/* ===== Portfolio Page Styles ===== */

.portfolio-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-color), transparent);
    opacity: 0.1;
    top: -250px;
    right: -250px;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.portfolio-hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #7c3aed, transparent);
    opacity: 0.08;
    bottom: -150px;
    left: -150px;
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(120deg); }
    66% { transform: translateY(10px) rotate(240deg); }
}

.portfolio-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.portfolio-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.portfolio-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Filter Buttons ===== */
.portfolio-section {
    padding: var(--spacing-3xl) 0;
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.2), transparent);
    transition: left 0.6s ease;
}

.filter-btn:hover::before {
    left: 100%;
}

.filter-btn:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-color: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.filter-btn.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
    animation: activeGlow 2s ease-in-out infinite alternate;
}

@keyframes activeGlow {
    0% { opacity: 0.3; }
    100% { opacity: 0.8; }
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

/* Staggered animation delays for portfolio items */
.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }
.portfolio-item:nth-child(7) { animation-delay: 0.7s; }
.portfolio-item:nth-child(8) { animation-delay: 0.8s; }
.portfolio-item:nth-child(9) { animation-delay: 0.9s; }
.portfolio-item:nth-child(10) { animation-delay: 1.0s; }
.portfolio-item:nth-child(11) { animation-delay: 1.1s; }
.portfolio-item:nth-child(12) { animation-delay: 1.2s; }
.portfolio-item:nth-child(13) { animation-delay: 1.3s; }
.portfolio-item:nth-child(14) { animation-delay: 1.4s; }
.portfolio-item:nth-child(15) { animation-delay: 1.5s; }
.portfolio-item:nth-child(16) { animation-delay: 1.6s; }
.portfolio-item:nth-child(17) { animation-delay: 1.7s; }

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--bg-tertiary);
    height: 400px;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-style: preserve-3d;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-item:hover {
    transform: translateY(-15px) rotateY(5deg) rotateX(5deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2),
                0 0 50px rgba(99, 102, 241, 0.15);
}

.portfolio-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    opacity: 0;
    transition: all 0.6s ease;
    z-index: 1;
    pointer-events: none;
}

.portfolio-item:hover::before {
    opacity: 1;
    transform: translateX(100%);
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.portfolio-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.2) 0%,
        transparent 50%,
        rgba(139, 69, 19, 0.2) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}

.portfolio-item:hover .portfolio-image::after {
    opacity: 1;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: brightness(1) contrast(1) saturate(1);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.15) rotate(2deg);
    filter: brightness(1.1) contrast(1.1) saturate(1.2);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.1) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.9) 100%
    );
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-2xl);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 3;
    backdrop-filter: blur(2px);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    backdrop-filter: blur(5px);
}

.portfolio-overlay h3 {
    color: white;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    transform: translateY(30px) scale(0.9);
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    opacity: 0;
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    transform: translateY(30px) scale(0.9);
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s;
    opacity: 0;
    line-height: 1.6;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    color: white;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-color), #7c3aed);
    border-radius: var(--radius-full);
    width: fit-content;
    transform: translateY(30px) scale(0.9);
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s;
    opacity: 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.portfolio-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.portfolio-link:hover::before {
    left: 100%;
}

.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay p,
.portfolio-item:hover .portfolio-link {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.portfolio-link:hover {
    background: linear-gradient(135deg, #7c3aed, var(--accent-color));
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.portfolio-link:active {
    transform: translateY(0) scale(0.98);
}

/* ===== Stats Section ===== */
.stats-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(139, 69, 19, 0.1) 0%, transparent 50%);
    opacity: 0.5;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.stat-card {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 69, 19, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15),
                0 0 30px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.stat-value {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    transition: all 0.4s ease;
    background: linear-gradient(135deg, var(--accent-color), #7c3aed);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.stat-card:hover .stat-value {
    transform: scale(1.1);
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.stat-label {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    transition: color 0.4s ease;
    font-weight: 500;
}

.stat-card:hover .stat-label {
    color: var(--text-primary);
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    opacity: 0;
    transition: all 0.8s ease;
    animation: rotate 8s linear infinite;
}

.stat-card:hover::after {
    opacity: 1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== Enhanced Animation Classes ===== */
.portfolio-item.fade-up {
    opacity: 0;
    transform: translateY(60px) scale(0.95);
    animation: fadeUpScale 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes fadeUpScale {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.filter-btn.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    animation: staggerIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.filter-btn:nth-child(1) { animation-delay: 0.1s; }
.filter-btn:nth-child(2) { animation-delay: 0.2s; }
.filter-btn:nth-child(3) { animation-delay: 0.3s; }
.filter-btn:nth-child(4) { animation-delay: 0.4s; }
.filter-btn:nth-child(5) { animation-delay: 0.5s; }

@keyframes staggerIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Magnetic Effect ===== */
.portfolio-item {
    will-change: transform;
}

.portfolio-item:before {
    will-change: opacity, transform;
}

.portfolio-image img {
    will-change: transform, filter;
}

/* ===== Cursor Trail Effect ===== */
.portfolio-grid {
    position: relative;
}

.portfolio-grid::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.6), transparent);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

/* ===== Particle Effects ===== */
.portfolio-hero {
    position: relative;
}

.portfolio-hero .particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.portfolio-hero .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(99, 102, 241, 0.6);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
}

.portfolio-hero .particle:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.portfolio-hero .particle:nth-child(2) {
    top: 60%;
    left: 20%;
    animation-delay: 2s;
}

.portfolio-hero .particle:nth-child(3) {
    top: 40%;
    left: 80%;
    animation-delay: 4s;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
        opacity: 0;
    }
    25% {
        opacity: 1;
    }
    50% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.8;
    }
    75% {
        opacity: 0.4;
    }
}

/* ===== Professional Portfolio Document Styles ===== */
.portfolio-category {
    margin-bottom: var(--spacing-4xl);
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--border-color);
}

.portfolio-category:last-child {
    border-bottom: none;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

/* Project Cards */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

.project-card:hover::before {
    opacity: 1;
}

.project-header {
    margin-bottom: var(--spacing-lg);
}

.project-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.project-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.project-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.project-content p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.project-services h4 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.project-services ul {
    list-style: none;
    padding: 0;
}

.project-services li {
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    position: relative;
    padding-left: var(--spacing-lg);
}

.project-services li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Portfolio Table */
.portfolio-table {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.table-row:last-child {
    border-bottom: none;
}

.table-row:not(.table-header):hover {
    background: rgba(99, 102, 241, 0.05);
}

.table-header {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.table-header .table-cell {
    font-size: var(--font-size-lg);
}

.table-cell {
    color: var(--text-secondary);
    line-height: 1.5;
}

.table-cell strong {
    color: var(--text-primary);
    font-weight: 600;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.table-cell small {
    color: var(--accent-color);
    font-size: var(--font-size-sm);
}

/* Campaign Showcase */
.campaign-showcase {
    margin-top: var(--spacing-2xl);
}

.campaign-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.campaign-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.campaign-header {
    margin-bottom: var(--spacing-xl);
}

.campaign-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.campaign-tag {
    display: inline-block;
    background: rgba(139, 69, 19, 0.1);
    color: #8b4513;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.campaign-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.campaign-content p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.services-delivered h4 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.service-item {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-color);
}

.service-item h5 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.service-category {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.service-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

.service-category:hover::before {
    opacity: 1;
}

.service-category h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    color: var(--text-secondary);
    padding: var(--spacing-sm) 0;
    position: relative;
    padding-left: var(--spacing-lg);
    transition: color 0.3s ease;
}

.service-list li::before {
    content: '✦';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: var(--font-size-sm);
}

.service-list li:hover {
    color: var(--text-primary);
}

/* Stagger Animation for New Elements */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    animation: staggerFadeUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes staggerFadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger delays for different sections */
.project-card.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.project-card.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.project-card.stagger-item:nth-child(3) { animation-delay: 0.3s; }

.table-row.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.table-row.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.table-row.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.table-row.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.table-row.stagger-item:nth-child(6) { animation-delay: 0.3s; }
.table-row.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.table-row.stagger-item:nth-child(8) { animation-delay: 0.4s; }
.table-row.stagger-item:nth-child(9) { animation-delay: 0.45s; }

.service-category.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.service-category.stagger-item:nth-child(2) { animation-delay: 0.2s; }

.campaign-card.stagger-item { animation-delay: 0.2s; }

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .portfolio-hero {
        padding: 100px 0 40px;
    }
    
    .portfolio-title {
        font-size: 2rem;
    }
    
    .filter-container {
        gap: var(--spacing-sm);
    }
    
    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .portfolio-item {
        height: 300px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Responsive Portfolio Document Styles */
    .project-grid {
        grid-template-columns: 1fr;
    }

    .table-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .table-cell {
        padding: var(--spacing-sm) 0;
    }

    .table-cell strong {
        margin-bottom: var(--spacing-xs);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-item {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .portfolio-overlay {
        padding: var(--spacing-lg);
    }
    
    .portfolio-overlay h3 {
        font-size: var(--font-size-xl);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }

    /* Responsive Portfolio Document Styles */
    .portfolio-category {
        padding: var(--spacing-lg) 0;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .project-card,
    .campaign-card,
    .service-category {
        padding: var(--spacing-lg);
    }

    .table-row {
        padding: var(--spacing-md);
    }

    .service-item {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .service-item h5 {
        font-size: var(--font-size-md);
    }
}