/* Hero Section */
.projects-hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    margin-top: 8rem;
}

.projects-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(151, 19, 19, 0.15) 0%, transparent 50%);
    z-index: -1;
}

.header-dark {
    background: transparent;
    backdrop-filter: blur(0);
}

.back-to-portfolio {
    position: absolute;
    top: 5rem;
    left: 5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.7rem;
    color: var(--text-color);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-base);
    z-index: 10;
}

.back-to-portfolio:hover {
    color: var(--primary-color);
    transform: translateX(-2px);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 3.6rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 1.4rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.code-illustration {
    position: relative;
    width: 300px;
    height: 300px;
    background: var(--card-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.code-line {
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, 
        var(--primary-color) 0%, 
        transparent 50%, 
        transparent 100%);
    margin-bottom: 12px;
    border-radius: var(--radius-sm);
    animation: codeGlow 2s ease-in-out infinite;
}

.code-line:nth-child(1) {
    width: 80%;
    animation-delay: 0s;
}

.code-line:nth-child(2) {
    width: 60%;
    animation-delay: 0.2s;
}

.code-line:nth-child(3) {
    width: 90%;
    animation-delay: 0.4s;
}

.code-line:nth-child(4) {
    width: 70%;
    animation-delay: 0.6s;
}

@keyframes codeGlow {
    0%, 100% {
        background: linear-gradient(90deg, 
            var(--primary-color) 0%, 
            transparent 50%, 
            transparent 100%);
    }
    50% {
        background: linear-gradient(90deg, 
            var(--primary-color) 0%, 
            var(--primary-light) 50%, 
            transparent 100%);
    }
}

.floating-element {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--glow-primary);
}

/* Filter Section */
.projects-filter-section {
    margin-top: var(--spacing-xl);
}

.filter-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.filter-group h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.filter-tag {
    padding: 0.8rem 1.6rem;
    background: var(--card-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-color);
    font-size: 1.4rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-tag {
    padding: 0.6rem 1.2rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.tech-tag.active,
.tech-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: transparent;
}

.search-box {
    position: relative;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.6rem;
}

.search-box input {
    width: 100%;
    padding: 1.5rem 1.5rem 1.5rem 4.5rem;
    background: var(--card-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-color);
    font-size: 1.5rem;
    transition: all var(--transition-base);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--shadow-color);
}

/* Projects Grid Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.header-left .title {
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.6rem;
}

.sort-dropdown {
    position: relative;
}

.sort-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.5rem;
    background: var(--card-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-color);
    font-size: 1.4rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.sort-btn:hover {
    border-color: var(--primary-color);
}

.sort-dropdown-content {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.sort-dropdown:hover .sort-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sort-dropdown-content a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-color);
    font-size: 1.4rem;
    transition: all var(--transition-fast);
}

.sort-dropdown-content a:hover {
    background: var(--card-color);
    color: var(--primary-color);
}

/* Projects Grid */
.projects-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.project-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 0.4rem 1.2rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    z-index: 2;
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-md);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.project-date {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.project-category {
    padding: 0.3rem 1rem;
    background: var(--surface-color);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    font-weight: 500;
}

.project-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.project-description {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.project-tech span {
    padding: 0.3rem 0.8rem;
    background: var(--surface-color);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    font-weight: 500;
}

.project-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.project-stats .stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    color: var(--text-secondary);
}

.project-stats .stat i {
    color: var(--primary-color);
}

.project-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.project-actions .btn {
    flex: 1;
    padding: 0.8rem 1.5rem;
    font-size: 1.3rem;
}

/* Load More */
.load-more-container {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
}

/* Featured Project */
.featured-project {
    position: relative;
    margin-top: var(--spacing-xl);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.8rem 2rem;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.featured-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.featured-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-stack .tech {
    padding: 0.6rem 1.2rem;
    background: var(--surface-color);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 1.3rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.featured-preview {
    position: relative;
}

.preview-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

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

.preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.preview-container:hover .preview-overlay {
    opacity: 1;
}

.preview-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.4rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.preview-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* Timeline Section */
.timeline-section {
    margin-top: var(--spacing-xl);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-xl) auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    width: 45%;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 55%;
}

.timeline-dot {
    position: absolute;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--surface-color);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -12px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -12px;
}

.timeline-content {
    background: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.timeline-date {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-content h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .featured-content {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-dot {
        left: -12px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .projects-grid-container {
        grid-template-columns: 1fr;
    }
    
    .filter-tags,
    .tech-tags {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .timeline-content {
        padding: var(--spacing-sm);
    }
}