.winter-hub-container{max-width:1200px;margin:0 auto;padding:1rem}.winter-hub-header{text-align:center;margin-bottom:2rem;padding:2rem 1rem;background:linear-gradient(135deg,#1e40af 0%,#3b82f6 100%);border-radius:20px;color:white}.winter-hub-header h1{font-size:2rem;margin:0 0 0.5rem;display:flex;align-items:center;justify-content:center;gap:0.75rem}.winter-hub-header .subtitle{font-size:1.1rem;opacity:0.9;margin-bottom:1rem}.winter-hub-header .intro{max-width:700px;margin:0 auto;font-size:0.95rem;opacity:0.85;line-height:1.6}.winter-icon-nav{display:flex;justify-content:center;gap:0.5rem;margin-bottom:2rem;padding:0.75rem;background:var(--bs-body-bg);border-radius:16px;box-shadow:0 2px 8px rgba(0,0,0,0.08);flex-wrap:nowrap;overflow-x:auto}.winter-nav-item{display:flex;flex-direction:column;align-items:center;gap:0.25rem;padding:0.5rem 0.75rem;border-radius:10px;text-decoration:none;color:var(--bs-body-color);background:var(--bs-tertiary-bg);transition:all 0.2s ease;min-width:0;flex:0 0 auto}.winter-nav-item i{font-size:1.25rem;color:#3b82f6}.winter-nav-item span{font-size:0.7rem;font-weight:600;white-space:nowrap}.winter-nav-item:hover{background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;transform:translateY(-2px)}.winter-nav-item:hover i{color:#fff}.winter-breadcrumb{margin-bottom:1.5rem}.winter-breadcrumb ol{display:flex;flex-wrap:wrap;padding:0;margin:0;list-style:none;gap:0.5rem;font-size:0.9rem}.winter-breadcrumb li::after{content:'/';margin-left:0.5rem;color:var(--bs-secondary-color)}.winter-breadcrumb li:last-child::after{display:none}.winter-breadcrumb a{color:var(--bs-link-color);text-decoration:none}.winter-info-section{margin-bottom:2rem}.winter-info-section h2{font-size:1.5rem;font-weight:700;margin-bottom:1rem;color:var(--bs-heading-color)}.winter-info-card{background:var(--bs-body-bg);border:1px solid var(--bs-border-color);border-radius:12px;padding:1.5rem;margin-bottom:1rem}.winter-info-card h3{font-size:1.1rem;font-weight:600;margin-bottom:0.75rem;color:var(--bs-heading-color)}.winter-info-card p{margin-bottom:0.5rem;color:var(--bs-body-color);line-height:1.6}.winter-classification-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;margin-bottom:2rem}.winter-class-card{background:var(--bs-body-bg);border:1px solid var(--bs-border-color);border-radius:12px;padding:1.25rem;text-align:center}.winter-class-card.mandatory{border-left:4px solid #ef4444}.winter-class-card.situational{border-left:4px solid #f59e0b}.winter-class-card.regional{border-left:4px solid #10b981}.winter-class-card h3{font-size:1rem;font-weight:700;margin-bottom:0.5rem}.winter-class-card p{font-size:0.9rem;color:var(--bs-secondary-color);margin:0}.winter-country-accordion{margin-bottom:2rem}.winter-country-item{background:var(--bs-body-bg);border:1px solid var(--bs-border-color);border-radius:12px;margin-bottom:0.75rem;overflow:hidden}.winter-country-header{display:flex;align-items:center;gap:0.75rem;padding:1rem 1.25rem;cursor:pointer;user-select:none}.winter-country-header:hover{background:var(--bs-tertiary-bg)}.winter-country-flag{font-size:1.5rem}.winter-country-name{font-weight:600;flex:1}.winter-country-badge{font-size:0.75rem;padding:0.2rem 0.6rem;border-radius:12px;background:#3b82f6;color:white}.winter-country-toggle{color:var(--bs-secondary-color);transition:transform 0.2s}.winter-country-item.open .winter-country-toggle{transform:rotate(180deg)}.winter-country-content{display:none;padding:0 1.25rem 1.25rem;border-top:1px solid var(--bs-border-color)}.winter-country-item.open .winter-country-content{display:block}.winter-country-detail{display:flex;padding:0.5rem 0;border-bottom:1px solid var(--bs-border-color-translucent)}.winter-country-detail:last-child{border-bottom:none}.winter-country-label{font-weight:600;width:120px;flex-shrink:0;color:var(--bs-secondary-color);font-size:0.85rem}.winter-country-value{flex:1;font-size:0.9rem}.winter-chains-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem;margin-bottom:1.5rem}.winter-chain-card{background:var(--bs-body-bg);border:1px solid var(--bs-border-color);border-radius:12px;padding:1.25rem}.winter-chain-card h4{font-size:1rem;font-weight:600;margin-bottom:0.5rem;display:flex;align-items:center;gap:0.5rem}.winter-chain-card h4 i{color:#3b82f6}.winter-chain-card p{font-size:0.9rem;color:var(--bs-secondary-color);margin:0;line-height:1.5}.winter-table-wrapper{overflow-x:auto;margin-bottom:2rem}.winter-table{width:100%;border-collapse:collapse;font-size:0.9rem}.winter-table th,.winter-table td{padding:0.75rem;text-align:left;border-bottom:1px solid var(--bs-border-color)}.winter-table th{background:var(--bs-tertiary-bg);font-weight:600;white-space:nowrap}.winter-table tr:hover{background:var(--bs-tertiary-bg)}.winter-table .country-cell{display:flex;align-items:center;gap:0.5rem}.winter-table .flag{font-size:1.25rem}.winter-table .studs-yes{color:#10b981}.winter-table .studs-no{color:#ef4444}.winter-table .studs-limited{color:#f59e0b}.winter-table-subtitle{color:var(--bs-secondary-color);font-size:0.95rem;margin-bottom:1.5rem;text-align:center}.winter-table-controls{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1rem;align-items:center;justify-content:space-between}.winter-search-box{position:relative;flex:1;min-width:200px;max-width:300px}.winter-search-box i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--bs-secondary-color)}.winter-search-box input{width:100%;padding:0.6rem 0.75rem 0.6rem 2.5rem;border:1px solid var(--bs-border-color);border-radius:8px;background:var(--bs-body-bg);color:var(--bs-body-color);font-size:0.9rem}.winter-search-box input:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.winter-filter-buttons{display:flex;gap:0.5rem}.filter-btn{padding:0.5rem 1rem;border:1px solid var(--bs-border-color);border-radius:8px;background:var(--bs-body-bg);color:var(--bs-body-color);font-size:0.85rem;cursor:pointer;transition:all 0.2s}.filter-btn:hover{border-color:#3b82f6;color:#3b82f6}.filter-btn.active{background:#3b82f6;border-color:#3b82f6;color:white}.winter-table-enhanced{min-width:900px}.winter-table-enhanced th{position:sticky;top:0;background:var(--bs-tertiary-bg);z-index:10}.winter-table-enhanced .sticky-col{position:sticky;left:0;background:var(--bs-body-bg);z-index:5}.winter-table-enhanced thead .sticky-col{z-index:15;background:var(--bs-tertiary-bg)}.winter-table-enhanced .country-cell{min-width:150px;font-weight:600}.badge-mandatory{display:inline-flex;align-items:center;gap:0.3rem;padding:0.25rem 0.6rem;background:linear-gradient(135deg,#10b981 0%,#059669 100%);color:white;border-radius:12px;font-size:0.75rem;font-weight:600;white-space:nowrap}.badge-not-mandatory{display:inline-block;padding:0.25rem 0.6rem;background:var(--bs-tertiary-bg);color:var(--bs-secondary-color);border-radius:12px;font-size:0.75rem}.winter-table-enhanced .marking-cell{font-size:0.8rem;max-width:150px}.winter-table-enhanced .fine-cell{white-space:nowrap}.winter-table-enhanced .depth-cell{white-space:nowrap;font-weight:500}.winter-table-note{margin-top:1rem;padding:0.75rem 1rem;background:var(--bs-tertiary-bg);border-radius:8px;font-size:0.85rem;color:var(--bs-secondary-color);display:flex;align-items:center;gap:0.5rem}.winter-table-note i{color:#3b82f6}@media(max-width:768px){.winter-table-controls{flex-direction:column;align-items:stretch}.winter-search-box{max-width:none}.winter-filter-buttons{justify-content:center}.winter-table-enhanced{font-size:0.8rem}.badge-mandatory,.badge-not-mandatory{font-size:0.7rem;padding:0.2rem 0.4rem}}.winter-tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-bottom:2rem}.winter-tip-card{background:var(--bs-body-bg);border:1px solid var(--bs-border-color);border-radius:12px;padding:1.25rem}.winter-tip-card h4{font-size:0.95rem;font-weight:600;margin-bottom:0.5rem;display:flex;align-items:center;gap:0.5rem}.winter-tip-card h4 i{color:#10b981}.winter-tip-card p{font-size:0.9rem;color:var(--bs-secondary-color);margin:0;line-height:1.5}.winter-alert{background:linear-gradient(135deg,#fef3c7 0%,#fde68a 100%);border:1px solid #f59e0b;border-radius:12px;padding:1.25rem;margin-bottom:2rem;display:flex;gap:1rem;align-items:flex-start}.winter-alert i{color:#d97706;font-size:1.5rem;flex-shrink:0}.winter-alert-content h4{font-size:1rem;font-weight:600;margin-bottom:0.5rem;color:#92400e}.winter-alert-content p{font-size:0.9rem;color:#78350f;margin:0;line-height:1.5}[data-theme="dark"] .winter-alert{background:linear-gradient(135deg,#451a03 0%,#78350f 100%);border-color:#d97706}[data-theme="dark"] .winter-alert-content h4{color:#fcd34d}[data-theme="dark"] .winter-alert-content p{color:#fde68a}[data-theme="dark"] .winter-class-card{background:#1e293b;border-color:#334155}[data-theme="dark"] .winter-class-card h3{color:#f1f5f9}[data-theme="dark"] .winter-class-card p{color:#94a3b8}[data-theme="dark"] .winter-country-item{background:#1e293b;border-color:#334155}[data-theme="dark"] .winter-country-header:hover{background:#334155}[data-theme="dark"] .winter-country-name{color:#f1f5f9}[data-theme="dark"] .winter-country-label{color:#94a3b8}[data-theme="dark"] .winter-country-value{color:#e2e8f0}[data-theme="dark"] .winter-country-content{border-top-color:#334155}[data-theme="dark"] .winter-country-detail{border-bottom-color:#334155}[data-theme="dark"] .winter-info-card{background:#1e293b;border-color:#334155}[data-theme="dark"] .winter-info-card h3{color:#f1f5f9}[data-theme="dark"] .winter-info-card p{color:#cbd5e1}[data-theme="dark"] .winter-chain-card{background:#1e293b;border-color:#334155}[data-theme="dark"] .winter-chain-card h4{color:#f1f5f9}[data-theme="dark"] .winter-chain-card p{color:#94a3b8}[data-theme="dark"] .winter-tip-card{background:#1e293b;border-color:#334155}[data-theme="dark"] .winter-tip-card h4{color:#f1f5f9}[data-theme="dark"] .winter-tip-card p{color:#94a3b8}[data-theme="dark"] .winter-table th{background:#1e293b;color:#f1f5f9}[data-theme="dark"] .winter-table td{color:#e2e8f0}[data-theme="dark"] .winter-table tr:hover{background:#334155}[data-theme="dark"] .winter-table-enhanced .sticky-col{background:#0f172a}[data-theme="dark"] .winter-table-enhanced thead .sticky-col{background:#1e293b}[data-theme="dark"] .badge-not-mandatory{background:#334155;color:#94a3b8}[data-theme="dark"] .winter-table-note{background:#1e293b;color:#94a3b8}[data-theme="dark"] .winter-search-box input{background:#1e293b;border-color:#334155;color:#f1f5f9}[data-theme="dark"] .filter-btn{background:#1e293b;border-color:#334155;color:#e2e8f0}[data-theme="dark"] .filter-btn:hover{border-color:#3b82f6;color:#60a5fa}.winter-back-link{display:inline-flex;align-items:center;gap:0.5rem;color:var(--bs-link-color);text-decoration:none;font-size:0.9rem;margin-top:1rem}.winter-back-link:hover{text-decoration:underline}@media(max-width:768px){.winter-hub-header h1{font-size:1.5rem}.winter-country-label{width:100px}.winter-table{font-size:0.8rem}.winter-table th,.winter-table td{padding:0.5rem}}