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

:root {
    /* Comfortable Black & White Color Palette */
    --primary-color: #000000;        /* Pure Black */
    --secondary-color: #333333;      /* Dark Gray */
    --accent-color: #666666;         /* Medium Gray */
    --accent-secondary: #999999;     /* Light Gray */
    --accent-warning: #cccccc;       /* Very Light Gray */
    
    /* Legacy colors for compatibility */
    --dark-grey: #000000;
    --medium-grey: #666666;
    --light-grey: #f8f9fa;
    --white: #ffffff;
    
    /* Subtle gradients and shadows */
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-subtle: linear-gradient(135deg, #ffffff, #f8f9fa);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.03);
    --shadow-heavy: 0 4px 12px rgba(0, 0, 0, 0.06);
    --transition: all 0.2s ease;
    --transition-fast: all 0.1s ease;
    
    /* Light theme colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #000000;
    --text-secondary: #333333;
    --border-color: #e9ecef;
    --card-bg: #ffffff;
}

[data-theme="dark"] {
    --primary-color: #4dabf7;
    --secondary-color: #339af0;
    --accent-color: #74c0fc;
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --border-color: #404040;
    --card-bg: #2d2d2d;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Import Professional Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-primary);
    box-shadow: var(--shadow-card);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

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

.nav-logo h2 {
    color: var(--primary-color);
    font-weight: 700;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 400;
    transition: var(--transition);
    position: relative;
}

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

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
}

/* Theme Toggle */
.theme-switcher {
    display: flex;
    align-items: center;
}

.theme-toggle {
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: white;
    font-size: 1rem;
    box-shadow: var(--shadow);
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

.theme-toggle:active {
    transform: translateY(0);
}

.theme-toggle i {
    transition: var(--transition);
}

[data-theme="dark"] .theme-toggle i:before {
    content: "\f185"; /* sun icon */
}

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

/* Hero Section - Comfortable Black & White Design */
.hero {
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 300"><polygon fill="%23ffffff" fill-opacity="0.1" points="0,300 0,200 800,0 1000,100 1000,300"/></svg>');
    background-size: cover;
    background-position: center;
}

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

.hero-content {
    max-width: 600px;
    text-align: center;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-1px);
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.social-links a {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Section Styles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3rem;
    position: relative;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.section-title::after {
    content: '';
    width: 80px;
    height: 2px;
    background: var(--primary-color);
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

/* Professional Section Spacing */
section {
    padding: 5rem 0;
    position: relative;
}

/* Subtle Animations - Easy on the Eyes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--light-grey);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--medium-grey);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.stat h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--medium-grey);
    font-size: 0.9rem;
}

.profile-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

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

.education-item {
    margin-bottom: 1.5rem;
}

.education-item h4 {
    color: var(--dark-grey);
    margin-bottom: 0.5rem;
}

.education-item p {
    color: var(--medium-grey);
    margin-bottom: 0.25rem;
}

/* Experience Section */
.experience {
    padding: 6rem 0;
    background: var(--white);
}

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

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--secondary-color);
    transform: translateX(-50%);
}

.experience-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

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

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

.experience-date {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    position: relative;
    z-index: 2;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 1rem;
    width: 12px;
    height: 12px;
    background: var(--secondary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.experience-content {
    flex: 1;
    background: var(--light-grey);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    position: relative;
    max-width: 45%;
}

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

.experience-content h4 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.experience-content ul {
    list-style: none;
    padding: 0;
}

.experience-content li {
    margin-bottom: 0.8rem;
    color: var(--medium-grey);
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
}

.experience-content li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 0.8rem;
}

/* Skills Section */
.skills {
    padding: 6rem 0;
}

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

.skill-category {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

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

.skill-category i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-item {
    background: var(--light-grey);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--medium-grey);
    transition: var(--transition);
}

.skill-item:hover {
    background: var(--secondary-color);
    color: var(--white);
}

/* Projects Section */
.projects {
    padding: 6rem 0;
    background: var(--light-grey);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

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

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

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
    border-radius: 20px;
}

.project-card:hover::before {
    opacity: 0.02;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--accent-color);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.project-image {
    height: 200px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

.project-image i {
    position: relative;
    z-index: 2;
}

.project-content {
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.project-title {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
    line-height: 1.3;
}

.project-category {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-role {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.project-role i {
    font-size: 0.7rem;
}

.project-impact {
    background: rgba(39, 174, 96, 0.1);
    color: #27ae60;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-left: 3px solid #27ae60;
}

.project-impact i {
    color: #27ae60;
    font-size: 0.8rem;
}

.project-technologies {
    background: var(--bg-secondary);
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border-left: 3px solid var(--accent-color);
}

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

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

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

.project-tag {
    background: var(--light-grey);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--medium-grey);
}

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

.project-link {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    transition: var(--transition);
}

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

/* Contact Section */
.contact {
    padding: 6rem 0;
}

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

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.contact-info p {
    margin-bottom: 2rem;
    color: var(--medium-grey);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.contact-item i {
    color: var(--secondary-color);
    width: 20px;
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    transition: var(--transition);
}

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

.additional-info {
    margin-top: 2rem;
}

.additional-info h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    margin-top: 1.5rem;
    font-size: 1.2rem;
}

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

.language-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.language-item span {
    font-weight: 600;
    color: var(--medium-grey);
    min-width: 80px;
}

.skill-level {
    flex: 1;
    height: 8px;
    background: var(--light-grey);
    border-radius: 4px;
    margin-left: 1rem;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
}

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

.competencies-list li {
    margin-bottom: 0.8rem;
    color: var(--medium-grey);
    line-height: 1.6;
}

.competencies-list strong {
    color: var(--primary-color);
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--light-grey);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

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

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

.footer-links a {
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }

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

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

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

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

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }

    .project-filters {
        flex-direction: column;
        align-items: center;
    }

    /* Experience responsive */
    .experience-timeline::before {
        left: 20px;
    }

    .experience-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 40px;
    }

    .experience-item::before {
        left: 20px;
        transform: translateX(-50%);
    }

    .experience-content {
        max-width: 100%;
        margin-left: 0;
    }

    .experience-date {
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .nav-container {
        padding: 1rem;
    }

    .container {
        padding: 0 10px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Research Section */
.research {
    background: var(--light-grey);
    padding: 5rem 0;
}

.research-content {
    max-width: 1000px;
    margin: 0 auto;
}

.thesis-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 2px solid #e8f4fd;
}

.thesis-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.thesis-header h3 {
    margin: 0;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.confidential-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.thesis-details {
    padding: 2rem;
}

.thesis-details h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.thesis-meta {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--accent-color);
    font-size: 0.95rem;
    line-height: 1.6;
}

.research-overview,
.research-methods,
.research-impact {
    margin-bottom: 2rem;
}

.research-overview h5,
.research-methods h5,
.research-impact h5 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.research-overview h5::before {
    content: "🔬";
    font-size: 1.2rem;
}

.research-methods h5::before {
    content: "⚙️";
    font-size: 1.2rem;
}

.research-impact h5::before {
    content: "💼";
    font-size: 1.2rem;
}

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

.achievement-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid var(--accent-color);
    transition: var(--transition);
}

.achievement-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.achievement-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
    min-width: 20px;
}

.achievement-item span {
    font-size: 0.95rem;
    line-height: 1.4;
}

.research-methods ul,
.research-impact ul {
    list-style: none;
    padding: 0;
}

.research-methods li,
.research-impact li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.research-methods li::before,
.research-impact li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.1rem;
}

.confidential-notice {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 2rem;
    border-left: 4px solid #f39c12;
}

.confidential-notice p {
    margin: 0;
    color: #856404;
    font-size: 0.9rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.confidential-notice i {
    color: #f39c12;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

/* Responsive Design for Research Section */
@media (max-width: 768px) {
    .thesis-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .thesis-header h3 {
        font-size: 1.3rem;
    }
    
    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .thesis-details {
        padding: 1.5rem;
    }
    
    .research {
        padding: 3rem 0;
    }
}

/* Animation and Scroll Effects */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Scroll Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animate {
    opacity: 1;
}

.fade-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.fade-left {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.fade-right {
    animation: fadeInRight 0.6s ease-out forwards;
}

.scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

.slide-up {
    animation: slideInFromBottom 0.6s ease-out forwards;
}

/* Staggered Animation Delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Enhanced Skills Section */
.skills-enhanced {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.skills-enhanced-title {
    text-align: center;
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.skills-bars {
    max-width: 800px;
    margin: 0 auto;
}

.skill-bar {
    margin-bottom: 2rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

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

.skill-percentage {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.skill-progress {
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 10px;
    width: 0;
    transition: width 2s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.skill-bar:hover .progress-fill {
    box-shadow: 0 0 10px rgba(31, 78, 121, 0.3);
}

/* Enhanced Hover Effects */
.project-card {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.project-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .project-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.skill-item {
    transition: all 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .skill-item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth Page Transitions */
* {
    scroll-behavior: smooth;
}

/* Enhanced Button Animations */
.btn {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Parallax Effect for Hero Section */
.hero {
    position: relative;
    background-attachment: fixed;
}

.hero::before {
    animation: float 6s ease-in-out infinite;
}

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

/* Enhanced Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    /* Mobile Navigation */
    .nav-container {
        padding: 1rem 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .nav-menu a {
        font-size: 1.1rem;
        padding: 0.5rem 1rem;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .nav-menu a:hover {
        background: var(--gradient);
        color: white;
    }
    
    .hamburger {
        display: flex;
        cursor: pointer;
        transition: all 0.3s ease;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    /* Mobile Theme Toggle */
    .theme-toggle {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    /* Mobile Hero Section */
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: 1rem 2rem;
    }
    
    /* Mobile Skills Section */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
    
    .skills-enhanced {
        padding: 1.5rem;
        margin-top: 2rem;
    }
    
    .skills-enhanced-title {
        font-size: 1.5rem;
    }
    
    /* Mobile Projects Section */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-filters {
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .filter-btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
    
    /* Mobile About Section */
    .about-content {
        flex-direction: column;
    }
    
    .about-stats {
        justify-content: space-around;
    }
}

/* Tablet Responsiveness */
@media (max-width: 1024px) and (min-width: 769px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .skill-items {
        gap: 0.5rem;
    }
    
    .skill-item {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .project-content {
        padding: 1.5rem;
    }
    
    .skills-enhanced {
        padding: 1rem;
    }
}

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.1);
}

.scroll-progress-bar {
    height: 100%;
    background: var(--gradient);
    width: 0%;
    transition: width 0.1s ease;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.back-to-top:active {
    transform: translateY(-2px);
}

/* Loading Animation for Page */
@keyframes pageLoad {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body {
    animation: pageLoad 0.6s ease-out;
}

/* Smooth Scrolling Enhancement */
html {
    scroll-behavior: smooth;
}

/* Focus States for Accessibility */
button:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Interactive Elements Hover States */
.social-links a:hover {
    transform: translateY(-3px) scale(1.1);
    color: var(--primary-color);
}

.filter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Dark Mode Specific Enhancements */
[data-theme="dark"] .scroll-progress {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .back-to-top {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .nav-menu {
    border-top: 1px solid var(--border-color);
}

/* Role Expertise Section */
.expertise {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--medium-grey);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.expertise-card {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.expertise-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--accent-color);
}

.expertise-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.expertise-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.expertise-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 1rem;
    color: var(--medium-grey);
    font-weight: 600;
}

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

.expertise-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.highlight {
    background: rgba(46, 117, 182, 0.1);
    color: var(--secondary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(46, 117, 182, 0.2);
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background: var(--white);
}

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

.testimonial-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.quote-icon {
    color: var(--accent-color);
    font-size: 2rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.testimonial-content p {
    font-style: italic;
    line-height: 1.6;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.author-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.author-info p {
    color: var(--medium-grey);
    font-size: 0.9rem;
    margin: 0;
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.rating i {
    color: #ffc107;
    font-size: 0.9rem;
}

/* Resume Download Section */
.resume-download {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    text-align: center;
}

.resume-download h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.resume-download .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Enhanced Contact Form */
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(46, 117, 182, 0.1);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
    border-color: #e74c3c;
}

.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
    border-color: #27ae60;
}

.error-message {
    color: #e74c3c;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}

.success-message {
    color: #27ae60;
    font-size: 0.9rem;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(39, 174, 96, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.form-checkbox input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.form-checkbox label {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-secondary);
}

.form-checkbox a {
    color: var(--secondary-color);
    text-decoration: none;
}

.form-checkbox a:hover {
    text-decoration: underline;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Project Search and Controls */
.projects-controls {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.project-search {
    display: flex;
    justify-content: center;
}

.search-box {
    position: relative;
    max-width: 500px;
    width: 100%;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--medium-grey);
    z-index: 2;
}

.search-box input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(46, 117, 182, 0.1);
}

.clear-search {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--medium-grey);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
    display: none;
}

.clear-search:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.clear-search.show {
    display: block;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-stats {
    text-align: center;
    color: var(--medium-grey);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Enhanced Project Cards */
.project-card {
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.project-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .project-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* No Projects Found State */
.no-projects-found {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--medium-grey);
}

.no-projects-found i {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    opacity: 0.7;
}

.no-projects-found h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.no-projects-found p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Mobile Enhancements for Interactive Elements */
@media (max-width: 768px) {
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 1rem;
    }
    
    .scroll-progress {
        height: 2px;
    }
    
    /* Mobile Expertise */
    .expertise-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .expertise-card {
        padding: 2rem 1.5rem;
    }
    
    .expertise-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    /* Mobile Testimonials */
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .testimonial-author {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    /* Mobile Project Controls */
    .projects-controls {
        gap: 1rem;
    }
    
    .project-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
    
    /* Mobile Contact Form */
    .contact-form {
        padding: 1.5rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.875rem;
    }
}