* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
    padding: 20px;
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

.search-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 30px;
}

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
}

#searchInput {
    flex: 1;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    transition: all 0.3s ease;
}

#searchInput:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#searchBtn {
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#searchBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

#searchBtn:active {
    transform: translateY(0);
}

.filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.filter-group select,
.filter-group input {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: #667eea;
}

#clearFilters {
    padding: 10px 20px;
    background: #f5f5f5;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

#clearFilters:hover {
    background: #e0e0e0;
    color: #333;
}

.results-count {
    color: white;
    font-size: 1.1em;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.cartridge-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cartridge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.cartridge-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.cartridge-model {
    font-size: 1.3em;
    font-weight: 700;
    color: #333;
}

.cartridge-brand {
    font-size: 0.9em;
    color: #667eea;
    font-weight: 600;
    background: #f0f4ff;
    padding: 4px 12px;
    border-radius: 20px;
}

.cartridge-details {
    margin-bottom: 15px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95em;
}

.detail-label {
    color: #666;
    font-weight: 500;
}

.detail-value {
    color: #333;
    font-weight: 600;
}

.color-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85em;
    font-weight: 600;
}

.color-Black {
    background: #333;
    color: white;
}

.color-Cyan {
    background: #00bcd4;
    color: white;
}

.color-Magenta {
    background: #e91e63;
    color: white;
}

.color-Yellow {
    background: #ffd700;
    color: #333;
}

.color-Tri-color,
.color-Color {
    background: linear-gradient(135deg, #00bcd4, #e91e63, #ffd700);
    color: white;
}

.compatible-printers {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
}

.compatible-printers-label {
    font-size: 0.85em;
    color: #666;
    font-weight: 600;
    margin-bottom: 5px;
}

.compatible-printers-list {
    font-size: 0.85em;
    color: #555;
    line-height: 1.4;
}



.loading {
    text-align: center;
    padding: 60px 20px;
    color: white;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.no-results {
    background: white;
    padding: 60px 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.no-results p {
    font-size: 1.2em;
    color: #666;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .search-bar {
        flex-direction: column;
    }

    .filters {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}