/* ===================================================================
   3DLab MK — global stylesheet  ·  DARK "Lab Violet" 3D-printing theme
   Palette pulled from the 3DLAB logo: violet potion, navy lab, lavender
   letters, with yellow/pink character accents. Build-plate grid + 3D shapes.
   =================================================================== */
:root{
    --cyan:#9b6be0;   /* primary violet (flask potion)  */
    --teal:#7c5ce0;   /* deep violet                    */
    --blue:#b39ddb;   /* lavender (logo letters)        */
    --blue2:#6d4cc9;  /* royal violet                   */
    --accent:#f5b945; /* warm yellow (the flask's shoes)*/
    --pink:#ec6a9c;   /* pink accent (socks/tongue)     */
    --white:#ffffff;  /* crisp white (logo letters)     */
    --hl:rgba(255,255,255,.09);  /* glassy top highlight */
    --bg:#13152b;
    --bg2:#1b1e3d;
    --surface:rgba(27,30,61,.82);
    --surface-solid:#1b1e3d;
    --surface2:#242748;
    --border:#2e2f5c;
    --border2:#46407a;
    --ink:#ece9fb;
    --ink-soft:#a39bc4;
    --glow:rgba(155,107,224,.45);
    --radius:16px;
    --shadow:0 14px 40px rgba(0,0,0,.45);
    --max:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.6;position:relative;overflow-x:hidden;
}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 20px;position:relative;z-index:1}
.narrow{max-width:680px}
.muted{color:var(--ink-soft)}
.text-right{text-align:right}
main{position:relative;z-index:1}

/* =================================================================
   GLOBAL 3D BACKGROUND — fixed build-plate grid + floating shapes
   ================================================================= */
.site-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.site-bg::before{ /* ambient glows */
    content:"";position:absolute;inset:0;
    background:
        radial-gradient(900px 500px at 80% -100px, rgba(155,107,224,.16), transparent 60%),
        radial-gradient(800px 520px at 10% 8%, rgba(124,77,201,.13), transparent 60%),
        radial-gradient(700px 600px at 50% 110%, rgba(124,92,224,.12), transparent 60%);
}
.site-bg::after{ /* perspective build-plate grid at the bottom */
    content:"";position:absolute;left:-20%;right:-20%;bottom:-10%;height:60vh;
    background-image:linear-gradient(rgba(155,107,224,.16) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(155,107,224,.16) 1px,transparent 1px);
    background-size:54px 54px;
    transform:perspective(420px) rotateX(60deg);
    transform-origin:bottom center;
    mask-image:linear-gradient(to top,#000,transparent 85%);
    -webkit-mask-image:linear-gradient(to top,#000,transparent 85%);
    opacity:.6;
}
@media (prefers-reduced-motion: reduce){ .site-bg .s3d{display:none} }

.s3d{position:absolute;left:var(--x);top:var(--y);opacity:.28;
    animation:s3dFloat var(--dur,17s) ease-in-out var(--d,0s) infinite;
    filter:drop-shadow(0 0 12px var(--glow));will-change:transform}
@keyframes s3dFloat{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(var(--mx,16px),var(--my,-24px),0)}}
.s3d-cube{position:relative;width:var(--s,56px);height:var(--s,56px);transform-style:preserve-3d;animation:s3dSpin var(--spin,30s) linear infinite}
@keyframes s3dSpin{0%{transform:rotateX(-22deg) rotateY(0)}100%{transform:rotateX(-22deg) rotateY(360deg)}}
.s3d-cube i{position:absolute;inset:0;border:1.5px solid rgba(190,170,255,.7);
    background:linear-gradient(135deg,rgba(155,107,224,.12),rgba(124,77,201,.04));box-shadow:inset 0 0 16px rgba(124,92,224,.2)}
.s3d-cube i:nth-child(1){transform:rotateY(0deg)   translateZ(calc(var(--s)/2))}
.s3d-cube i:nth-child(2){transform:rotateY(90deg)  translateZ(calc(var(--s)/2))}
.s3d-cube i:nth-child(3){transform:rotateY(180deg) translateZ(calc(var(--s)/2))}
.s3d-cube i:nth-child(4){transform:rotateY(270deg) translateZ(calc(var(--s)/2))}
.s3d-cube i:nth-child(5){transform:rotateX(90deg)  translateZ(calc(var(--s)/2))}
.s3d-cube i:nth-child(6){transform:rotateX(-90deg) translateZ(calc(var(--s)/2))}
.s3d-spool{width:var(--s,64px);height:var(--s,64px);border-radius:50%;border:calc(var(--s,64px)/4.5) solid;
    border-color:var(--cyan) var(--teal) var(--teal) var(--cyan);position:relative;animation:s3dSpin var(--spin,34s) linear infinite;
    box-shadow:0 0 16px rgba(155,107,224,.35),inset 0 0 10px rgba(0,0,0,.4)}
.s3d-spool::after{content:"";position:absolute;inset:34%;border-radius:50%;background:var(--bg);box-shadow:0 0 0 2px rgba(190,170,255,.5)}

/* =================================================================
   Buttons
   ================================================================= */
.btn{display:inline-block;padding:11px 22px;border-radius:999px;font-weight:700;border:1px solid transparent;cursor:pointer;font-size:15px;transition:.16s;text-align:center}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--cyan),var(--blue2));color:#1a1038;box-shadow:inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 10px 26px rgba(155,107,224,.4);color:#1a1038}
.btn-outline{background:transparent;border-color:var(--border2);color:var(--ink)}
.btn-outline:hover{background:rgba(255,255,255,.06);border-color:var(--white)}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-danger{background:#ef4444;color:#fff;border-radius:8px}
.btn-link{color:var(--ink-soft);font-weight:600;padding:6px 8px}
.btn-link:hover{color:var(--cyan);text-decoration:none}

/* =================================================================
   Header
   ================================================================= */
.site-header{position:sticky;top:0;z-index:50;background:rgba(19,21,43,.78);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand-logo{height:46px;width:auto;filter:drop-shadow(0 2px 12px rgba(155,107,224,.4))}
.main-nav{display:flex;gap:26px;margin-left:14px}
.main-nav a{color:var(--ink);font-weight:600;position:relative;padding-bottom:3px}
.main-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--white);border-radius:999px;transition:right .2s ease}
.main-nav a:hover{color:var(--white);text-decoration:none}
.main-nav a:hover::after{right:0}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang-switch{display:flex;gap:4px;font-weight:600;color:var(--ink-soft)}
.lang-switch a{color:var(--ink-soft)}
.lang-switch a.active{color:var(--cyan);text-decoration:underline}
.cart-link{position:relative;font-size:20px}
.cart-badge{position:absolute;top:-8px;right:-12px;background:linear-gradient(135deg,var(--cyan),var(--blue2));color:#1a1038;border-radius:999px;font-size:11px;font-weight:800;min-width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;padding:0 5px}
.nav-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;color:var(--ink)}

/* =================================================================
   Hero (dark, two-column with 3D object)
   ================================================================= */
.hero{position:relative;padding:64px 0 72px;overflow:hidden}
.hero-content{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-text{text-align:left}
.hero-logo{height:64px;margin-bottom:18px;filter:drop-shadow(0 4px 18px rgba(155,107,224,.45))}
.hero h1{font-size:2.7rem;margin:0 0 12px;line-height:1.1;color:#fff;text-shadow:0 0 30px rgba(155,107,224,.35)}
.hero h1 .accent{background:none;-webkit-background-clip:border-box;background-clip:border-box;color:#fff}
.hero-sub{font-size:1.12rem;color:#fff;max-width:560px;margin:0 0 26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-3d{position:relative;height:380px;border-radius:var(--radius);border:1px solid var(--border);
    background:radial-gradient(circle at 50% 60%,rgba(155,107,224,.12),transparent 70%);overflow:hidden}
.hero-3d canvas{display:block;width:100%;height:100%;cursor:grab}
.hero-3d canvas:active{cursor:grabbing}
.hero-3d-hint{position:absolute;bottom:10px;left:0;right:0;text-align:center;font-size:.78rem;color:var(--ink-soft);pointer-events:none}

/* =================================================================
   Sections / cards
   ================================================================= */
section{padding:56px 0;position:relative}
.section-title{text-align:center;font-size:1.9rem;margin:0 0 18px;color:#fff;position:relative}
.section-title::after{content:"";display:block;width:56px;height:3px;margin:12px auto 0;border-radius:999px;
    background:linear-gradient(90deg,transparent,var(--white),transparent)}
.section-intro{text-align:center;color:var(--ink-soft);margin:0 auto 30px;max-width:620px}
.page-section{padding:48px 0;min-height:60vh}

/* a reusable "glassy 3D card" look */
.card3d{background:var(--surface);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:var(--radius);
    box-shadow:inset 0 1px 0 var(--hl);
    transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;transform-style:preserve-3d}
.card3d:hover{border-color:var(--border2);box-shadow:inset 0 1px 0 var(--hl),var(--shadow)}

/* Info cards */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{background:var(--surface);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:var(--radius);padding:26px;text-align:center;transition:.18s;transform-style:preserve-3d;box-shadow:inset 0 1px 0 var(--hl)}
.info-card:hover{border-color:var(--cyan);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 14px 36px rgba(155,107,224,.18);transform:translateY(-4px)}
.info-icon{font-size:2rem;margin-bottom:8px}
.info-card h3{margin:0 0 6px;color:var(--cyan)}
.info-card p{margin:0;color:#fff}
.info-card a{color:var(--ink)}

/* Carousel */
.carousel{position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow);background:#000;border:1px solid var(--border)}
.carousel-track{display:flex;transition:transform .5s ease}
.carousel-slide{min-width:100%;position:relative}
.carousel-slide img{width:100%;height:440px;object-fit:cover}
.carousel-caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.8));color:#fff;padding:30px 24px 18px;font-size:1.1rem}
.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(27,30,61,.85);border:1px solid var(--border);width:44px;height:44px;border-radius:50%;font-size:26px;cursor:pointer;color:var(--cyan);display:flex;align-items:center;justify-content:center}
.carousel-btn.prev{left:14px}
.carousel-btn.next{right:14px}

/* Steps — "layer line" cards */
.steps-table{width:100%;max-width:760px;margin:0 auto;border-collapse:separate;border-spacing:0 12px}
.steps-table td{background:var(--surface);border:1px solid var(--border);padding:18px 22px;font-size:1.05rem;color:var(--ink)}
.steps-table tr{transition:.15s}
.steps-table td:first-child{border-radius:var(--radius) 0 0 var(--radius);border-right:none}
.steps-table td:last-child{border-radius:0 var(--radius) var(--radius) 0;border-left:none}
.step-num{width:54px;text-align:center;font-weight:800;font-size:1.4rem;color:#1a1038 !important;background:linear-gradient(135deg,var(--cyan),var(--blue2)) !important}

/* Account CTA */
.account-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;flex-wrap:wrap}
.account-cta-inner h2{margin:0 0 6px;color:#fff}
.account-cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Contact form */
.contact-form{max-width:760px;margin:0 auto;background:var(--surface);border:1px solid var(--border);padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
.contact-form .form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:14px}
.contact-form label,.stacked-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;margin-bottom:14px;color:var(--ink)}
.contact-form input,.contact-form textarea,.stacked-form input,.stacked-form textarea,.stacked-form select{
    padding:11px 12px;border:1px solid var(--border);border-radius:10px;font-size:15px;font-family:inherit;background:var(--bg2);color:var(--ink)}
.contact-form input:focus,.contact-form textarea:focus,.stacked-form input:focus,.stacked-form textarea:focus{outline:none;border-color:var(--cyan)}

/* =================================================================
   Products
   ================================================================= */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:24px}
.product-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.18s;display:flex;flex-direction:column;transform-style:preserve-3d;box-shadow:inset 0 1px 0 var(--hl)}
.product-card:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 18px 40px rgba(155,107,224,.16);transform:translateY(-4px);border-color:var(--border2)}
.product-thumb{position:relative;display:block;width:100%;overflow:hidden;background:#14162b;border-radius:var(--radius) var(--radius) 0 0}
.product-thumb img{display:block;width:100%;height:auto}
.product-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.product-body h3{margin:0;font-size:1.05rem}
.product-body h3 a{color:var(--ink)}
.product-price{font-weight:800;color:var(--accent);font-size:1.15rem;white-space:nowrap}
.add-cart-form{margin-top:auto;display:flex;flex-direction:column;gap:8px}
/* Sale */
.price-old{text-decoration:line-through;text-decoration-color:#ec6a9c;text-decoration-thickness:2px;color:#9a96ab;font-weight:600;font-size:.85em;margin-right:8px;white-space:nowrap}
.price-sale{color:var(--accent);font-weight:800;font-size:1.12em;white-space:nowrap}
.price-line{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.price-line .product-price,.price-line .product-price-lg{margin-bottom:0}
.price-pill{margin-left:auto;background:#ec6a9c;color:#fff;font-size:.82rem;font-weight:800;padding:4px 12px;border-radius:999px;white-space:nowrap;line-height:1}

/* Product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.gallery-main img{width:100%;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface2)}
.gallery-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.gallery-thumb{width:74px;height:74px;object-fit:cover;border-radius:8px;border:2px solid var(--border);cursor:pointer}
.gallery-thumb:hover{border-color:var(--cyan)}
.product-info h1{margin:0 0 10px;color:#fff}
.product-price-lg{font-size:1.8rem;font-weight:800;color:var(--accent);margin-bottom:16px}
.product-desc{margin-bottom:20px;color:var(--ink-soft)}
.cod-note{background:rgba(155,107,224,.08);border:1px dashed var(--border2);border-radius:10px;padding:12px 16px;color:var(--cyan);font-weight:600;display:inline-block}
.add-cart-detail{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-top:18px}
.qty-label{display:flex;flex-direction:column;gap:6px;font-weight:600}
.qty-input{width:84px;padding:9px;border:1px solid var(--border);border-radius:8px;background:var(--bg2);color:var(--ink)}

/* =================================================================
   Cart / tables
   ================================================================= */
.cart-table,.data-table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.cart-table th,.cart-table td,.data-table th,.data-table td{padding:14px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
.cart-table thead th,.data-table thead th{background:var(--surface2);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft)}
.cart-table td a,.data-table td a{color:var(--ink)}
.cart-thumb{width:56px;height:56px;object-fit:cover;border-radius:8px}
.btn-remove{background:none;border:none;color:#f87171;font-size:18px;cursor:pointer}
.cart-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:20px}
.order-items-row td{padding-top:0;border-bottom:2px solid var(--border)}
.order-item-chip{display:inline-block;background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:3px 12px;margin:2px;font-size:.85rem}

/* Checkout */
.checkout-grid{display:grid;grid-template-columns:1fr 360px;gap:34px;align-items:start}
.checkout-summary{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:sticky;top:90px}
.checkout-summary h2{color:#fff}
.summary-list{list-style:none;padding:0;margin:0 0 14px}
.summary-list li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);gap:10px}
.summary-total{display:flex;justify-content:space-between;font-size:1.2rem;padding-top:12px}

/* Status pills */
.status-pill{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.8rem;font-weight:700}
.status-pending{background:rgba(250,204,21,.16);color:#fde047}
.status-ready{background:rgba(56,189,248,.18);color:#7dd3fc}
.status-shipped{background:rgba(34,197,94,.18);color:#86efac}

/* Alerts */
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;border:1px solid transparent}
.alert-success{background:rgba(34,197,94,.14);color:#86efac;border-color:rgba(34,197,94,.35)}
.alert-error{background:rgba(239,68,68,.14);color:#fca5a5;border-color:rgba(239,68,68,.35)}
.alert-info{background:rgba(56,189,248,.14);color:#7dd3fc;border-color:rgba(56,189,248,.35)}
.big-success{font-size:1.2rem;text-align:center}
.order-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;margin-bottom:20px}
.order-box h2{color:#fff}
.auth-form{background:var(--surface);border:1px solid var(--border);padding:28px;border-radius:var(--radius);box-shadow:var(--shadow)}
.auth-alt{text-align:center;margin-top:16px}

/* =================================================================
   Footer
   ================================================================= */
.site-footer{background:#0d0f20;border-top:1px solid var(--border);color:var(--ink-soft);padding:34px 0;position:relative;z-index:1}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-logo{height:50px;margin-bottom:8px;filter:drop-shadow(0 2px 12px rgba(155,107,224,.5))}
.footer-brand p{margin:0;font-size:.95rem}
.footer-socials{display:flex;gap:16px}
.footer-socials a{color:var(--ink-soft);transition:.15s}
.footer-socials a:hover{color:var(--cyan);transform:translateY(-2px)}

/* Back to top */
.back-to-top{position:fixed;bottom:24px;right:24px;width:48px;height:48px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--cyan),var(--blue2));color:#1a1038;font-size:22px;cursor:pointer;box-shadow:0 6px 20px rgba(155,107,224,.5);opacity:0;visibility:hidden;transition:.25s;z-index:60}
.back-to-top.show{opacity:1;visibility:visible}

/* =================================================================
   Responsive
   ================================================================= */
@media(max-width:880px){
    .main-nav{position:absolute;top:72px;left:0;right:0;background:rgba(19,21,43,.97);flex-direction:column;padding:14px 20px;gap:14px;border-bottom:1px solid var(--border);display:none}
    .main-nav.open{display:flex}
    .nav-toggle{display:block}
    .hero-content{grid-template-columns:1fr}
    .hero-text{text-align:center}
    .hero-sub{margin-left:auto;margin-right:auto}
    .hero-cta{justify-content:center}
    .hero-3d{height:300px;order:-1}
    .info-grid{grid-template-columns:1fr}
    .product-detail{grid-template-columns:1fr}
    .checkout-grid{grid-template-columns:1fr}
    .contact-form .form-row{grid-template-columns:1fr}
    .hero h1{font-size:2rem}
}