/* CSS Variables for consistent theming */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --background-primary: #ffffff;
    --background-secondary: #f8fafc;
    --background-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-primary);
    overflow-x: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
    box-sizing: border-box;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-primary);
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
    padding: 0 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo a:hover {
    color: var(--primary-color);
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: var(--background-secondary);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

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

.hero-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.hero-description {
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    text-align: center;
    min-height: 44px; /* Minimum touch target size */
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.btn-icon {
    width: 25px;
    height: 25px;
    fill: currentColor;
    flex-shrink: 0;
}

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

.btn-primary .btn-icon {
    fill: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover .btn-icon {
    fill: white;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary .btn-icon {
    fill: var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary:hover .btn-icon {
    fill: white;
}

.btn-with-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

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

.profile-photo {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 6px;
    box-shadow: var(--shadow-xl);
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background-color: var(--background-secondary);
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--background-secondary);
}

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

.about-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Education Section */
.course-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 16px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.course-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.education {
    padding: 80px 0;
    background-color: var(--background-primary);
}

.education-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.education-card h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

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

.education-detail-item {
    display: inline-flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.education-detail-item__icon {
    width: 30px;
    height: 30px;
    /* background: white; */
    /* fill: linear-gradient(135deg, var(--primary-color), var(--accent-color)); */
    fill: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 1px;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(800px, 100%), 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.education-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.education-icon {
    width: 75px;
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    background: var(--background-tertiary);
    border-radius: var(--border-radius);
}

.education-icon svg {
    width: 50px;
    height: 50px;
    fill: black;
}

.education-title h3 {
    margin-bottom: 0.25rem;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.education-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 400;
    margin: 0;
}

.education-details, .focus-areas, .relevant-coursework {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.education-details:hover, .focus-areas:hover, .relevant-coursework:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.education-details h4, .focus-areas h4, .relevant-coursework h4 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.focus-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.focus-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.education-details-list, .focus-tags, .coursework-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.institution {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.3rem;
}

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

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 0;
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.timeline-content:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.timeline-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.company {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

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

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

.responsibilities li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Skills Section */
.skills {
    padding: 80px 0;
    background-color: var(--background-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: 2rem;
    width: 100%;
}

.skill-category {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    width: 100%;
    box-sizing: border-box;
    overflow-wrap: break-word;
}

.skill-category:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.skill-category h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Projects Section */
.projects {
    padding: 80px 0;
    background-color: var(--background-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
    gap: 2rem;
    width: 100%;
}

.project-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-content {
    padding: 2rem;
}

.project-content h3::after {
    content: '';
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    margin: 1rem 0;
}

.project-description::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    margin: 1rem 0;
}

.tech-stack::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    margin: 1rem 0;
}

.project-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.tech-tag {
    background-color: var(--background-secondary);
    color: var(--text-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.project-link:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: var(--background-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: 2rem;
    width: 100%;
}

.service-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.service-icon svg{
    width: 7rem;
    height: 7rem;
    margin-bottom: 1.5rem;
    fill: var(--primary-color)
}

.service-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

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

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--background-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3,
.contact-form h3 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-card {
    display: flex;
    align-items: center;
    background: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 36px;
    height: 36px;
    color: white;
}

.email-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.linkedin-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.github-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.contact-details {
    flex-grow: 1;
}

.contact-type {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1rem;
    display: block;
}

.contact-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.resume-download {
    margin-top: 1.5rem;
}

.resume-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    width: 100%;
}

.download-icon {
    width: 20px;
    height: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--background-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    padding: 2rem 0;
    background-color: var(--background-tertiary);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer p {
    color: var(--text-light);
}

/* Animations */
.fade-in {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.3s; }
.fade-in:nth-child(3) { animation-delay: 0.5s; }
.fade-in:nth-child(4) { animation-delay: 0.7s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */

/* Extra Small Devices (Portrait Phones, 320px and up) */
@media (max-width: 374px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: clamp(1.8rem, 8vw, 2.2rem);
        line-height: 1.1;
        margin-bottom: 0.75rem;
    }

    .hero-subtitle {
        font-size: clamp(1rem, 4.5vw, 1.1rem);
        margin-bottom: 1rem;
    }

    .hero-description {
        font-size: clamp(0.9rem, 3.5vw, 1rem);
        margin-bottom: 1.5rem;
    }

    .profile-photo {
        width: 180px;
        height: 180px;
        margin: 0 auto;
    }

    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
        min-width: 120px;
    }

    .hero-buttons {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    .section-title {
        font-size: clamp(1.8rem, 6vw, 2rem);
        margin-bottom: 2.5rem;
    }

    .education-grid,
    .projects-grid,
    .services-grid,
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .timeline-item {
        padding-left: 60px;
        margin-bottom: 2rem;
    }

    .timeline-marker {
        left: 18px;
    }

    .timeline::before {
        left: 26px;
    }

    .modal-content {
        width: 98%;
        margin: 5% auto;
    }
}

/* Small Devices (Landscape Phones, 375px and up) */
@media (min-width: 375px) and (max-width: 575px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero-title {
        font-size: clamp(2rem, 7vw, 2.4rem);
    }

    .hero-subtitle {
        font-size: clamp(1.1rem, 4vw, 1.2rem);
    }

    .profile-photo {
        width: 200px;
        height: 200px;
    }

    .btn {
        padding: 0.75rem 1.4rem;
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.25rem;
    }
}

/* Medium Small Devices (Small Tablets, 576px to 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-title {
        font-size: clamp(2.2rem, 6vw, 2.6rem);
    }

    .hero-subtitle {
        font-size: clamp(1.2rem, 3.5vw, 1.3rem);
    }

    .profile-photo {
        width: 220px;
        height: 220px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .timeline-item {
        padding-left: 70px;
    }
}

/* Tablets and Small Laptops (768px to 1023px) */
@media (max-width: 1023px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s ease;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-color);
        padding: 1rem 0;
        z-index: 999;
    }

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

    .nav-menu li {
        padding: 1rem 0;
        border-bottom: 1px solid rgba(226, 232, 240, 0.3);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-link {
        padding: 1rem 2rem;
        font-size: 1.1rem;
        display: block;
        width: 100%;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.5rem;
    }

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

    .projects-grid,
    .services-grid,
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* Mobile Devices (up to 768px) */
@media (max-width: 768px) {
    body {
        font-size: 16px;
        line-height: 1.6;
    }

    .container {
        padding: 0 1.5rem;
    }

    /* Navigation improvements */
    .navbar {
        height: 60px;
    }

    .nav-container {
        height: 60px;
    }

    .nav-menu {
        top: 60px;
    }

    /* Hero section optimizations */
    .hero {
        padding: 80px 0 60px;
        min-height: auto;
    }

    .hero-content {
        gap: 2.5rem;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 2.8rem);
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: clamp(1.1rem, 5vw, 1.4rem);
        margin-bottom: 1.25rem;
    }

    .hero-description {
        font-size: clamp(1rem, 4vw, 1.1rem);
        margin-bottom: 2rem;
        max-width: 90%;
        margin-left: auto;
        margin-right: auto;
    }

    .profile-photo {
        width: clamp(180px, 40vw, 250px);
        height: clamp(180px, 40vw, 250px);
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
        min-width: 140px;
    }

    /* Section spacing */
    .about,
    .education,
    .experience,
    .skills,
    .projects,
    .services,
    .contact {
        padding: 60px 0;
    }

    .section-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
        margin-bottom: 3rem;
    }

    /* Timeline improvements */
    .timeline-item {
        padding-left: 60px;
        margin-bottom: 2.5rem;
    }

    .timeline-marker {
        left: 16px;
        width: 14px;
        height: 14px;
    }

    .timeline::before {
        left: 22px;
    }

    .timeline-content {
        padding: 1.5rem;
    }

    .timeline-content h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }

    /* Card improvements */
    .project-card,
    .service-card,
    .skill-category,
    .education-card,
    .education-details,
    .focus-areas,
    .relevant-coursework {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .project-card h3,
    .service-card h3,
    .skill-category h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    /* Education section mobile fixes */
    .education-grid {
        grid-template-columns: 1fr;
        max-width: none;
    }

    .education-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }

    .education-icon {
        width: 60px;
        height: 60px;
        margin-right: 0;
    }

    .education-icon svg {
        width: 40px;
        height: 40px;
    }

    .education-title h3 {
        font-size: 1.4rem;
        text-align: center;
    }

    .education-subtitle {
        font-size: 1rem;
        text-align: center;
    }

    .education-details-list,
    .focus-tags,
    .coursework-list {
        justify-content: center;
        gap: 0.75rem;
    }

    .education-detail-item,
    .focus-tag,
    .course-tag {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }

    /* Skills section mobile fixes */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .skills-list {
        justify-content: center;
        gap: 0.6rem;
    }

    .skill-tag {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }

    /* Projects grid mobile fixes */
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .tech-stack {
        justify-content: center;
    }

    .tech-tag {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }

    .project-links {
        justify-content: center;
        flex-wrap: wrap;
    }

    /* Services grid mobile fixes */
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }

    .service-icon svg {
        width: 5rem;
        height: 5rem;
        margin-bottom: 1rem;
    }

    /* Contact section mobile fixes */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .contact-cards {
        gap: 1.25rem;
    }

    .contact-card {
        padding: 1rem;
        flex-direction: row;
        align-items: center;
    }

    .contact-icon {
        width: 45px;
        height: 45px;
        margin-right: 1rem;
    }

    .contact-icon svg {
        width: 28px;
        height: 28px;
    }

    .contact-type {
        font-size: 0.95rem;
    }

    .contact-link {
        font-size: 0.9rem;
    }

    /* Form improvements */
    .form-group {
        margin-bottom: 1.25rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 1rem;
        font-size: 1rem;
    }

    /* Modal improvements */
    .modal-content {
        width: 95%;
        margin: 10% auto 5%;
        max-height: 75vh;
    }

    .modal-header {
        padding: 1.25rem;
    }

    .modal-header h2 {
        font-size: 1.3rem;
    }

    .modal-body {
        padding: 1.5rem;
        max-height: calc(75vh - 80px);
    }

    /* Image gallery mobile fixes */
    .image-gallery {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .gallery-image {
        aspect-ratio: 16/10;
    }
}

/* Smooth scrolling offset for fixed navbar */
html {
    scroll-padding-top: 70px;
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 60px;
    }
}

/* Smooth scrolling offset for fixed navbar */
html {
    scroll-padding-top: 70px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--background-primary);
    margin: 5% auto;
    padding: 0;
    border: none;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    background-color: var(--background-secondary);
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.close {
    color: var(--text-secondary);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close:hover,
.close:focus {
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
    max-height: calc(80vh - 100px);
    overflow-y: auto;
}

/* README Modal Styles */
#readmeContent {
    line-height: 1.7;
}

#readmeContent h1,
#readmeContent h2,
#readmeContent h3 {
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

#readmeContent h1 {
    font-size: 2rem;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

#readmeContent h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

#readmeContent h3 {
    font-size: 1.25rem;
}

#readmeContent p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

#readmeContent ul,
#readmeContent ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

#readmeContent li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

#readmeContent strong {
    color: var(--text-primary);
    font-weight: 600;
}

#readmeContent code {
    background-color: var(--background-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875rem;
    color: var(--primary-color);
}

#readmeContent pre {
    background-color: var(--background-tertiary);
    padding: 1rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 1rem 0;
}

#readmeContent img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 1rem 0;
}

#readmeContent a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

#readmeContent a:hover {
    text-decoration: underline;
}

/* Image Gallery Styles */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.gallery-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    aspect-ratio: 16/9;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: scale-down;
    transition: var(--transition);
}

.gallery-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.gallery-image:hover img {
    transform: scale(1.1);
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    padding: 1rem;
    font-size: 0.875rem;
    opacity: 0;
    transition: var(--transition);
}

.gallery-image:hover .image-caption {
    opacity: 1;
}

@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
        max-height: 70vh;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .image-gallery {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 0.75rem;
    }
}

/* Lightbox Styles */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(4px);
}

.lightbox-content {
    position: relative;
    margin: auto;
    padding: 0;
    width: 90%;
    max-width: 1200px;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
    transition: var(--transition);
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.lightbox-close:hover {
    color: var(--primary-color);
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

#lightboxImage {
    max-width: 95%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    transition: opacity 0.3s ease;
}

.lightbox-caption {
    color: white;
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 2rem;
    text-align: center;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 500;
    max-width: 80%;
    line-height: 1.5;
    backdrop-filter: blur(10px);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: none;
}

.lightbox-prev,
.lightbox-next {
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(37, 99, 235, 0.8);
    transform: scale(1.1);
}

.lightbox-prev:active,
.lightbox-next:active {
    transform: scale(0.95);
}

/* Mobile lightbox adjustments */
@media (max-width: 768px) {
    .lightbox-close {
        top: 10px;
        right: 15px;
        font-size: 30px;
        width: 45px;
        height: 45px;
    }
    
    #lightboxImage {
        max-width: 98%;
        max-height: 70vh;
    }
    
    .lightbox-caption {
        font-size: 1rem;
        padding: 0.8rem 1.5rem;
        margin-top: 0.5rem;
        max-width: 95%;
    }
    
    .lightbox-nav {
        padding: 0 10px;
    }
    
    .lightbox-prev,
    .lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}