.portfolio {
    background-color: var(--background-color-light);
    transition: background-color 0.4s ease;
    padding: 6rem 5%;
}

html.dark-mode .portfolio {
    background-color: var(--background-color-dark);
}

.portfolio-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.portfolio-header {
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.portfolio-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--h2-color-light);
}

html.dark-mode .portfolio-header h2 {
    color: var(--h2-color-dark);
}

.portfolio-header p {
    font-size: 1.2rem;
    color: var(--text-color-light);
    opacity: 0.9;
}

html.dark-mode .portfolio-header p {
    color: var(--text-color-dark);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    justify-content: center;
}

@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.portfolio-card {
    background: var(--card-bg-light);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    text-align: left;
    display: flex;
    flex-direction: column;
}

html.dark-mode .portfolio-card {
    background: var(--card-bg-dark);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

html.dark-mode .portfolio-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.portfolio-img-wrapper {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-img {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: rgba(136, 136, 136, 0.1);
    /* Primary color with opacity */
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.portfolio-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--h2-color-light);
}

html.dark-mode .portfolio-title {
    color: var(--h2-color-dark);
}

.portfolio-desc {
    font-size: 1rem;
    color: var(--text-color-light);
    opacity: 0.8;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

html.dark-mode .portfolio-desc {
    color: var(--text-color-dark);
}

.portfolio-link {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.portfolio-link:hover {
    color: var(--primary-color-hover);
}

.portfolio-link svg {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.portfolio-link:hover svg {
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-card {
        max-width: 450px;
        margin: 0 auto;
    }
}

/* Preview Modal Styles */
.preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.preview-modal.show {
    opacity: 1;
    visibility: visible;
}

.preview-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.preview-modal-content {
    position: relative;
    width: 90%;
    height: 90%;
    max-width: 1400px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 2001;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.preview-modal.show .preview-modal-content {
    transform: scale(1);
}

.preview-modal-header {
    height: 50px;
    background: #f1f1f1;
    border-bottom: 1px solid #ddd;
    display: flex;
    align-items: center;
    padding: 0 1rem;
    justify-content: space-between;
}

.preview-controls {
    display: flex;
    gap: 8px;
}

.preview-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.preview-dot.red {
    background: #ff5f56;
}

.preview-dot.yellow {
    background: #ffbd2e;
}

.preview-dot.green {
    background: #27c93f;
}

.preview-address-bar {
    flex-grow: 1;
    margin: 0 2rem;
    background: #fff;
    border-radius: 4px;
    padding: 4px 12px;
    font-size: 0.9rem;
    color: #555;
    text-align: center;
    border: 1px solid #ddd;
}

.preview-close {
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    color: #555;
    padding: 0 0.5rem;
}

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

.preview-iframe-container {
    flex-grow: 1;
    background: #fff;
    position: relative;
}

#preview-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Dark Mode for Modal */
html.dark-mode .preview-modal-content {
    background: #1a1a1a;
}

html.dark-mode .preview-modal-header {
    background: #2a2a2a;
    border-bottom-color: #333;
}

html.dark-mode .preview-address-bar {
    background: #1a1a1a;
    border-color: #333;
    color: #aaa;
}

html.dark-mode .preview-close {
    color: #aaa;
}

html.dark-mode .preview-close:hover {
    color: #fff;
}