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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.jrs-header {
    background: linear-gradient(135deg, #1a3a52 0%, #2d5a7b 100%);
    color: white;
    text-align: center;
    padding: 40px 20px;
}

.jrs-tagline {
    font-style: italic;
    font-size: 1.2rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.jrs-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 15px;
}

.jrs-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.jrs-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.jrs-intro-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.jrs-intro-text {
    margin-bottom: 15px;
    text-align: center;
}

.jrs-enrollment-note {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px 20px;
    margin-top: 20px;
    border-radius: 0 8px 8px 0;
}

.jrs-schedule-container {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
}

.jrs-filters {
    margin-bottom: 30px;
}

.jrs-filter-group {
    margin-bottom: 20px;
}

.jrs-filter-label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1a3a52;
    font-size: 0.9rem;
}

.jrs-day-filters, .jrs-category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.jrs-filter-btn, .jrs-category-btn {
    padding: 8px 16px;
    border: 2px solid #ddd;
    background: white;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.jrs-filter-btn:hover, .jrs-category-btn:hover {
    border-color: #1a3a52;
}

.jrs-filter-btn.active {
    background: #1a3a52;
    color: white;
    border-color: #1a3a52;
}

.jrs-category-btn.active {
    background: var(--cat-color, #1a3a52);
    color: white;
    border-color: var(--cat-color, #1a3a52);
}

.jrs-age-select {
    padding: 10px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    min-width: 200px;
}

.jrs-classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.jrs-class-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    border-top: 4px solid var(--card-color, #2196f3);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.jrs-class-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.jrs-class-card:hover .jrs-description-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.jrs-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.jrs-category-badge {
    background: var(--card-color, #2196f3);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.jrs-day-badge {
    background: #e0e0e0;
    color: #333;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
}

.jrs-class-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a3a52;
    margin-bottom: 12px;
    line-height: 1.3;
}

.jrs-class-details {
    flex-grow: 1;
    margin-bottom: 15px;
}

.jrs-detail {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: #555;
}

.jrs-icon {
    font-size: 1rem;
}

.jrs-hover-hint {
    font-size: 0.75rem;
    color: #999;
    text-align: center;
    margin-bottom: 10px;
    font-style: italic;
}

.jrs-description-tooltip {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    padding: 15px;
    margin-bottom: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
    max-height: 200px;
    overflow-y: auto;
}

.jrs-tooltip-content strong {
    display: block;
    background: #ffeb3b;
    color: #333;
    padding: 5px 10px;
    margin: -15px -15px 10px -15px;
    border-radius: 10px 10px 0 0;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.jrs-tooltip-content p {
    font-size: 0.85rem;
    color: #555;
    line-height: 1.5;
}

.jrs-register-btn {
    display: block;
    background: var(--card-color, #2196f3);
    color: white;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.3s ease;
}

.jrs-register-btn:hover {
    opacity: 0.9;
}

.jrs-register-btn.jrs-closed {
    background: #9e9e9e;
    cursor: not-allowed;
    opacity: 0.8;
    border: none;
    width: 100%;
    font-size: 14px;
    font-family: inherit;
}

.jrs-register-btn.jrs-closed:hover {
    opacity: 0.8;
}

.jrs-loading, .jrs-no-results, .jrs-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: #666;
}

.jrs-admin-toggle {
    text-align: center;
    margin-top: 30px;
}

.jrs-admin-btn {
    padding: 10px 20px;
    background: #1a3a52;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
}

.jrs-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.jrs-modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.jrs-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: #666;
}

#login-form {
    text-align: center;
}

#login-form input {
    padding: 12px;
    width: 100%;
    max-width: 300px;
    margin: 15px 0;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
}

#login-form button {
    padding: 12px 30px;
    background: #1a3a52;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
}

.jrs-clear-cache-btn {
    background: #e74c3c;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 20px;
}

.category-item {
    background: #f5f5f5;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--cat-color);
}

.category-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: #555;
}

.category-item input, .category-item textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 10px;
}

.category-item textarea {
    min-height: 60px;
    resize: vertical;
}

.category-item button {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
}

.save-btn {
    background: #4caf50;
    color: white;
}

.delete-btn {
    background: #f44336;
    color: white;
}

.hidden {
    display: none !important;
}

@media (max-width: 768px) {
    .jrs-title {
        font-size: 1.8rem;
    }
    
    .jrs-classes-grid {
        grid-template-columns: 1fr;
    }
}