.achievement-modal {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 10000;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .achievement-modal.active {
        opacity: 1;
        visibility: visible;
    }
    
    .modal-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.8);
        backdrop-filter: blur(5px);
    }
    
    .modal-container {
        position: relative;
        max-width: 500px;
        width: 90%;
        background-color: var(--card);
        border-radius: var(--border-radius);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        transform: scale(0.9);
        opacity: 0;
        transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
        border: 2px solid var(--border);
    }
    
    .modal-close {
        position: absolute;
        top: 15px;
        right: 15px;
        width: 35px;
        height: 35px;
        border: none;
        background-color: var(--background);
        color: var(--text);
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
        z-index: 1;
    }
    
    .modal-close:hover {
        background-color: var(--primary);
        color: white;
        transform: rotate(90deg);
    }
    
    .achievement-modal-content {
        padding: 40px 30px 30px;
    }
    
    .achievement-modal-header {
        text-align: center;
        margin-bottom: 25px;
    }
    
    .achievement-modal-icon {
        width: 80px;
        height: 80px;
        background: linear-gradient(135deg, var(--primary), var(--accent));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
        box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.3);
    }
    
    .achievement-modal-icon i {
        font-size: 2rem;
        color: white;
    }
    
    .achievement-modal-header h2 {
        font-size: 1.8rem;
        color: var(--text);
        margin: 0;
        font-weight: 700;
    }
    
    .achievement-modal-body p {
        color: var(--accent);
        line-height: 1.6;
        margin-bottom: 25px;
        text-align: center;
    }
    
    .achievement-details {
        display: flex;
        flex-direction: column;
        gap: 15px;
        margin-bottom: 25px;
    }
    
    .detail-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 15px;
        background-color: var(--background);
        border-radius: 8px;
        border: 1px solid var(--border);
    }
    
    .detail-item i {
        color: var(--primary);
        width: 16px;
    }
    
    .detail-item span {
        color: var(--text);
        font-weight: 500;
    }
    
    .achievement-modal-footer {
        text-align: center;
    }
    
    .achievement-card {
        transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        transform: translateY(20px);
        opacity: 0;
        animation-delay: var(--animation-delay, 0s);
    }
    
    .achievement-card.animate-in {
        transform: translateY(0);
        opacity: 1;
        animation: slideInUp 0.6s ease-out forwards;
    }
    
    @keyframes slideInUp {
        from {
            transform: translateY(30px);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }
    
    .achievement-card:hover {
        transform: translateY(-8px) scale(1.02);
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    }
    
    @media (max-width: 768px) {
        .modal-container {
            width: 95%;
            margin: 20px;
        }
        
        .achievement-modal-content {
            padding: 30px 20px 20px;
        }
        
        .achievement-modal-icon {
            width: 60px;
            height: 60px;
        }
        
        .achievement-modal-icon i {
            font-size: 1.5rem;
        }
        
        .achievement-modal-header h2 {
            font-size: 1.5rem;
        }
    }