:root{--primary:#1E293B;--primary-dark:#0F172A;--accent:#dc2626;--accent-hover:#b91c1c;--text-primary:#0F172A;--text-secondary:#475569;--border:#E2E8F0;--bg-light:#F8FAFC}.header-wrapper{perspective:1000px;position:sticky;top:0;z-index:100}.site-header{background:linear-gradient(180deg,#1a2332 0,#0d1321 100%);transform-style:preserve-3d;box-shadow:0 4px 12px rgba(0,0,0,.15),0 12px 32px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.06);position:relative;z-index:50}.site-header::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent 10%,rgba(255,255,255,.15) 50%,transparent 90%)}.site-header::after{content:'';position:absolute;bottom:-12px;left:0;right:0;height:12px;background:linear-gradient(180deg,rgba(0,0,0,.12),transparent);pointer-events:none}.top-bar{background:rgba(0,0,0,.35);color:rgba(255,255,255,.8);font-size:13px;font-weight:500;line-height:1.4;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}.top-bar-container{display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:0 32px}.top-bar-left{display:flex;align-items:center;gap:12px}.top-bar-right{display:flex;align-items:center;gap:16px}.top-bar a{color:rgba(255,255,255,.7);text-decoration:none;transition:color .2s ease}.top-bar a:hover{color:#fff}.main-header{background:0 0;position:relative;z-index:50;padding:20px 0}.header-container{display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:0 32px;gap:32px;min-height:64px}.logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0;gap:3px;letter-spacing:-.5px;text-shadow:0 2px 8px rgba(0,0,0,.4);transition:transform .3s,text-shadow .3s,filter .3s}.logo:hover{transform:scale(1.05);text-shadow:0 4px 12px rgba(0,0,0,.5);filter:brightness(1.1)}.logo-car{font-size:36px;font-weight:800;color:#fff;line-height:1}.logo-trier{font-size:36px;font-weight:800;color:var(--accent);line-height:1}.desktop-nav{display:flex;align-items:center;gap:4px;background:rgba(255,255,255,.08);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:50px;padding:8px 10px;border:1px solid rgba(255,255,255,.12);box-shadow:0 4px 24px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.15),inset 0 -1px 0 rgba(0,0,0,.1)}.nav-item{position:relative}.nav-item[data-dropdown]{position:relative}.nav-btn{display:flex;align-items:center;gap:8px;padding:14px 24px;border:none;background:0 0;font-family:inherit;font-size:15px;font-weight:600;color:#fff;cursor:pointer;border-radius:50px;transition:all .25s cubic-bezier(.4, 0, .2, 1);white-space:nowrap;letter-spacing:.02em;text-shadow:0 1px 3px rgba(0,0,0,.3)}.nav-btn:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.3)}.nav-arrow{width:16px;height:16px;transition:transform .25s ease;flex-shrink:0;opacity:.8}.nav-arrow svg{width:16px;height:16px;display:block}.nav-link{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;font-size:15px;font-weight:600;color:#fff;text-decoration:none;border-radius:50px;transition:all .25s cubic-bezier(.4, 0, .2, 1);white-space:nowrap;background:0 0;letter-spacing:.02em;text-shadow:0 1px 3px rgba(0,0,0,.3)}.nav-link:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.3)}.nav-btn.active,.nav-link.active{background:linear-gradient(135deg,var(--accent) 0,var(--accent-hover) 100%);color:#fff;box-shadow:0 4px 20px rgba(220,38,38,.5),inset 0 1px 0 rgba(255,255,255,.3);text-shadow:0 1px 2px rgba(0,0,0,.3);transform:translateY(-1px)}.nav-link-compare{position:relative}.compare-badge-count{position:absolute;top:6px;right:6px;min-width:18px;height:18px;padding:0 5px;background:linear-gradient(135deg,#22c55e 0,#16a34a 100%);color:#fff;font-size:11px;font-weight:700;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(34,197,94,.4);animation:badge-pop .3s ease}@keyframes badge-pop{0%{transform:scale(0)}50%{transform:scale(1.2)}100%{transform:scale(1)}}.nav-item.active .nav-btn{background:rgba(255,255,255,.2);color:#fff;box-shadow:0 4px 16px rgba(0,0,0,.25)}.nav-item.active .nav-arrow{transform:rotate(180deg)}.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border-radius:16px;box-shadow:0 25px 50px -12px rgba(0,0,0,.15),0 0 0 1px rgba(0,0,0,.03);border:1px solid var(--border);min-width:800px;z-index:50;padding:24px;opacity:0;visibility:hidden;transform:translateX(-50%) translateY(8px);transition:opacity .2s ease,visibility .2s ease,transform .2s ease}.nav-item.active .mega-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}.mega-menu-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.mega-col h4{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin:0 0 12px 0;padding:0 8px}.mega-link{display:flex;align-items:flex-start;gap:12px;padding:10px 8px;border-radius:10px;text-decoration:none;color:inherit;transition:background-color .15s ease}.mega-link:hover{background-color:var(--bg-light)}.mega-link-icon{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.mega-link-icon.summer{background-color:#fef3c7;color:#d97706}.mega-link-icon.winter{background-color:#dbeafe;color:#2563eb}.mega-link-icon.allseason{background-color:#d1fae5;color:#059669}.mega-link-icon svg{width:20px;height:20px}.mega-link-text{display:flex;flex-direction:column;gap:2px;min-width:0}.mega-link-title{font-size:14px;font-weight:600;color:var(--text-primary);line-height:1.3}.mega-link-desc{font-size:12px;color:var(--text-secondary);line-height:1.4}.mega-link-simple{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:500;color:var(--text-primary);transition:background-color .15s ease}.mega-link-simple:hover{background-color:var(--bg-light)}.mega-link-simple .dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.mega-link-simple .dot.performance{background-color:#dc2626}.mega-link-simple .dot.touring{background-color:#2563eb}.mega-link-simple .dot.suv{background-color:#059669}.mega-link-simple .dot.truck{background-color:#6b7280}.mega-link-all{display:inline-flex;align-items:center;gap:6px;padding:8px;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none;border-radius:8px;transition:background-color .15s ease}.mega-link-all:hover{background-color:rgba(225,29,72,.06)}.mega-link-all svg{width:16px;height:16px}.size-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.size-chip{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;font-size:13px;font-weight:500;color:var(--text-secondary);background-color:var(--bg-light);border:1px solid var(--border);border-radius:20px;text-decoration:none;transition:border-color .15s ease,color .15s ease,background-color .15s ease;white-space:nowrap}.size-chip:hover{border-color:var(--accent);color:var(--accent);background-color:rgba(225,29,72,.04)}.mega-featured{background:linear-gradient(135deg,#fff1f2 0,#ffe4e6 100%);border-radius:12px;padding:20px;grid-column:span 1}.featured-card{display:flex;flex-direction:column;gap:12px}.featured-badge{display:inline-flex;align-items:center;padding:4px 10px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);background-color:rgba(225,29,72,.1);border-radius:20px;width:fit-content}.featured-btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;font-size:14px;font-weight:600;color:#fff;background-color:var(--accent);border:none;border-radius:8px;text-decoration:none;cursor:pointer;transition:background-color .2s ease}.featured-btn:hover{background-color:#be123c}.tools-dropdown{position:absolute;top:100%;right:0;background:#fff;border-radius:16px;box-shadow:0 25px 50px -12px rgba(0,0,0,.15),0 0 0 1px rgba(0,0,0,.03);border:1px solid var(--border);min-width:380px;z-index:50;padding:16px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,visibility .2s ease,transform .2s ease}.nav-item.active .tools-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.tools-section{padding:4px 0}.tools-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin:0 0 8px 0;padding:0 8px}.tool-link{display:flex;align-items:flex-start;gap:12px;padding:10px 8px;border-radius:10px;text-decoration:none;color:inherit;transition:background-color .15s ease}.tool-link:hover{background-color:var(--bg-light)}.tool-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.tool-icon.purple{background-color:rgba(124,58,237,.1);color:#7c3aed}.tool-icon.blue{background-color:rgba(2,132,199,.1);color:#0284c7}.tool-icon.green{background-color:rgba(5,150,105,.1);color:#059669}.tool-icon.red{background-color:rgba(220,38,38,.1);color:#dc2626}.tool-icon svg{width:20px;height:20px}.tool-text{display:flex;flex-direction:column;gap:2px;min-width:0}.tool-title{font-size:14px;font-weight:600;color:var(--text-primary);line-height:1.3}.tool-desc{font-size:12px;color:var(--text-secondary);line-height:1.4}.tools-divider{border:none;border-top:1px solid var(--border);margin:8px 0}.guide-link{display:flex;align-items:center;gap:8px;padding:8px;font-size:14px;font-weight:500;color:var(--text-primary);text-decoration:none;border-radius:8px;transition:background-color .15s ease}.guide-link:hover{background-color:var(--bg-light)}.guide-link svg{width:18px;height:18px;color:var(--text-secondary)}.tools-footer{padding-top:8px}.tools-footer a{display:inline-flex;align-items:center;gap:6px;padding:8px;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none;border-radius:8px;transition:background-color .15s ease}.tools-footer a:hover{background-color:rgba(225,29,72,.06)}.search-btn{display:flex;align-items:center;gap:10px;padding:14px 22px;background:rgba(255,255,255,.08);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.15);border-radius:50px;font-family:inherit;font-size:14px;font-weight:500;color:rgba(255,255,255,.7);cursor:pointer;transition:all .25s ease;white-space:nowrap;box-shadow:0 2px 12px rgba(0,0,0,.15),inset 0 1px 0 rgba(255,255,255,.1);min-width:180px}.search-btn:focus-within,.search-btn:hover{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.3);box-shadow:0 4px 20px rgba(0,0,0,.25),0 0 0 3px rgba(255,255,255,.1);color:#fff;transform:translateY(-1px)}.search-btn svg{width:18px;height:18px;flex-shrink:0;color:rgba(255,255,255,.7);transition:color .2s ease}.search-btn:hover svg{color:#fff}.search-overlay{position:fixed;inset:0;background-color:rgba(0,0,0,.5);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding-top:120px;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}.search-overlay.active{opacity:1;visibility:visible}.search-modal{background:#fff;border-radius:16px;box-shadow:0 25px 50px -12px rgba(0,0,0,.25);width:100%;max-width:640px;margin:0 24px;overflow:hidden;transform:translateY(-16px);transition:transform .25s ease}.search-overlay.active .search-modal{transform:translateY(0)}.search-header{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}.search-header svg{width:20px;height:20px;color:var(--text-secondary);flex-shrink:0}.search-header input{flex:1;border:none;outline:0;font-family:inherit;font-size:16px;color:var(--text-primary);background:0 0}.search-header input::placeholder{color:var(--text-secondary)}.search-close-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--border);border-radius:8px;background:0 0;cursor:pointer;color:var(--text-secondary);flex-shrink:0;transition:background-color .15s ease,color .15s ease}.search-close-btn:hover{background-color:var(--bg-light);color:var(--text-primary)}.search-close-btn svg{width:16px;height:16px}.search-suggestions{padding:16px 20px}.search-suggestions a{display:inline-block;padding:6px 12px;margin:4px;font-size:13px;color:var(--text-secondary);background-color:var(--bg-light);border-radius:20px;text-decoration:none;transition:color .15s ease,background-color .15s ease}.search-suggestions a:hover{color:var(--accent);background-color:rgba(225,29,72,.06)}.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:none;border-radius:10px;background:rgba(255,255,255,.1);cursor:pointer;color:#fff;transition:all .3s ease}.mobile-menu-btn:hover{background:rgba(255,255,255,.2);transform:scale(1.05)}.mobile-menu-btn svg{width:24px;height:24px}.mobile-overlay{position:fixed;inset:0;background-color:rgba(0,0,0,.5);z-index:50;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.mobile-overlay.active{opacity:1;visibility:visible}.mobile-menu{position:fixed;top:0;right:0;bottom:0;width:100%;max-width:320px;background:#fff;z-index:51;overflow-y:auto;transform:translateX(100%);transition:transform .3s cubic-bezier(.4, 0, .2, 1);box-shadow:-4px 0 24px rgba(0,0,0,.12)}.mobile-menu.active{transform:translateX(0)}.mobile-menu-content{padding:20px}.mobile-menu-close{display:flex;align-items:center;justify-content:flex-end;padding:12px 20px;border-bottom:1px solid var(--border)}.mobile-menu-close button{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:8px;background:0 0;cursor:pointer;color:var(--text-secondary);transition:background-color .15s ease}.mobile-menu-close button:hover{background-color:var(--bg-light)}.mobile-menu-close button svg{width:20px;height:20px}.mobile-section{border-bottom:1px solid var(--border)}.mobile-section-header{display:flex;align-items:center;justify-content:space-between;width:100%;padding:14px 0;border:none;background:0 0;font-family:inherit;font-size:15px;font-weight:600;color:var(--text-primary);cursor:pointer;text-align:left}.mobile-section-header svg{width:18px;height:18px;color:var(--text-secondary);transition:transform .25s ease}.mobile-section.active .mobile-section-header svg{transform:rotate(180deg)}.mobile-section-content{display:none;padding-bottom:12px}.mobile-section.active .mobile-section-content{display:block}.mobile-section-content a{display:flex;align-items:center;gap:10px;padding:10px 8px;font-size:14px;color:var(--text-secondary);text-decoration:none;border-radius:8px;transition:background-color .15s ease,color .15s ease}.mobile-section-content a:hover{background-color:var(--bg-light);color:var(--text-primary)}.mobile-main-links{padding:12px 0}.mobile-main-links a{display:flex;align-items:center;gap:10px;padding:12px 0;font-size:15px;font-weight:500;color:var(--text-primary);text-decoration:none;border-bottom:1px solid var(--border);transition:color .15s ease}.mobile-main-links a:last-child{border-bottom:none}.mobile-main-links a:hover{color:var(--accent)}.mobile-main-links a svg{width:20px;height:20px;color:var(--text-secondary)}.mobile-compare-link{position:relative}.mobile-compare-link .compare-badge-count{position:static;margin-left:8px;min-width:20px;height:20px;padding:0 6px;background:linear-gradient(135deg,#22c55e 0,#16a34a 100%);color:#fff;font-size:12px;font-weight:700;border-radius:10px;display:inline-flex;align-items:center;justify-content:center}.site-header.is-sticky{position:fixed;top:0;left:0;right:0;z-index:50;box-shadow:0 4px 12px rgba(0,0,0,.1)}.site-header.is-sticky .top-bar{display:none}.site-header.is-sticky .header-container{padding-top:8px;padding-bottom:8px}.site-header.is-sticky .logo-car,.site-header.is-sticky .logo-trier{font-size:20px}.header-placeholder{display:none}.site-header.is-sticky+.header-placeholder{display:block}.lang-switcher{display:flex;align-items:center;gap:6px}.lang-btn{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;overflow:hidden;border:2px solid transparent;cursor:pointer;padding:0;background:0 0;transition:border-color .2s ease}.lang-btn:hover{border-color:rgba(255,255,255,.5)}.lang-btn.active{border-color:var(--accent)}.flag-icon{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.flag-icon svg{width:100%;height:100%;border-radius:50%;display:block}@media (max-width:1024px){.desktop-nav{display:none}.search-btn span{display:none}.search-btn{padding:12px;border-radius:50px;min-width:auto;width:auto}.mobile-menu-btn{display:flex}.header-container{gap:16px}.logo-car,.logo-trier{font-size:28px}.main-header{padding:20px 0}.mega-menu,.tools-dropdown{display:none!important}}@media (max-width:768px){.top-bar{font-size:12px;padding:4px 0}.top-bar-container{padding:0 16px}.top-bar-left{display:none}.top-bar-right{width:100%;justify-content:flex-end;gap:12px}.header-container{padding:10px 16px}.logo-car,.logo-trier{font-size:20px}.search-overlay{padding-top:80px}.search-modal{margin:0 16px;border-radius:12px}.mobile-menu{max-width:100%}.site-header.is-sticky .header-container{padding:8px 16px}.site-header.is-sticky .logo-car,.site-header.is-sticky .logo-trier{font-size:18px}}