.portfolio-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow-y: auto;
}

.portfolio-modal.show {
    display: block;
}

.portfolio-modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 30px;
    width: 90%;
    max-width: 1200px;
    position: relative;
    border-radius: 8px;
}

.modal-close {
    position: absolute;
    right: 25px;
    top: 25px;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    color: #666;
    transition: color 0.3s;
}

.modal-close:hover {
    color: #000;
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 20px;
}

.modal-image-section img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.modal-kpis {
    margin-top: 20px;
    background-color: #f4f6f8;
    border: 1px solid #e6e9ee;
    padding: 20px;
    border-radius: 8px;
}

.modal-kpis h3, 
.modal-technologies h3,
.modal-features h3,
.modal-achievements h3 {
    margin-bottom: 15px;
    color: #333;
    font-size: 1.2rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.kpi-item {
    text-align: left;
    padding: 14px;
    background-color: #ffffff;
    border-radius: 6px;
    border: 1px solid #e2e6ea;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}

.kpi-value {
    font-size: 22px;
    font-weight: bold;
    color: #0f3d8a;
    margin-bottom: 6px;
}

.kpi-label {
    color: #5f6b75;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.modal-technologies {
    margin-top: 20px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag {
    background-color: #e9ecef;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 14px;
    color: #495057;
}

.modal-content-section h2 {
    color: #333;
    margin-bottom: 20px;
}

.modal-link {
    display: inline-block;
    margin-bottom: 18px;
    padding: 8px 14px;
    background-color: #0d9488;
    color: #ffffff;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

.modal-link:hover {
    background-color: #0b7d73;
    color: #ffffff;
}

.modal-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
}

.modal-description ul {
    padding-left: 20px;
    margin: 15px 0;
}

.modal-description li {
    margin-bottom: 10px;
}

.modal-features,
.modal-achievements {
    margin-top: 30px;
}

.modal-features ul,
.modal-achievements ul {
    list-style-type: none;
    padding: 0;
}

.modal-features li,
.modal-achievements li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.modal-features li:before,
.modal-achievements li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-modal-content {
        margin: 0;
        width: 100%;
        min-height: 100vh;
        border-radius: 0;
        padding: 20px;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
}