:root {
    --primary: #8b5cf6;
    --secondary: #f59e0b;
    --accent: #10b981;
    --dark: #0f0f1b;
    --darker: #0a0a12;
    --light: #f5f5f7;
    --gray: #1e1e2e;
    --light-gray: #2a2a3a;
    --transition: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--darker);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}
#particles-js {
  position: fixed;  
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;      
  background-color: #0a0a0a; 
  pointer-events: none;      
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* Geometric Background Shapes */
.bg-shape {
    position: fixed;
    z-index: -1;
    opacity: 0.05;
    pointer-events: none;
}

.shape-1 {
    top: 10%;
    left: 5%;
    width: 200px;
    height: 200px;
    background: var(--primary);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    top: 60%;
    right: 10%;
    width: 150px;
    height: 150px;
    background: var(--secondary);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: float 8s ease-in-out infinite reverse;
}

.shape-3 {
    bottom: 20%;
    left: 15%;
    width: 100px;
    height: 100px;
    background: var(--accent);
    border-radius: 50%;
    animation: float 5s ease-in-out infinite;
}

.shape-4 {
    top: 30%;
    right: 20%;
    width: 120px;
    height: 120px;
    background: var(--primary);
    border-radius: 40% 60% 60% 40% / 40% 40% 60% 60%;
    animation: float 7s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Section Borders */
.section-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--primary));
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
}

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

.nav-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.footer-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #a27bfcff;
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 10px 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    background: linear-gradient(to right, #ffffff, var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: #ffffff; 
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 0.9rem;
}

.nav-links a:hover {
    color: var(--secondary); 
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: #ffffff; 
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding-top: 150px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 15px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-text h2 {
    font-size: 1.3rem;
    font-weight: 400;
    color: #a0a0c0;
    margin-bottom: 25px;
}

.hero-text p {
    font-size: 1.1rem;
    color: #b0b0d0;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin: 30px 0;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat p {
    font-size: 0.9rem;
    color: #a0a0c0;
    margin: 0;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

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

.btn.primary:hover {
    background: #7c3aed;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.4);
}

.btn.secondary {
    background: transparent;
    color: var(--light);
    border: 2px solid var(--light-gray);
}

.btn.secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* Code Terminal */
.code-terminal {
    background: var(--dark);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--light-gray);
}

.terminal-header {
    background: var(--gray);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--light-gray);
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

.terminal-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f57;
}

.terminal-buttons span:nth-child(2) {
    background: #ffbd2e;
}

.terminal-buttons span:nth-child(3) {
    background: #28ca42;
}

.terminal-body {
    padding: 25px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
}

.code-line {
    margin-bottom: 8px;
    color: #e0e0e0;
}

.prompt {
    color: var(--primary);
    font-weight: 600;
}

.output {
    color: var(--accent);
}

.cursor {
    animation: blink 1s infinite;
    color: var(--primary);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* About Section */
.about {
    padding-top: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: #b0b0d0;
    margin-bottom: 25px;
    line-height: 1.6;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--gray);
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.highlight i {
    color: var(--primary);
    font-size: 1.2rem;
}

.highlight span {
    font-weight: 500;
}

.about-image .image-container {
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
    background: var(--gray);
    border: 1px solid var(--light-gray);
}

/* Skills Section - UPDATED (Full width rows) */
.skills {
    padding-top: 80px;
    padding-bottom: 80px;
    position: relative;
}

.skills-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.skill-category {
    background: linear-gradient(135deg, rgba(30, 30, 46, 0.95), rgba(20, 20, 35, 0.95));
    backdrop-filter: blur(10px);
    padding: 25px 30px;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.skill-category:hover::before {
    transform: scaleX(1);
}

.skill-category:hover {
    transform: translateY(-3px);
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3), 0 0 20px rgba(139, 92, 246, 0.1);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    color: var(--light);
    font-size: 1.3rem;
    font-weight: 600;
    position: relative;
}

.skill-category h3 i {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(139, 92, 246, 0.08));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding-left: 52px;
}

.skill-tag {
    background: rgba(139, 92, 246, 0.1);
    color: #c4b5fd;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(139, 92, 246, 0.25);
    transition: all 0.25s ease;
    cursor: default;
    letter-spacing: 0.3px;
}

.skill-tag:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-color: transparent;
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 5px 15px rgba(139, 92, 246, 0.35);
}

/* Projects Section */
.projects {
    padding-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--gray);
    border-radius: 12px;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    display: block !important; 
    z-index: 2;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    display: block !important; 
    z-index: 2;
}

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

.project-image .image-placeholder {
    height: 100%;
    border-radius: 12px 12px 0 0;
    z-index: 1; 
    opacity: 0; 
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 27, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 5;
}

.project-card:hover .project-overlay {
    opacity: 1;
    visibility: visible;
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-links a {
    width: 45px;
    height: 45px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    z-index: 10;
}

.project-links a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.project-content {
    padding: 25px;
}

.project-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.project-icon {
    width: 50px;
    height: 50px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
}

.project-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--light);
}

.project-card p {
    color: #b0b0d0;
    margin-bottom: 20px;
    line-height: 1.5;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    background: rgba(245, 158, 11, 0.1);
    color: var(--secondary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Experience Section */
.experience {
    padding-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--light-gray);
}

.timeline-item {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}

.timeline-marker {
    width: 60px;
    height: 60px;
    background: var(--gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary);
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    color: var(--primary);
    font-size: 1.2rem;
}

.timeline-content {
    flex: 1;
    background: var(--gray);
    padding: 25px;
    border-radius: 12px;
    margin-left: 30px;
    border: 1px solid var(--light-gray);
}

.timeline-date {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.timeline-content h4 {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 15px;
    font-size: 1rem;
}

.timeline-content p {
    color: #b0b0d0;
    margin-bottom: 15px;
    line-height: 1.5;
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tech span {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* View Details Button */
.btn-view-details {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
}

.btn-view-details:hover {
    background: rgba(139, 92, 246, 0.2);
    transform: translateY(-2px);
}

/* Details Sections */
.details-section {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 2000;
    overflow-y: auto;
}

.details-content {
    background: var(--dark);
    margin: 5% auto;
    padding: 0;
    width: 90%;
    max-width: 900px;
    border-radius: 15px;
    border: 1px solid var(--light-gray);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--light-gray);
    background: var(--gray);
    border-radius: 15px 15px 0 0;
}

.details-header h2 {
    margin: 0;
    color: var(--light);
    font-size: 1.5rem;
}

.close-details {
    color: #a0a0c0;
    font-size: 1.8rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    background: none;
    border: none;
}

.close-details:hover {
    color: var(--secondary);
}

.details-body {
    padding: 30px;
}

/* Research Papers */
.research-papers {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.paper-card {
    background: var(--gray);
    border-radius: 12px;
    border: 1px solid var(--light-gray);
    overflow: hidden;
}

.paper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    background: rgba(139, 92, 246, 0.05);
    border-bottom: 1px solid var(--light-gray);
}

.paper-header h3 {
    margin: 0;
    color: var(--light);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.paper-status {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.paper-content {
    padding: 25px;
}

.paper-content p {
    color: #b0b0d0;
    margin-bottom: 20px;
    line-height: 1.6;
}

.paper-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.paper-tech span {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.paper-features h4 {
    color: var(--light);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.paper-features ul {
    color: #b0b0d0;
    padding-left: 20px;
}

.paper-features li {
    margin-bottom: 8px;
    line-height: 1.5;
}

/* Simple Paper Image Styles */
.paper-image {
    height: auto;
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--light-gray);
    margin: 1px 5px;
    display: block;
}

.paper-image-container {
    margin: 5px 0;
    text-align: center;
}

.paper-image-caption {
    color: #b0b0d0;
    font-size: 0.9rem;
    margin-top: 4px;
    font-style: italic;
}

/* Education Section */
.education {
    padding-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.education-card {
    background: var(--gray);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    text-align: center;
}

.education-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.education-icon {
    width: 70px;
    height: 70px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary);
    font-size: 1.5rem;
}

.education-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--light);
}

.education-card h4 {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 1rem;
}

.education-card p {
    color: #b0b0d0;
    margin-bottom: 5px;
}

.grade {
    font-weight: 600;
    color: var(--secondary);
}

/* Certifications Section */
.certifications {
    padding-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.certification-card {
    background: var(--gray);
    border-radius: 12px;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.certification-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    transition: var(--transition);
}

.certification-card:hover::before {
    width: 6px;
}

.certification-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.cert-image {
    position: relative;
    height: 150px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    z-index: 1;
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    display: block !important; 
}

.cert-image .image-placeholder {
    height: 100%;
    border-radius: 12px 12px 0 0;
    z-index: 2;
    opacity: 0;
}

.cert-content {
    padding: 25px;
}

.certification-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--light);
    line-height: 1.4;
}

.certification-card p {
    color: #b0b0d0;
    margin-bottom: 15px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.cert-date {
    background: rgba(139, 92, 246, 0.1);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

/* Quote Section */
.quote {
    background: var(--darker);
    text-align: center;
}

.quote-content {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.quote-content i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
    opacity: 0.3;
}

.quote-text {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.quote-author {
    color: var(--accent);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    padding-top: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.contact-content {
    display: flex;
    justify-content: center;
}

.contact-main {
    width: 100%;
    max-width: 1200px; 
    text-align: center;
}

.contact-main h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--light);
}

.contact-main p {
    color: #b0b0d0;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.contact-card {
    background: var(--gray);
    padding: 25px 20px;
    border-radius: 12px;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}

.contact-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: var(--primary);
    font-size: 1.3rem;
}

.contact-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--light);
}

.contact-card p {
    color: #a0a0c0;
    margin-bottom: 15px;
    font-size: 0.85rem;
    line-height: 1.4;
}

.contact-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.contact-link:hover {
    color: var(--secondary);
    gap: 8px;
}

/* Responsive Design for Contact Section */
@media (max-width: 1200px) {
    .contact-main {
        max-width: 1000px;
    }
}

@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .contact-card {
        padding: 30px 25px;
        min-height: auto;
    }
    
    .contact-icon {
        width: 70px;
        height: 70px;
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    
    .contact-card h4 {
        font-size: 1.2rem;
    }
    
    .contact-card p {
        font-size: 0.9rem;
    }
    
    .contact-link {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-main {
        max-width: 500px;
    }
}

@media (max-width: 480px) {
    .contact-main h3 {
        font-size: 1.7rem;
    }
    
    .contact-main p {
        font-size: 1rem;
    }
    
    .contact-card {
        padding: 25px 20px;
    }
}

/* Footer */
footer {
    background: rgba(139, 92, 246, 0.3);
    padding: 20px 0;
    position: relative;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-bottom p {
    color: #a0a0c0;
    font-size: 0.9rem;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 50px;
    height: 50px;
    background: var(--gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

/* Image Placeholder */
.image-container {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: var(--gray);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--light-gray);
}

.image-container img {
    width: 100%;
    height: 500px;
    object-fit: cover; 
}

.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--gray);
    color: #888;
    text-align: center;
    padding: 20px;
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--primary);
}

/* Responsive Design  */
@media (max-width: 768px) {
    .skill-category {
        padding: 18px 20px;
    }
    
    .skill-category h3 {
        font-size: 1.1rem;
    }
    
    .skill-category h3 i {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .skill-tags {
        padding-left: 44px;
        gap: 8px;
    }
    
    .skill-tag {
        padding: 4px 12px;
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .skill-tags {
        padding-left: 0;
        margin-top: 15px;
    }
    
    .skill-category h3 {
        flex-wrap: wrap;
    }
}

/* Other Responsive Design  */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-content {
        margin-left: 20px;
    }
    
    .details-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .initiatives-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .about-highlights {
        flex-direction: column;
    }
}

/* Animation Classes */
.skill-category, .project-card, .timeline-item, .contact-card, .education-card, .certification-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.skill-category.animate-in, 
.project-card.animate-in, 
.timeline-item.animate-in,
.contact-card.animate-in,
.education-card.animate-in,
.certification-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--dark);
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--light-gray);
}

.nav-links.active li {
    margin: 10px 0;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.skill-progress {
    transition: width 0.8s ease-in-out;
}