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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: #00213F;
    margin-bottom: 30px;
    border-bottom: 4px solid #FF425A;
}

header h1 {
    color: white;
    font-size: 2.2em;
    margin-bottom: 8px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.05em;
    font-weight: 400;
}

.filters-section {
    background: white;
    padding: 25px;
    border: 1px solid #e0e0e0;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 500;
    color: #333;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group select,
.filter-group input {
    padding: 10px 12px;
    border: 1px solid #d0d0d0;
    font-size: 1em;
    transition: border-color 0.2s;
    background: white;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: #00213F;
}

.reset-btn {
    padding: 10px 25px;
    background: #FF425A;
    color: white;
    border: none;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
    height: fit-content;
}

.reset-btn:hover {
    background: #e63850;
}

.table-wrapper {
    background: white;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: #00213F;
    color: white;
    border-bottom: 3px solid #FF425A;
}

thead th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8em;
    letter-spacing: 0.8px;
}

tbody tr {
    border-bottom: 1px solid #e8e8e8;
}

tbody tr:hover {
    background: #fafafa;
}

tbody tr.hidden {
    display: none;
}

tbody td {
    padding: 14px 16px;
    vertical-align: top;
    font-size: 0.95em;
}

.size-badge {
    display: inline-block;
    padding: 4px 10px;
    font-weight: 500;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.size-big {
    background: #FF425A;
    color: white;
}

.size-medium {
    background: #00213F;
    color: white;
}

.size-small {
    background: #666;
    color: white;
}

.difficulty-badge {
    display: inline-block;
    padding: 4px 10px;
    font-weight: 500;
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-Hard {
    background: #FF425A;
    color: white;
}

.difficulty-Medium {
    background: #00213F;
    color: white;
}

.difficulty-Easy {
    background: #5A8FBF;
    color: white;
}

.keywords-list,
.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.keyword-tag,
.skill-tag {
    padding: 3px 8px;
    background: #f0f0f0;
    color: #333;
    font-size: 0.75em;
    font-weight: 400;
    border: 1px solid #d0d0d0;
}

.skill-tag {
    background: #fff;
    color: #FF425A;
    border-color: #FF425A;
}

.description-cell {
    max-width: 400px;
    line-height: 1.5;
    color: #666;
}

footer {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 0.9em;
    background: white;
    border-top: 1px solid #e0e0e0;
}

footer a {
    color: #00213F;
    text-decoration: none;
    font-weight: 500;
}

footer a:hover {
    color: #FF425A;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .table-wrapper {
        overflow-x: auto;
    }
    
    table {
        min-width: 1000px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }
    
    .filters-section {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .reset-btn {
        width: 100%;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal.show {
    display: block;
}

.modal-content {
    background: white;
    margin: 50px auto;
    padding: 0;
    width: 90%;
    max-width: 900px;
    border: 1px solid #d0d0d0;
    max-height: 85vh;
    overflow-y: auto;
}

.close-btn {
    position: sticky;
    top: 0;
    right: 0;
    float: right;
    font-size: 28px;
    font-weight: normal;
    color: #666;
    cursor: pointer;
    padding: 15px 20px;
    background: white;
    z-index: 1;
}

.close-btn:hover,
.close-btn:focus {
    color: #00213F;
}

#modalBody {
    padding: 30px 40px 40px;
}

.modal-header {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.modal-title {
    font-size: 1.8em;
    color: #00213F;
    margin-bottom: 15px;
    line-height: 1.3;
    font-weight: 600;
}

.modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
}

.modal-section {
    margin-bottom: 25px;
}

.modal-section h3 {
    color: #00213F;
    font-size: 1.1em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-section p {
    color: #666;
    line-height: 1.8;
    font-size: 1em;
}

.modal-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.modal-list-item {
    padding: 8px 15px;
    background: linear-gradient(135deg, #00213F 0%, #FF425A 100%);
    color: white;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
}

.modal-features-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
}

.modal-features-list {
    list-style: none;
    padding: 0;
    margin: 15px 0 0 0;
}

.modal-features-list li {
    padding: 10px 12px;
    margin-bottom: 8px;
    background: #fafafa;
    border-left: 3px solid #00213F;
    line-height: 1.6;
    color: #555;
}

.modal-features-list li:last-child {
    margin-bottom: 0;
}

.modal-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.modal-info-item {
    padding: 15px;
    background: #fafafa;
    border: 1px solid #e0e0e0;
}

.modal-info-label {
    font-weight: 500;
    color: #666;
    font-size: 0.75em;
    text-transform: uppercase;
    margin-bottom: 5px;
    letter-spacing: 0.8px;
}

.modal-info-value {
    color: #00213F;
    font-size: 1em;
    font-weight: 500;
}

tbody tr {
    cursor: pointer;
}

@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px auto;
        max-height: 90vh;
    }
    
    #modalBody {
        padding: 20px;
    }
    
    .modal-title {
        font-size: 1.5em;
    }
    
    .modal-info-grid {
        grid-template-columns: 1fr;
    }
}