/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Beautiful Purple-Blue Dark Theme */
    --primary-bg: #0f0f23;           /* Deep dark blue background */
    --secondary-bg: #1a1a2e;         /* Slightly lighter dark blue */
    --card-bg: #16213e;              /* Card background with purple tint */
    --accent-bg: #0f3460;            /* Accent backgrounds */
    
    --primary-purple: #6366f1;       /* Vibrant indigo */
    --secondary-purple: #8b5cf6;     /* Bright purple */
    --accent-blue: #3b82f6;          /* Electric blue */
    --cyan-accent: #06b6d4;          /* Cyan for highlights */
    
    --text-primary: #f8fafc;         /* Crisp white text */
    --text-secondary: #cbd5e1;       /* Light gray text */
    --text-muted: #94a3b8;           /* Muted text */
    
    --border-color: #334155;         /* Subtle borders */
    --border-accent: #475569;        /* Accent borders */
    
    --glow-purple: rgba(139, 92, 246, 0.4);
    --glow-blue: rgba(59, 130, 246, 0.4);
    --glow-cyan: rgba(6, 182, 212, 0.4);
    
    --shadow-dark: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.3);
    --shadow-hover: 0 8px 40px rgba(139, 92, 246, 0.4);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* Conway's Game of Life Background */
.conway-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--primary-bg);
    min-height: 100vh;
}

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

/* Navigation Styles */
.navbar {
    background: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo h2 {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 1.5rem;
    text-shadow: 0 0 20px var(--glow-purple);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 20px var(--glow-purple);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-purple), var(--secondary-purple));
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

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

.bar {
    width: 25px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-purple), var(--secondary-purple));
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 120px 20px 60px;
    background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-purple) 50%, var(--secondary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 0 0 40px var(--glow-purple);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 20px var(--glow-purple);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-purple);
    border: 2px solid var(--primary-purple);
    box-shadow: 0 0 20px var(--glow-purple);
}

.btn-secondary:hover {
    background: var(--primary-purple);
    color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.hero-placeholder {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--accent-bg) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    border: 2px solid var(--border-accent);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.hero-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(139, 92, 246, 0.1), transparent);
    animation: shimmer 3s infinite;
}

.hero-placeholder:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 0 50px var(--glow-purple);
}

.ai-icon {
    font-size: 6rem;
    z-index: 1;
    filter: drop-shadow(0 0 20px var(--glow-purple));
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Projects Section */
.projects {
    padding: 80px 0;
    background: var(--primary-bg);
    position: relative;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-purple);
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-bg) 0%, var(--card-bg) 100%);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.9) 0%, rgba(139, 92, 246, 0.9) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.btn-view-pdf {
    background: var(--text-primary);
    color: var(--primary-purple);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.btn-view-pdf:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.4);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    box-shadow: 0 2px 10px var(--glow-purple);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 15, 35, 0.9);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--card-bg);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 16px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border-accent);
    box-shadow: var(--shadow-glow);
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    transition: var(--transition);
}

.close:hover {
    color: var(--primary-purple);
    text-shadow: 0 0 10px var(--glow-purple);
}

.modal-project-title {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.modal-project-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.detail-section h4 {
    color: var(--primary-purple);
    margin-bottom: 0.5rem;
}

.detail-section ul {
    color: var(--text-secondary);
    padding-left: 1rem;
}

.modal-media {
    margin: 2rem 0;
}

.modal-media h4 {
    color: var(--primary-purple);
    margin-bottom: 1rem;
}

.modal-media img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.pdf-viewer {
    width: 100%;
    height: 400px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    background: var(--accent-bg);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--primary-bg) 100%);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.contact-link {
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.contact-link:hover {
    text-decoration: none;
    color: inherit;
}

.contact-item::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: var(--transition);
}

.contact-item:hover::before {
    left: 100%;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-purple);
}

.contact-item h4 {
    color: var(--primary-purple);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    transition: var(--transition);
}

.contact-item p {
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-item:hover h4 {
    color: var(--secondary-purple);
    text-shadow: 0 0 10px var(--glow-purple);
}

.contact-item:hover p {
    color: var(--text-primary);
    text-shadow: 0 0 5px var(--glow-purple);
}

/* About Page Styles */
.about-hero {
    padding: 120px 0 80px;
    background: var(--primary-bg);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    display: flex;
    justify-content: center;
}

.profile-placeholder {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--accent-bg) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-accent);
    box-shadow: var(--shadow-glow);
    transition: var(--transition);
}

.profile-placeholder:hover {
    transform: scale(1.05);
    box-shadow: 0 0 50px var(--glow-purple);
}

.profile-icon {
    font-size: 4rem;
    filter: drop-shadow(0 0 20px var(--glow-purple));
}

.about-text h1 {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.about-text h2 {
    font-size: 1.5rem;
    color: var(--secondary-purple);
    margin-bottom: 1rem;
    font-weight: 500;
}

.lead {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-details {
    padding: 80px 0;
    background: var(--secondary-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.about-story h3 {
    color: var(--primary-purple);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.about-story p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-skills h3 {
    color: var(--primary-purple);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

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

.skills-category h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--cyan-accent) 100%);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 2px 10px var(--glow-blue);
    transition: var(--transition);
}

.skill:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--glow-blue);
}

/* Experience Section */
.experience {
    padding: 80px 0;
    background: var(--primary-bg);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 0 0 150px;
    text-align: center;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    color: var(--text-primary);
    border-radius: 20px;
    font-weight: 600;
    align-self: flex-start;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 20px var(--glow-purple);
}

.timeline-content {
    flex: 1;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    margin: 0 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.timeline-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.timeline-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-bg);
    border-radius: 12px;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.timeline-logo:hover {
    border-color: var(--primary-purple);
    box-shadow: 0 0 15px var(--glow-purple);
}

.company-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    transition: var(--transition);
}

.company-logo:hover {
    transform: scale(1.05);
}

/* Fallback styling for missing logos */
.timeline-logo:has(.company-logo[alt*="Logo"]) {
    background: linear-gradient(135deg, var(--primary-purple), var(--secondary-purple));
}

.timeline-logo::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, transparent 40%, var(--card-bg) 70%);
    border-radius: inherit;
    opacity: 0;
    transition: var(--transition);
}

.timeline-text {
    flex: 1;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-purple);
}

.timeline-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.timeline-text h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.timeline-content h4 {
    color: var(--secondary-purple);
    margin-bottom: 1rem;
    font-weight: 500;
}

.timeline-text h4 {
    color: var(--secondary-purple);
    margin-bottom: 0;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Achievements Section */
.achievements {
    padding: 80px 0;
    background: var(--secondary-bg);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.achievement-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-purple), var(--secondary-purple), var(--accent-blue));
}

.achievement-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-purple);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 10px var(--glow-purple));
}

.achievement-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.achievement-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--primary-bg);
    color: var(--text-secondary);
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-purple);
    text-shadow: 0 0 10px var(--glow-purple);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-purple), var(--secondary-purple));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--secondary-purple), var(--accent-blue));
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 15, 35, 0.95);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        border-top: 1px solid var(--border-color);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column !important;
        padding-left: 50px;
    }

    .timeline-date {
        flex: none;
        align-self: flex-start;
        margin-bottom: 1rem;
    }

    .timeline-content {
        margin: 0;
    }

    .timeline-header {
        flex-direction: column;
        gap: 1rem;
    }

    .timeline-logo {
        align-self: flex-start;
        width: 50px;
        height: 50px;
    }

    .project-details-grid {
        grid-template-columns: 1fr;
    }

    .hero-placeholder {
        width: 280px;
        height: 280px;
    }

    .ai-icon {
        font-size: 4rem;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-text h1 {
        font-size: 2rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .hero {
        padding: 100px 10px 40px;
    }

    .modal-content {
        margin: 10% auto;
        padding: 1rem;
        width: 95%;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
    }
}

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .contact-info {
        grid-template-columns: 1fr;
    }

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column !important;
        padding-left: 50px;
    }

    .timeline-date {
        flex: none;
        align-self: flex-start;
        margin-bottom: 1rem;
    }

    .timeline-content {
        margin: 0;
    }

    .project-details-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-text h1 {
        font-size: 2rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .hero {
        padding: 100px 10px 40px;
    }

    .modal-content {
        margin: 10% auto;
        padding: 1rem;
        width: 95%;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
    }
}