex-direction:column;gap:1px;color:#fff;text-decoration:none}
.logo-text{font-size:1.15rem;font-weight:900;letter-spacing:.8px;text-transform:uppercase;color:#fff}
.logo small{font-size:.6rem;color:rgba(255,255,255,.45);font-weight:400;letter-spacing:.15em;text-transform:uppercase}
.logo img{max-height:42px}
.main-nav ul{display:flex;gap:0;list-style:none}
.main-nav a{color:rgba(255,255,255,.72);padding:8px 14px;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border-bottom:3px solid transparent;transition:all .15s;display:block}
.main-nav a:hover,.main-nav a.active{color:#fff;border-bottom-color:#e85d04}
.header-actions{display:flex;align-items:center;gap:8px}
.cart-btn{color:#fff;padding:7px 13px;border-radius:3px;background:rgba(255,255,255,.1);font-size:.8rem;font-weight:700;border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;gap:5px;transition:background .15s;cursor:pointer;text-decoration:none}
.cart-btn:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-sm{color:#fff!important;padding:7px 16px;border-radius:3px;background:#e85d04;font-size:.76rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;border:none;cursor:pointer;text-decoration:none;display:inline-block}
.btn-sm:hover{background:#c44d00}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:1.4rem;padding:4px 8px;cursor:pointer}
.mobile-nav{display:none;background:#0f1c28;position:fixed;top:64px;left:0;right:0;z-index:999;padding:10px 20px;border-bottom:3px solid #e85d04}
.mobile-nav.open{display:block}
.mobile-nav ul{list-style:none}
.mobile-nav a{display:block;padding:10px 0;color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.07);font-size:.84rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}

/* ═══ BUTTONS ═══ */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:3px;font-weight:800;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;border:2px solid transparent;transition:all .15s;cursor:pointer;font-family:inherit;text-decoration:none}
.btn-primary{background:#2e4a63;color:#fff;border-color:#2e4a63}
.btn-primary:hover{background:#0f1c28;border-color:#0f1c28;color:#fff}
.btn-accent{background:#e85d04;color:#fff;border-color:#e85d04}
.btn-accent:hover{background:#c44d00;border-color:#c44d00;color:#fff}
.btn-outline{background:transparent;color:#2e4a63;border-color:#2e4a63}
.btn-outline:hover{background:#2e4a63;color:#fff}
.btn-lg{padding:13px 28px;font-size:.88rem}
.btn-block{display:flex;width:100%;justify-content:center}

/* ═══ HERO ═══ */
.hero-section{
  background:#0f1c28;
  background-image:linear-gradient(135deg,#0f1c28 0%,#1c2b3a 55%,#1a3a5c 100%);
  padding:68px 0 56px;color:#fff;position:relative;overflow:hidden;
}
.hero-section::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.025) 1px,transparent 0);
  background-size:28px 28px;pointer-events:none;
}
.hero-section .container{position:relative;z-index:1}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(232,93,4,.18);border:1px solid rgba(232,93,4,.5);
  padding:5px 14px;border-radius:2px;
  font-size:.7rem;color:rgba(255,255,255,.88);letter-spacing:.14em;text-transform:uppercase;
  margin-bottom:18px;
}
.hero-badge-dot{width:7px;height:7px;background:#e85d04;border-radius:50%;flex-shrink:0;display:inline-block}
.hero-section h1{font-size:clamp(1.8rem,4vw,3rem);font-weight:900;line-height:1.1;margin-bottom:14px;letter-spacing:-.5px;color:#fff}
.hero-section h1 span{color:#f48c06}
.hero-section p{font-size:1rem;color:rgba(255,255,255,.78);max-width:520px;line-height:1.75;margin-bottom:26px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.hero-specs{display:flex;gap:8px;margin-top:26px;flex-wrap:wrap}
.spec-pill{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  padding:5px 13px;border-radius:2px;
  font-size:.7rem;color:rgba(255,255,255,.7);text-transform:uppercase;letter-spacing:.1em;
}

/* ═══ PAGE HERO ═══ */
.page-hero{background:linear-gradient(135deg,#0f1c28,#1c2b3a);padding:34px 0 28px;color:#fff;border-bottom:3px solid #e85d04}
.page-hero h1{font-size:clamp(1.2rem,2.8vw,1.9rem);font-weight:900;margin-bottom:6px;text-transform:uppercase;letter-spacing:.03em;color:#fff}
.page-hero p{color:rgba(255,255,255,.72);font-size:.88rem}
.breadcrumb{display:flex;gap:6px;align-items:center;font-size:.75rem;opacity:.68;margin-bottom:8px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.62)}
.breadcrumb a:hover{color:#fff}
.breadcrumb-sep{opacity:.4;font-size:.7rem}

/* ═══ STATS BAR ═══ */
.stats-bar{background:#1c2b3a;border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.stats-bar-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-bar-item{padding:20px;text-align:center}
.stats-bar-item+.stats-bar-item{border-left:1px solid rgba(255,255,255,.07)}
.stat-num{font-size:2rem;font-weight:900;color:#f48c06;line-height:1}
.stat-lbl{font-size:.66rem;color:rgba(255,255,255,.45);text-transform:uppercase;letter-spacing:.14em;margin-top:5px}

/* ═══ SECTION TITLES ═══ */
.section-title{font-size:clamp(1.2rem,2.5vw,1.75rem);font-weight:900;text-align:center;color:#1c2b3a;text-transform:uppercase;letter-spacing:.05em}
.section-title::after{content:'';display:block;width:44px;height:3px;background:#e85d04;margin:10px auto 0}
.section-subtitle{text-align:center;color:#5a6e7c;margin-top:12px;margin-bottom:30px;max-width:560px;margin-left:auto;margin-right:auto;font-size:.9rem}

/* ═══ CARDS ═══ */
.cards-grid{display:grid;gap:16px}
.cards-grid-2{grid-template-columns:repeat(2,1fr)}
.cards-grid-3{grid-template-columns:repeat(3,1fr)}
.cards-grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border-radius:5px;box-shadow:0 1px 8px rgba(0,0,0,.09);overflow:hidden;transition:transform .18s,box-shadow .18s,border-top-color .18s;border:1px solid #cdd6de;border-top:3px solid transparent}
.card:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(0,0,0,.13);border-top-color:#e85d04}
.card-body{padding:18px}
.card-body h3{font-size:.86rem;font-weight:800;color:#1c2b3a;margin-bottom:5px;text-transform:uppercase;letter-spacing:.04em}
.card-body p{font-size:.82rem;color:#5a6e7c;line-height:1.6}
.card-img{width:100%;height:150px;object-fit:cover}
.card-img-placeholder{width:100%;height:150px;background:linear-gradient(135deg,#1c2b3a,#2e4a63);display:flex;align-items:center;justify-content:center;font-size:2.5rem}
.group-card{cursor:pointer}
.group-card:hover .card-body h3{color:#e85d04}

/* ═══ TEMPERATURE CARDS ═══ */
.temp-card{background:#fff;border-radius:5px;padding:18px;box-shadow:0 1px 8px rgba(0,0,0,.09);border:2px solid #cdd6de;border-top:3px solid #7a96a8;cursor:pointer;transition:all .18s;text-align:center}
.temp-card:hover,.temp-card.active{border-color:#e85d04;border-top-color:#e85d04;background:#fff8f3}
.temp-val{font-size:1.9rem;font-weight:900;color:#1c2b3a;letter-spacing:-1px}
.temp-unit{font-size:.68rem;font-weight:800;color:#e85d04;text-transform:uppercase;letter-spacing:.1em;margin-top:1px}
.temp-fahr{font-size:.74rem;color:#5a6e7c;margin-top:3px}
.temp-label{font-size:.68rem;color:#4a6274;margin-top:5px;text-transform:uppercase;letter-spacing:.07em}

/* ═══ DIMENSION CARDS ═══ */
.dim-card{background:#fff;border-radius:5px;padding:14px;box-shadow:0 1px 8px rgba(0,0,0,.09);border:2px solid #cdd6de;cursor:pointer;transition:all .18s;text-align:center}
.dim-card:hover,.dim-card.active{border-color:#e85d04;background:#fff8f3}
.dim-value{font-size:.88rem;font-weight:800;color:#1c2b3a;font-family:monospace}
.volume-tag{font-size:.74rem;color:#5a6e7c;margin-top:3px}
.price-tag{font-size:.86rem;color:#e85d04;font-weight:800;margin-top:7px}
.list-price{font-size:.75rem;color:#5a6e7c;text-decoration:line-through}

/* ═══ UNIT SWITCHER ═══ */
.unit-switcher{display:flex;align-items:center;gap:8px;margin-bottom:20px;flex-wrap:wrap}
.unit-switcher label{font-size:.72rem;font-weight:800;color:#5a6e7c;text-transform:uppercase;letter-spacing:.08em}
.unit-btn{padding:5px 14px;border-radius:2px;border:2px solid #cdd6de;background:#fff;font-size:.74rem;font-weight:800;color:#5a6e7c;cursor:pointer;transition:all .15s;text-transform:uppercase;letter-spacing:.05em}
.unit-btn.active{background:#1c2b3a;color:#fff;border-color:#1c2b3a}

/* ═══ SEARCH ═══ */
.search-box-wrap{position:relative;max-width:460px;margin:0 auto 22px}
.search-box{width:100%;padding:9px 14px 9px 38px;border-radius:3px;border:2px solid #cdd6de;font-size:.88rem;outline:none;transition:border-color .15s;background:#fff;color:#1a2632}
.search-box:focus{border-color:#e85d04}
.search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:#5a6e7c;font-size:.85rem}
.autocomplete-list{position:absolute;top:calc(100% + 3px);left:0;right:0;background:#fff;border-radius:3px;box-shadow:0 6px 28px rgba(0,0,0,.14);border:1px solid #cdd6de;z-index:100;max-height:260px;overflow-y:auto;display:none}
.autocomplete-item{padding:8px 14px;cursor:pointer;font-size:.86rem;border-bottom:1px solid #f0f3f5}
.autocomplete-item:hover{background:#fff8f3;color:#e85d04}

/* ═══ PRODUCT PAGE ═══ */
.product-layout{display:grid;grid-template-columns:380px 1fr;gap:30px}
.product-image-wrap{position:sticky;top:76px}
.product-image-wrap img{border-radius:5px;border:1px solid #cdd6de}
.product-details h1{font-size:clamp(1rem,2.2vw,1.45rem);font-weight:900;color:#1c2b3a;margin-bottom:12px;text-transform:uppercase;letter-spacing:.03em}
.product-price-block{background:#fffaf5;border:1px solid #f0c878;border-left:4px solid #e85d04;border-radius:5px;padding:16px;margin-bottom:16px}
.sell-price{font-size:1.85rem;font-weight:900;color:#e85d04}
.list-price-wrap{display:flex;align-items:center;gap:8px;margin-top:3px}
.list-price{text-decoration:line-through;color:#5a6e7c;font-size:1rem}
.discount-badge{background:#dcfce7;color:#166534;padding:2px 8px;border-radius:2px;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
.add-to-cart-block{margin-bottom:16px;display:flex;flex-direction:column;gap:8px}
.qty-input{display:flex;align-items:center;gap:8px}
.qty-input input{width:58px;text-align:center;padding:7px;border:2px solid #cdd6de;border-radius:3px;font-size:.95rem}
.spec-table{width:100%;border-collapse:collapse;font-size:.82rem;margin-top:12px}
.spec-table td{padding:7px 10px;border-bottom:1px solid #cdd6de}
.spec-table td:first-child{color:#5a6e7c;width:42%;font-weight:700;background:#f6f8fa;text-transform:uppercase;font-size:.7rem;letter-spacing:.05em}

/* ═══ CART ═══ */
.cart-table{width:100%;border-collapse:collapse}
.cart-table th{padding:9px 12px;text-align:left;border-bottom:2px solid #cdd6de;font-weight:800;font-size:.72rem;color:#5a6e7c;text-transform:uppercase;letter-spacing:.07em;background:#f6f8fa}
.cart-table td{padding:12px;border-bottom:1px solid #cdd6de;vertical-align:middle}
.cart-summary{background:#fff;border-radius:5px;padding:20px;box-shadow:0 1px 8px rgba(0,0,0,.09);border:1px solid #cdd6de;border-top:3px solid #e85d04}
.cart-summary-row{display:flex;justify-content:space-between;padding:7px 0;font-size:.86rem;border-bottom:1px solid #cdd6de}
.cart-summary-total{font-weight:900;font-size:1.05rem;border-bottom:none;padding-top:10px}

/* ═══ FORMS ═══ */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.74rem;font-weight:800;margin-bottom:4px;color:#5a6e7c;text-transform:uppercase;letter-spacing:.08em}
.form-control{width:100%;padding:9px 12px;border:2px solid #cdd6de;border-radius:3px;font-size:.88rem;font-family:inherit;outline:none;transition:border-color .15s;background:#fff;color:#1a2632}
.form-control:focus{border-color:#e85d04}
textarea.form-control{resize:vertical;min-height:88px}
.form-note{font-size:.74rem;color:#5a6e7c;margin-top:3px}
.captcha-block{display:flex;align-items:center;gap:12px;margin-bottom:14px;padding:9px 12px;background:#f6f8fa;border-radius:3px;font-size:.84rem;border:1px solid #cdd6de}

/* ═══ ALERTS ═══ */
.alert{padding:10px 14px;border-radius:3px;font-size:.84rem;margin-bottom:12px;border-left:3px solid}
.alert-success{background:#f0fdf4;color:#166534;border-color:#22c55e}
.alert-error{background:#fef2f2;color:#991b1b;border-color:#ef4444}
.alert-warning{background:#fffbeb;color:#92400e;border-color:#f59e0b}
.alert-info{background:#eff6ff;color:#1e40af;border-color:#3b82f6}

/* ═══ ACCOUNT ═══ */
.account-grid{display:grid;grid-template-columns:210px 1fr;gap:22px}
.account-sidebar{background:#fff;border-radius:5px;padding:16px;box-shadow:0 1px 8px rgba(0,0,0,.09);height:fit-content;border-top:3px solid #e85d04}
.account-sidebar a{display:block;padding:8px 12px;border-radius:2px;font-size:.74rem;color:#1a2632;margin-bottom:2px;font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.account-sidebar a:hover,.account-sidebar a.active{background:#fff8f3;color:#e85d04}

/* ═══ CHATBOT ═══ */
#chatbot-widget{position:fixed;bottom:22px;right:22px;z-index:9999}
#chatbot-toggle{width:52px;height:52px;border-radius:3px;background:#1c2b3a;border:2px solid #e85d04;color:#fff;font-size:1.3rem;box-shadow:0 6px 28px rgba(0,0,0,.22);transition:all .2s;cursor:pointer}
#chatbot-toggle:hover{background:#e85d04;transform:scale(1.06)}
#chatbot-box{position:absolute;bottom:62px;right:0;width:295px;background:#fff;border-radius:5px;box-shadow:0 6px 28px rgba(0,0,0,.18);border:1px solid #cdd6de;border-top:3px solid #e85d04;overflow:hidden}
.chatbot-header{background:#1c2b3a;color:#fff;padding:10px 14px;display:flex;justify-content:space-between;align-items:center;font-weight:800;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em}
.chatbot-header button{background:none;border:none;color:#fff;font-size:.95rem;cursor:pointer}
#chatbot-messages{max-height:230px;overflow-y:auto;padding:10px;display:flex;flex-direction:column;gap:7px}
.bot-msg,.user-msg{padding:7px 10px;border-radius:3px;font-size:.82rem;max-width:85%;line-height:1.5}
.bot-msg{background:#f0f3f5;color:#1a2632}
.user-msg{background:#1c2b3a;color:#fff;align-self:flex-end}
.chatbot-input{display:flex;padding:8px;gap:5px;border-top:1px solid #cdd6de}
.chatbot-input input{flex:1;padding:6px 10px;border:2px solid #cdd6de;border-radius:2px;font-size:.8rem;outline:none}
.chatbot-input button{background:#e85d04;color:#fff;border:none;border-radius:2px;padding:6px 11px;font-size:.74rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;cursor:pointer}

/* ═══ NOTIFICATIONS ═══ */
.notification{position:fixed;top:14px;right:14px;z-index:10000;padding:10px 16px;border-radius:3px;font-size:.86rem;font-weight:700;animation:slideIn .3s ease;box-shadow:0 6px 28px rgba(0,0,0,.18);border-left:4px solid}
.notification.success{background:#f0fdf4;color:#166534;border-color:#22c55e}
.notification.error{background:#fef2f2;color:#991b1b;border-color:#ef4444}
@keyframes slideIn{from{transform:translateX(110px);opacity:0}to{transform:none;opacity:1}}

/* ═══ FOOTER ═══ */
.site-footer{background:#0f1c28;color:rgba(255,255,255,.70);padding:46px 0 0;margin-top:52px;border-top:3px solid #e85d04}
.footer-brand{font-size:.88rem;font-weight:900;color:#fff;text-transform:uppercase;letter-spacing:.8px;margin-bottom:8px}
.footer-about{font-size:.8rem;color:rgba(255,255,255,.50);line-height:1.65;margin-bottom:10px}
.footer-contact{font-size:.8rem;color:rgba(255,255,255,.50);margin-bottom:4px}
.footer-contact a{color:rgba(255,255,255,.50)}
.footer-contact a:hover{color:#f48c06}
.fc-icon{color:#e85d04;margin-right:5px;font-size:.55rem}
.cert-badges{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}
.cert-badge{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);padding:3px 9px;border-radius:2px;font-size:.64rem;color:rgba(255,255,255,.42);text-transform:uppercase;letter-spacing:.1em}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.6fr;gap:32px;margin-bottom:30px}
.footer-heading{color:#fff;font-size:.7rem;font-weight:800;margin-bottom:12px;padding-bottom:7px;border-bottom:1px solid rgba(255,255,255,.08);text-transform:uppercase;letter-spacing:.14em}
.footer-links{list-style:none}
.footer-links li{margin-bottom:5px}
.footer-links a{font-size:.8rem;color:rgba(255,255,255,.48);transition:color .15s}
.footer-links a:hover{color:#f48c06}
.location-links{display:flex;flex-wrap:wrap;gap:5px;max-height:148px;overflow:hidden}
.loc-link{font-size:.68rem;color:rgba(255,255,255,.38);border:1px solid rgba(255,255,255,.09);padding:2px 7px;border-radius:2px;transition:all .15s}
.loc-link:hover{color:#fff;border-color:#e85d04}
.view-all-loc{display:block;margin-top:8px;font-size:.76rem;color:#f48c06}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding:14px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:.72rem;color:rgba(255,255,255,.28)}
.footer-bottom a{color:rgba(255,255,255,.32)}
.footer-bottom a:hover{color:#f48c06}

/* ═══ MISC ═══ */
.badge{display:inline-block;padding:2px 8px;border-radius:2px;font-size:.68rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase}
.badge-primary{background:#dbeafe;color:#1e3a8a}
.badge-success{background:#dcfce7;color:#14532d}
.badge-warning{background:#fef9c3;color:#713f12}
.badge-danger{background:#fee2e2;color:#7f1d1d}
.tag{background:#dce5ec;color:#2e4a63;padding:2px 8px;border-radius:2px;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}

/* ═══ RESPONSIVE ═══ */
@media(max-width:1100px){.cards-grid-4{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.product-layout{grid-template-columns:300px 1fr}}
@media(max-width:900px){.main-nav{display:none}.menu-toggle{display:block}.cards-grid-3,.cards-grid-4{grid-template-columns:repeat(2,1fr)}.product-layout{grid-template-columns:1fr}.product-image-wrap{position:static}.account-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{padding:0 14px}.section{padding:32px 0}.cards-grid-2,.cards-grid-3,.cards-grid-4{grid-template-columns:1fr}.hero-section{padding:48px 0 38px}.footer-grid{grid-template-columns:1fr;gap:20px}.footer-bottom{flex-direction:column;text-align:center}.stats-bar-inner{grid-template-columns:repeat(2,1fr)}}