:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--brand-primary:#0ea5e9;--brand-secondary:#0284c7;--brand-dark:#0369a1;--brand-glow:#0ea5e933;--border-color:#e2e8f0;--danger:#ef4444;--success:#10b981;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-heading:"Inter", system-ui, sans-serif;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--container-width:1280px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-primary);max-width:100vw;color:var(--text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-primary);letter-spacing:-.02em;font-weight:700;line-height:1.2}a{color:inherit;transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--brand-primary)}button{cursor:pointer;background:0 0;border:none;min-height:44px;font-family:inherit}img,video{max-width:100%;height:auto;display:block}.container{width:100%;max-width:var(--container-width);margin:0 auto;padding:0 1rem}@media (min-width:640px){.container{padding:0 1.5rem}}@media (min-width:1024px){.container{padding:0 2rem}}.text-brand{color:var(--brand-primary)}.text-muted{color:var(--text-secondary)}.text-center{text-align:center}h1.hero-title{letter-spacing:-.03em;background:linear-gradient(135deg, var(--text-primary) 0%, var(--brand-dark) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1.5rem;font-size:clamp(2rem,6vw,5rem);font-weight:800}.btn{border-radius:var(--radius-md);transition:all var(--transition-normal);white-space:nowrap;justify-content:center;align-items:center;gap:.6rem;min-height:44px;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;display:inline-flex}@media (min-width:640px){.btn{padding:.875rem 1.75rem;font-size:1rem}}.btn-primary{background-color:var(--brand-primary);color:#fff;box-shadow:0 4px 14px var(--brand-glow)}.btn-primary:hover{background-color:var(--brand-secondary);transform:translateY(-2px);box-shadow:0 6px 20px #0ea5e966}.btn-outline{color:var(--brand-primary);border:1.5px solid var(--border-color);background-color:#0000}.btn-outline:hover{border-color:var(--brand-primary);background-color:#0ea5e90d}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);transition:transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);padding:1.25rem;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008}@media (min-width:640px){.card{padding:2rem}}.card:hover{border-color:var(--brand-glow);transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.input-base{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);min-height:44px;padding:.75rem 1rem;font-family:inherit;font-size:1rem}.input-base:focus{border-color:var(--brand-primary);box-shadow:0 0 0 3px var(--brand-glow);outline:none}.label-base{color:var(--text-secondary);margin-bottom:.5rem;font-size:.875rem;font-weight:600;display:block}.navbar{z-index:100;-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-color);background:#fffffff2;align-items:center;height:4rem;display:flex;position:sticky;top:0}@media (min-width:640px){.navbar{height:5rem}}.navbar .container{justify-content:space-between;align-items:center;display:flex}.nav-links{align-items:center;gap:2rem;display:flex}.nav-link{color:var(--text-secondary);transition:color var(--transition-fast);align-items:center;gap:.4rem;min-height:44px;font-size:.95rem;font-weight:600;display:flex}.nav-link:hover{color:var(--brand-primary)}.session-container{align-items:center;gap:.75rem;display:flex}.grid-cols-2{grid-template-columns:repeat(2,1fr);gap:1.5rem;display:grid}.grid-cols-3{grid-template-columns:repeat(3,1fr);gap:1.5rem;display:grid}.grid-cols-4{grid-template-columns:repeat(4,1fr);gap:1.5rem;display:grid}@media (max-width:1024px){.grid-cols-4,.grid-cols-3{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.grid-cols-4,.grid-cols-3,.grid-cols-2{grid-template-columns:1fr;gap:1rem}}.grid-2-responsive{grid-template-columns:repeat(2,1fr);gap:2rem;display:grid}.grid-3-responsive{grid-template-columns:repeat(3,1fr);gap:2rem;display:grid}.grid-4-responsive{grid-template-columns:repeat(4,1fr);gap:2rem;display:grid}@media (max-width:1024px){.grid-4-responsive,.grid-3-responsive{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.grid-4-responsive,.grid-3-responsive,.grid-2-responsive{grid-template-columns:1fr;gap:1rem}}.checkout-grid{grid-template-columns:1.8fr 1.2fr;align-items:start;gap:2.5rem;display:grid}.checkout-form-grid-2{grid-template-columns:repeat(2,1fr);gap:1.25rem;display:grid}.checkout-form-grid-3{grid-template-columns:repeat(3,1fr);gap:1.25rem;display:grid}@media (max-width:1024px){.checkout-grid{grid-template-columns:1fr;gap:2rem}}@media (max-width:640px){.checkout-form-grid-2,.checkout-form-grid-3{grid-template-columns:1fr;gap:.75rem}}.product-detail-grid{grid-template-columns:repeat(2,1fr);align-items:start;gap:4rem;display:grid}@media (max-width:1024px){.product-detail-grid{gap:2rem}}@media (max-width:768px){.product-detail-grid{grid-template-columns:1fr;gap:1.5rem}}.product-gallery-wrapper{background:var(--bg-tertiary);border-radius:var(--radius-lg);justify-content:center;align-items:center;width:100%;height:300px;display:flex;position:relative;overflow:hidden}@media (min-width:480px){.product-gallery-wrapper{height:380px}}@media (min-width:768px){.product-gallery-wrapper{height:440px}}@media (min-width:1024px){.product-gallery-wrapper{height:480px}}.table-row-hover{transition:background-color var(--transition-fast)}.table-row-hover:hover{background-color:var(--bg-tertiary)!important}.table-scroll-wrapper{-webkit-overflow-scrolling:touch;width:100%;overflow-x:auto}.nav-toggle-checkbox{display:none}.nav-toggle-label{cursor:pointer;z-index:101;flex-shrink:0;padding:.5rem;display:none}.nav-toggle-label span,.nav-toggle-label span:before,.nav-toggle-label span:after{background:var(--text-primary);width:24px;height:2px;transition:all var(--transition-fast);display:block;position:relative}.nav-toggle-label span:before,.nav-toggle-label span:after{content:"";position:absolute}.nav-toggle-label span:before{top:-8px}.nav-toggle-label span:after{bottom:-8px}@media (max-width:768px){.nav-toggle-label{display:block}.nav-links{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:99;flex-direction:column;width:100%;padding:1.25rem 1.5rem;display:none;position:absolute;top:4rem;left:0;box-shadow:0 10px 15px -3px #00000014;align-items:stretch!important;gap:0!important}.nav-links>*{border-bottom:1px solid var(--border-color);padding:.875rem 0}.nav-links>:last-child{border-bottom:none}.nav-toggle-checkbox:checked~.nav-links{display:flex}.nav-toggle-checkbox:checked+.nav-toggle-label span{background:0 0}.nav-toggle-checkbox:checked+.nav-toggle-label span:before{top:0;transform:rotate(45deg)}.nav-toggle-checkbox:checked+.nav-toggle-label span:after{bottom:0;transform:rotate(-45deg)}.session-container{flex-direction:column;align-items:flex-start;gap:.5rem;width:100%;border-left:none!important;margin-left:0!important;padding-left:0!important}}@media (min-width:769px){.navbar{height:5rem}.nav-links>*{border-bottom:none}}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-in{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes pulse-subtle{0%,to{transform:scale(1);box-shadow:0 4px 14px #f59e0b40}50%{transform:scale(1.02);box-shadow:0 6px 20px #f59e0b73}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-fade-in{animation:.6s cubic-bezier(.16,1,.3,1) forwards fadeIn}.animate-pulse-subtle{animation:2s ease-in-out infinite pulse-subtle}.stagger-1{animation-delay:.1s}.stagger-2{animation-delay:.2s}.stagger-3{animation-delay:.3s}.badge{text-transform:uppercase;letter-spacing:.05em;border-radius:9999px;align-items:center;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{color:var(--success);background:#10b9811a}.badge-danger{color:var(--danger);background:#ef44441a}.badge-brand{background:var(--brand-glow);color:var(--brand-dark)}.btn-close-hover:hover{background:#94a3b81a;color:var(--text-primary)!important}.hover-row:hover{background:#d4af3705!important}.table-row-hover:hover{background:var(--bg-tertiary)!important}.settings-toggle-checkbox:not(:checked)~.settings-content{display:none!important}.settings-toggle-checkbox:not(:checked)+label .chevron-icon{transform:rotate(-90deg)}.settings-toggle-checkbox+label .chevron-icon{transition:transform .2s;display:inline-block}.admin-sidebar-menu-item:hover{background:#ffffff0d;color:#fff!important}@media (max-width:640px){section{padding-top:3rem!important;padding-bottom:3rem!important}h2[style*="font-size: 2.5rem"],h2[style*="font-size: '2.5rem'"]{font-size:1.75rem!important}}.hide-mobile{display:block}.show-mobile{display:none}@media (max-width:640px){.hide-mobile{display:none!important}.show-mobile{display:block!important}footer .container>div{gap:1.5rem!important}footer [style*="justify-content: 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(max-width:768px){.header-row-container{gap:1rem}.header-logo-brand{order:1}.header-cart-widget{order:2}.header-search-form{flex-grow:0;order:3;width:100%;max-width:100%;margin-top:.25rem}.top-utility-container{text-align:center;flex-direction:column;justify-content:center;gap:.25rem}.top-utility-container>div{justify-content:center}.top-utility-links{justify-content:center;gap:.75rem}.top-session-group{justify-content:center;gap:.5rem}.catalog-layout-grid{grid-template-columns:1fr;gap:1.5rem}.mobile-filter-toggle{display:flex!important}.filter-options-wrapper{display:none!important}.filter-options-wrapper.mobile-active{display:flex!important}}.responsive-video-container{border-radius:var(--radius-md);background:#000;width:100%;height:0;padding-bottom:56.25%;position:relative;overflow:hidden}.responsive-video-container iframe,.responsive-video-container video{border:none;width:100%;height:100%;position:absolute;top:0;left:0}.premium-hero-wrapper{color:#fff;background:radial-gradient(circle at 100% 0,#0ea5e926 0%,#0f172a00 60%),linear-gradient(135deg,#0f172a 0%,#1e293b 100%);border-bottom:1px solid #ffffff0d;padding:6rem 0;position:relative;overflow:hidden}.hero-flex-layout{grid-template-columns:1.2fr .8fr;align-items:center;gap:4rem;display:grid}@media (max-width:1024px){.hero-flex-layout{text-align:center;grid-template-columns:1fr;gap:3rem}}.glowing-alert-badge{text-transform:uppercase;letter-spacing:.05em;color:#38bdf8;background:#0ea5e926;border:1px solid #0ea5e94d;border-radius:9999px;align-items:center;gap:.5rem;margin-bottom:1.5rem;padding:.5rem 1rem;font-size:.75rem;font-weight:700;animation:3s ease-in-out infinite pulse-badge;display:inline-flex;box-shadow:0 0 15px #0ea5e91a}@keyframes pulse-badge{0%,to{border-color:#0ea5e94d;box-shadow:0 0 15px #0ea5e91a}50%{border-color:#0ea5e999;box-shadow:0 0 25px #0ea5e94d}}.glowing-hero-title{letter-spacing:-.03em;background:linear-gradient(90deg,#fff 30%,#38bdf8 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1.5rem;font-size:clamp(2.5rem,5vw,4.5rem);font-weight:900;line-height:1.1}.hero-description-text{color:#94a3b8;max-width:600px;margin-bottom:2.5rem;font-size:1.15rem;line-height:1.7}@media (max-width:1024px){.hero-description-text{margin-left:auto;margin-right:auto}}.hero-button-row{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}@media (max-width:1024px){.hero-button-row{justify-content:center}}.book-deck-wrapper{justify-content:center;align-items:center;width:100%;height:380px;display:flex;position:relative}@media (max-width:1024px){.book-deck-wrapper{display:none}}.isometric-deck{width:220px;height:300px;position:relative;transform:rotate(-10deg)skew(5deg)}.floating-book-item{background:#fff;border:1px solid #ffffff1a;border-radius:12px;flex-direction:column;justify-content:space-between;width:100%;height:100%;padding:1.5rem;transition:all .4s;display:flex;position:absolute;overflow:hidden;box-shadow:-10px 10px 25px #0006}.book-card-1{color:#fff;z-index:3;background:linear-gradient(135deg,#1e1b4b 0%,#311042 100%);animation:6s ease-in-out infinite float-card-1;transform:translate(0)scale(1)}.book-card-2{color:#fff;z-index:2;opacity:.85;background:linear-gradient(135deg,#064e3b 0%,#115e59 100%);animation:6s ease-in-out infinite float-card-2;transform:translate(-30px,-20px)scale(.95)}.book-card-3{color:#fff;z-index:1;opacity:.7;background:linear-gradient(135deg,#78350f 0%,#7c2d12 100%);animation:6s ease-in-out infinite float-card-3;transform:translate(-60px,-40px)scale(.9)}@keyframes float-card-1{0%,to{transform:translate(0)scale(1)rotate(0)}50%{transform:translate(5px,-15px)scale(1.02)rotate(1deg)}}@keyframes float-card-2{0%,to{transform:translate(-30px,-20px)scale(.95)rotate(0)}50%{transform:translate(-22px,-32px)scale(.97)rotate(-1deg)}}@keyframes float-card-3{0%,to{transform:translate(-60px,-40px)scale(.9)rotate(0)}50%{transform:translate(-48px,-48px)scale(.92)rotate(-2deg)}}.category-underline-link{position:relative}.category-underline-link:after{content:"";background:#fbbf24;width:0;height:3px;transition:width .25s;position:absolute;bottom:0;left:0}.category-underline-link:hover:after{width:100%}.product-detail-gallery{flex-direction:column;gap:1.5rem;display:flex}@media (min-width:769px){.product-detail-gallery{position:sticky;top:2rem}}@media (max-width:480px){.cart-drawer-actions{flex-direction:column-reverse!important}}