/* ====================================
   PORTFOLIO PAGE SPECIFIC STYLES
   ==================================== */

/* Portfolio Hero Section */
.portfolio-hero {
    padding: calc(var(--space-20) + 60px) 0 var(--space-16);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23e5e7eb" stroke-width="1" opacity="0.3"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
    z-index: -1;
}

.portfolio-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary-dark);
}

.breadcrumb-separator {
    color: var(--gray-400);
    font-size: var(--text-xs);
}

.breadcrumb-current {
    color: var(--gray-700);
    font-weight: var(--font-medium);
}

/* Portfolio Hero Title */
.portfolio-hero-title {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--gray-900);
}

.portfolio-hero-title .highlight {
    color: var(--primary-color);
    position: relative;
}

.portfolio-hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-full);
    animation: slideIn 1s ease-out 0.5s both;
}

.portfolio-hero-description {
    font-size: var(--text-lg);
    color: var(--gray-600);
    margin-bottom: var(--space-12);
    line-height: 1.7;
}

.portfolio-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    max-width: 600px;
    margin: 0 auto;
}

/* ====================================
   PORTFOLIO FILTERS SECTION
   ==================================== */
.portfolio-filters-section {
    padding: var(--space-12) 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 70px;
    z-index: var(--z-sticky);
}

.portfolio-controls {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    align-items: start;
}

/* Filter Controls */
.filter-controls {
    display: flex;
    justify-content: center;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background-color: var(--white);
    color: var(--gray-600);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-full);
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.filter-btn i {
    font-size: var(--text-sm);
}

/* Search Controls */
.search-controls {
    display: flex;
    justify-content: center;
}

.search-box {
    position: relative;
    max-width: 300px;
    width: 100%;
}

.search-box input {
    width: 100%;
    padding: var(--space-3) var(--space-12) var(--space-3) var(--space-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-full);
    font-size: var(--text-base);
    transition: all var(--transition-normal);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-btn {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.search-btn:hover {
    background-color: var(--primary-dark);
}

/* View Controls */
.view-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.sort-controls select {
    padding: var(--space-2) var(--space-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: var(--text-sm);
    background-color: var(--white);
    cursor: pointer;
}

.view-toggle {
    display: flex;
    gap: var(--space-1);
    background-color: var(--gray-100);
    border-radius: var(--border-radius);
    padding: var(--space-1);
}

.view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: transparent;
    color: var(--gray-600);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.view-btn.active,
.view-btn:hover {
    background-color: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* ====================================
   PORTFOLIO GRID SECTION
   ==================================== */
.portfolio-grid-section {
    padding: var(--space-16) 0;
    background-color: var(--gray-50);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

.portfolio-grid.grid-view {
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
}

.portfolio-grid.list-view {
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    color: var(--gray-500);
    grid-column: 1 / -1;
}

.loading-spinner i {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

/* Portfolio Item Styles */
.portfolio-item {
    background-color: var(--white);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition-normal);
    opacity: 1;
    transform: scale(1);
}

.portfolio-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(16, 185, 129, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-info {
    text-align: center;
    color: var(--white);
    padding: var(--space-6);
}

.portfolio-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
    color: var(--white);
}

.portfolio-category {
    font-size: var(--text-sm);
    opacity: 0.9;
    margin-bottom: var(--space-6);
}

.portfolio-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
}

.btn-view,
.btn-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    cursor: pointer;
    text-decoration: none;
}

.btn-view:hover,
.btn-link:hover {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
    transform: scale(1.1);
}

/* List View Styles */
.portfolio-grid.list-view .portfolio-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-6);
    align-items: center;
    padding: var(--space-6);
}

.portfolio-grid.list-view .portfolio-image {
    margin: 0;
    aspect-ratio: 4/3;
}

.portfolio-grid.list-view .portfolio-content {
    padding: 0;
}

.portfolio-grid.list-view .portfolio-title {
    color: var(--gray-900);
    text-align: left;
    margin-bottom: var(--space-3);
}

.portfolio-grid.list-view .portfolio-category {
    color: var(--primary-color);
    font-weight: var(--font-medium);
    text-align: left;
    margin-bottom: var(--space-4);
}

.portfolio-grid.list-view .portfolio-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-6);
    text-align: left;
}

.portfolio-grid.list-view .portfolio-buttons {
    justify-content: flex-start;
}

.portfolio-grid.list-view .portfolio-overlay {
    display: none;
}

/* ====================================
   PAGINATION
   ==================================== */
.pagination-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background-color: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: var(--space-2);
}

.pagination-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.pagination-number:hover,
.pagination-number.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination-ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--gray-500);
    font-weight: var(--font-medium);
    cursor: default;
}

.pagination-info {
    color: var(--gray-600);
    font-size: var(--text-sm);
}

/* ====================================
   PORTFOLIO CTA SECTION
   ==================================== */
.portfolio-cta {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    color: var(--white);
}

.cta-description {
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
    opacity: 0.9;
    line-height: 1.7;
    color: #FFF;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
}

.cta-buttons .btn {
    min-width: 200px;
}

.cta-buttons .btn-primary {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.cta-buttons .btn-primary:hover {
    background-color: var(--gray-100);
    color: var(--primary-dark);
}

.cta-buttons .btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.cta-buttons .btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

/* ====================================
   PROJECT MODAL
   ==================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: var(--white);
    border-radius: var(--border-radius-xl);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--gray-900);
    margin: 0;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--gray-100);
    color: var(--gray-600);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.modal-close:hover {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.modal-body {
    padding: var(--space-6);
}

.modal-image {
    margin-bottom: var(--space-6);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.modal-image img {
    width: 100%;
    height: auto;
    display: block;
}

.modal-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.modal-category {
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--border-radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.modal-date {
    color: var(--gray-600);
    font-size: var(--text-sm);
}

.modal-description {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--space-8);
}

.modal-technologies h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
    color: var(--gray-900);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
}

.tech-tag {
    background-color: var(--gray-100);
    color: var(--gray-700);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--border-radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.modal-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ====================================
   RESPONSIVE DESIGN
   ==================================== */
@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

@media (min-width: 768px) {
    .portfolio-controls {
        grid-template-columns: 1fr auto auto;
        gap: var(--space-8);
    }
    
    .filter-buttons {
        justify-content: flex-start;
    }
}

@media (min-width: 1024px) {
    .portfolio-hero-title {
        font-size: var(--text-6xl);
    }
    
    .portfolio-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .portfolio-grid.list-view .portfolio-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .portfolio-grid.list-view .portfolio-title,
    .portfolio-grid.list-view .portfolio-category,
    .portfolio-grid.list-view .portfolio-description {
        text-align: center;
    }
    
    .portfolio-grid.list-view .portfolio-buttons {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .portfolio-hero-title {
        font-size: var(--text-4xl);
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-btn {
        justify-content: center;
    }
    
    .modal-content {
        width: 95%;
        margin: var(--space-4);
    }
    
    .modal-actions {
        flex-direction: column;
    }
}

/* ====================================
   ANIMATIONS
   ==================================== */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes slideIn {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}