:root {
    --gradient-start: #b22222;
    --gradient-end: #ff4d4d;
    --card-bg: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.9);
    --accent-color: #fecaca;
    --neutral-100: rgba(255, 255, 255, 0.08);
    --neutral-200: rgba(255, 255, 255, 0.16);
    --neutral-800: rgba(0, 0, 0, 0.4);
    --ring-color: rgba(254, 202, 202, 0.35);
    
    /* New secondary colors for better contrast */
    --bg-secondary: #2E2E2E;
    --bg-light: #F9F9F9;
    --bg-cream: #FEF7F0;
    --text-dark: #2E2E2E;
    --text-gray: #666666;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(0, 0, 0, 0.25);
    --border-light: rgba(255, 255, 255, 0.2);
    --border-dark: rgba(0, 0, 0, 0.1);
}

/* Light Theme Variables */
.light-theme {
    --gradient-start: #dc2626;
    --gradient-end: #ef4444;
    --bg-secondary: #ffffff;
    --bg-light: #f8fafc;
    --bg-cream: #fef3c7;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --border-light: rgba(0, 0, 0, 0.1);
    --border-dark: rgba(0, 0, 0, 0.1);
    --shadow-light: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --shadow-heavy: rgba(0, 0, 0, 0.15);
    --accent-color: #fecaca;
    --neutral-100: rgba(0, 0, 0, 0.05);
    --neutral-200: rgba(0, 0, 0, 0.1);
    --neutral-800: rgba(0, 0, 0, 0.8);
    --ring-color: rgba(220, 38, 38, 0.35);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    padding: 4rem 1rem 2rem;
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Profile Section */
.profile {
    text-align: center;
    margin-bottom: 3rem;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 1.5rem;
    border: 4px solid var(--accent-color);
    object-fit: cover;
    animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px var(--accent-color),
                   0 0 20px var(--accent-color);
    }
    to {
        box-shadow: 0 0 20px var(--accent-color),
                   0 0 30px var(--gradient-start);
    }
}

.profile h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.profile p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
}

/* Profile Actions */
.profile-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.profile-actions .btn-primary,
.profile-actions .btn-secondary {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 2rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.profile-actions .btn-primary {
    background: var(--gradient-start);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.profile-actions .btn-primary:hover {
    background: var(--gradient-end);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-medium);
}

.profile-actions .btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 1px solid var(--border-dark);
}

.profile-actions .btn-secondary:hover {
    background: var(--bg-cream);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Section Styles */
.section {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    backdrop-filter: blur(10px);
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section h2 {
    margin-bottom: 1.25rem;
    font-size: 1.4rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
}

.service-card:hover {
    background: var(--neutral-200);
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 16px 36px var(--neutral-800);
}

.service-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.service-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: var(--gradient-start);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.service-title {
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.service-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.skill-card {
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    transition: transform 0.25s ease, background 0.25s ease;
    position: relative;
}

.skill-card:hover {
    background: var(--neutral-200);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--neutral-800);
}

.skill-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    display: block;
}

.skill-card span {
    display: block;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.skill-level {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.skill-bar.high {
    width: 90%;
    background: linear-gradient(90deg, #10b981, #34d399);
}

.skill-bar.medium {
    width: 70%;
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.skill-bar.low {
    width: 50%;
    background: linear-gradient(90deg, #ef4444, #f87171);
}

/* Certifications Grid */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.cert-card {
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.25rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: transform 0.25s ease, background 0.25s ease;
}

.cert-card:hover {
    background: var(--neutral-200);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--neutral-800);
}

.cert-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
    animation: fadeInUp 0.6s ease-out;
}

.portfolio-item:hover {
    background: var(--neutral-200);
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 16px 36px var(--neutral-800);
}

.portfolio-image-container {
    position: relative;
    overflow: hidden;
}

.portfolio-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.view-details-btn {
    background: var(--accent-color);
    color: var(--gradient-start);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.view-details-btn:hover {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.portfolio-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    line-height: 1.3;
}

.portfolio-year {
    background: var(--accent-color);
    color: var(--gradient-start);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 1rem;
}

.portfolio-summary {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.portfolio-meta {
    margin-bottom: 1rem;
}

.portfolio-role, .portfolio-stack {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.meta-label {
    font-weight: 700;
    color: var(--text-primary);
    margin-right: 0.5rem;
    min-width: 60px;
    font-size: 0.9rem;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.portfolio-tag {
    background: rgba(255, 255, 255, 0.12);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    color: var(--accent-color);
}

.portfolio-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.portfolio-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--neutral-100);
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-link:hover {
    background: var(--neutral-200);
    color: var(--accent-color);
    transform: translateY(-1px);
}

.btn-gallery {
    background: var(--accent-color);
    color: var(--gradient-start);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.btn-gallery:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(254, 202, 202, 0.3);
}

/* Portfolio Header */
.portfolio-header {
    text-align: center;
    margin-bottom: 2rem;
}

.portfolio-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.portfolio-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Search and Filter Section */
.search-filter-section {
    margin-bottom: 3rem;
}

.search-container {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border-radius: 0.75rem;
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--ring-color);
    background: var(--neutral-200);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.filter-btn {
    background: var(--neutral-100);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.25s ease;
    font-weight: 500;
}

.filter-btn:hover {
    background: var(--neutral-200);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--accent-color);
    color: var(--gradient-start);
    border-color: var(--accent-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 1rem;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    transition: background 0.2s ease;
}

.close:hover {
    background: rgba(0, 0, 0, 0.7);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.modal-image-container {
    border-radius: 0.75rem;
    overflow: hidden;
}

.modal-image-container img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.modal-info h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.modal-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.modal-meta span {
    background: var(--neutral-100);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
}

.modal-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.modal-role, .modal-stack {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.modal-role:last-child, .modal-stack:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.modal-role h4, .modal-stack h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 700;
}

.modal-role p, .modal-stack p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.modal-highlights h4 {
    color: var(--accent-color);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.modal-highlights ul {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.modal-highlights li {
    margin-bottom: 0.5rem;
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.modal-tag {
    background: rgba(255, 255, 255, 0.12);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    color: var(--accent-color);
}

.modal-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-color);
    color: var(--gradient-start);
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.modal-link:hover {
    transform: translateY(-2px);
}

/* Social Links */
.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.social-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1rem;
    background: var(--neutral-100);
    border-radius: 2rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.25s ease;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.social-button:hover {
    background: var(--neutral-200);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--neutral-800);
}

.social-button i {
    font-size: 1.2rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 3rem;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gallery Modal */
.gallery-wrap {
    display: grid;
    gap: 2rem;
    max-height: 70vh;
    overflow-y: auto;
    padding: 1rem;
}

.gallery-item {
    text-align: center;
}

.gallery-item img {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 0.75rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.gallery-item figcaption {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1), transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.show {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .profile h1 {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .filter-container {
        justify-content: center;
    }
    
    .filter-btn {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .portfolio-title {
        font-size: 2rem;
    }
    
    .social-links {
        grid-template-columns: 1fr;
    }
}

/* Enhanced Navbar with Resume Button and Theme Toggle */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(46, 46, 46, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px var(--shadow-medium);
}

.light-theme .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
    align-items: center;
}

.navbar-nav li:last-child {
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border-light);
}

.navbar-nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.navbar-nav a:hover::after,
.navbar-nav a.active::after {
    width: 100%;
}

.navbar-nav a:hover {
    color: var(--accent-color);
}

/* Resume Button */
.resume-btn {
    background: var(--gradient-start);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.resume-btn:hover {
    background: var(--gradient-end);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--accent-color);
    color: var(--gradient-start);
    transform: scale(1.1);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .navbar-nav {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(46, 46, 46, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
    
    .light-theme .navbar-nav {
        background: rgba(255, 255, 255, 0.95);
    }
    
    .navbar-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .resume-btn {
        margin-top: 1rem;
    }
}

/* Enhanced Section Styles */
.section {
    background: var(--bg-secondary);
    border-radius: 1.5rem;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    margin-bottom: 2.5rem;
    border: 1px solid var(--border-light);
    box-shadow: 0 8px 32px var(--shadow-medium);
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.section h2 {
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* Enhanced Contact Section */
.contact-section {
    background: var(--bg-secondary);
    border-radius: 1.5rem;
    padding: 3rem;
    text-align: center;
    margin-bottom: 2rem;
}

.contact-cta {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    background: var(--bg-light);
    border: 1px solid var(--border-dark);
    padding: 1.5rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 16px var(--shadow-light);
}

.contact-item:hover {
    background: var(--bg-cream);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px var(--shadow-medium);
    border-color: var(--accent-color);
}

.contact-icon {
    font-size: 2rem;
    color: var(--gradient-start);
}

.contact-text {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Enhanced Footer */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border-light);
}

.footer p {
    margin: 0;
    color: var(--text-secondary);
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gradient-start);
    color: var(--text-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: 0 4px 16px var(--shadow-medium);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--gradient-end);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-medium);
}

.scroll-to-top:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Enhanced Project Cards with Fixed Aspect Ratio */
.portfolio-item {
    background: var(--bg-light);
    border: 1px solid var(--border-dark);
    border-radius: 1.25rem;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out;
    box-shadow: 0 4px 16px var(--shadow-light);
    position: relative;
}

.portfolio-item:hover {
    background: var(--bg-cream);
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 24px 48px var(--shadow-medium);
    border-color: var(--accent-color);
}

.portfolio-image-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--bg-secondary);
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    loading: lazy;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.08);
}

/* Enhanced Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 2rem;
}

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

.modal-content {
    background: var(--bg-light);
    border-radius: 1.5rem;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px var(--shadow-heavy);
}

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

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-start);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 10;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--gradient-end);
    transform: scale(1.1);
}

.modal-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--border-dark);
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.modal-subtitle {
    color: var(--text-gray);
    font-size: 1rem;
}

.modal-body {
    padding: 2rem;
}

.modal-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.modal-details {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 1rem;
    color: var(--text-primary);
}

.modal-role, .modal-stack {
    margin-bottom: 1rem;
}

.modal-role h4, .modal-stack h4 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.modal-role span, .modal-stack span {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.modal-highlights {
    background: var(--bg-cream);
    padding: 1.5rem;
    border-radius: 1rem;
    border-left: 4px solid var(--gradient-start);
}

.modal-highlights h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.modal-highlights ul {
    list-style: none;
    padding: 0;
}

.modal-highlights li {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.modal-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gradient-start);
    font-weight: bold;
}

.modal-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Enhanced Gallery Modal */
.gallery-modal .modal-content {
    max-width: 95vw;
    max-height: 95vh;
}

.gallery-wrap {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    padding: 2rem;
    position: relative;
}

.gallery-main {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: 1rem;
    overflow: hidden;
    background: var(--bg-secondary);
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Gallery Navigation */
.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-primary);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    z-index: 10;
}

.gallery-nav:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: translateY(-50%) scale(1.1);
}

.gallery-nav.prev {
    left: 1rem;
}

.gallery-nav.next {
    right: 1rem;
}

/* Gallery Dots */
.gallery-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.gallery-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-dot.active {
    background: var(--gradient-start);
    transform: scale(1.2);
}

.gallery-thumbnails {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.gallery-item {
    cursor: pointer;
    border-radius: 0.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.gallery-item:hover,
.gallery-item.active {
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
}

.gallery-item figcaption {
    padding: 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.8rem;
    text-align: center;
}

/* Enhanced Contact Section */
.contact-section {
    background: var(--bg-secondary);
    border-radius: 1.5rem;
    padding: 3rem;
    text-align: center;
    margin-bottom: 2rem;
}

.contact-cta {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    background: var(--bg-light);
    border: 1px solid var(--border-dark);
    padding: 1.5rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 16px var(--shadow-light);
}

.contact-item:hover {
    background: var(--bg-cream);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px var(--shadow-medium);
    border-color: var(--accent-color);
}

.contact-icon {
    font-size: 2rem;
    color: var(--gradient-start);
}

.contact-text {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .section {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .modal-meta {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .gallery-wrap {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .portfolio-year {
        align-self: flex-start;
        margin-left: 0;
    }
    
    .modal {
        padding: 1rem;
    }
    
    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    .portfolio-title {
        font-size: 2rem;
    }
    
    .filter-container {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* Fallback Message Styles */
.fallback-message {
    text-align: center;
    padding: 3rem;
    background: var(--bg-light);
    border-radius: 1rem;
    border: 2px dashed var(--border-dark);
}

.fallback-message i {
    font-size: 3rem;
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.fallback-message h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.fallback-message p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

/* Enhanced Project Cards with Case Study Button */
.portfolio-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary, .btn-case-study {
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--gradient-start);
    color: var(--text-primary);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.btn-primary:hover {
    background: var(--gradient-end);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-medium);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 1px solid var(--border-dark);
}

.btn-secondary:hover {
    background: var(--bg-cream);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-case-study {
    background: var(--gradient-start);
    color: var(--text-primary);
    font-weight: 700;
}

.btn-case-study:hover {
    background: var(--gradient-end);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--shadow-medium);
}

/* Accessibility Improvements */
.btn-primary:focus,
.btn-secondary:focus,
.btn-case-study:focus,
.theme-toggle:focus,
.mobile-menu-btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.navbar-nav a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
    border-radius: 4px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Enhanced Skills Section with Donut Charts */
.skills-section {
    background: var(--bg-light);
}

.skills-section h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.skills-group {
    margin-bottom: 2rem;
}

.skills-group h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gradient-start);
    margin-bottom: 1rem;
    text-align: center;
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    display: inline-block;
    margin-left: 50%;
    transform: translateX(-50%);
    border: 1px solid var(--gradient-start);
    transition: all 0.3s ease;
}

.skills-group h3:hover {
    background: var(--gradient-start);
    color: var(--text-primary);
    transform: translateX(-50%) scale(1.05);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.skill-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-dark);
    padding: 1.5rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: 0 4px 16px var(--shadow-light);
}

.skill-card:hover {
    background: var(--bg-cream);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px var(--shadow-medium);
    border-color: var(--accent-color);
}

.skill-icon {
    font-size: 2rem;
    color: var(--gradient-start);
    margin-bottom: 1rem;
}

.skill-card span {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gradient-start);
    font-size: 1rem;
    display: block;
}

/* Donut Chart Styles */
.skill-progress {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto;
}

.skill-progress svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.skill-progress circle {
    fill: none;
    stroke-width: 10;
    stroke-linecap: round;
}

.skill-progress .bg {
    stroke: var(--border-light);
}

.skill-progress .progress {
    stroke: var(--gradient-start);
    stroke-dasharray: 314;
    transition: stroke-dashoffset 0.8s ease;
}

.skill-progress .progress.high {
    stroke-dashoffset: 47.1; /* 85% */
}

.skill-progress .progress.medium {
    stroke-dashoffset: 157; /* 50% */
}

.skill-progress .progress.low {
    stroke-dashoffset: 235.5; /* 25% */
}

.skill-percentage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.skill-percentage .percentage {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--gradient-start);
}

.skill-percentage .label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}