:root {
    --primary: #00f5d4;
    --primary-dark: #00c9a7;
    --secondary: #7b2ff7;
    --accent: #f72585;
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --font-main: 'Roboto', sans-serif;
    --font-display: 'Orbitron', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: var(--bg-dark);
    padding: 0.5rem 1rem;
    z-index: 10000;
    text-decoration: none;
    font-weight: 700;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

.cursor {
    width: 8px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
}

.cursor-follower {
    width: 36px;
    height: 36px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.15s ease, opacity 0.15s ease;
    opacity: 0.5;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 2rem;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(10, 10, 15, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.logo {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 5%;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 650px;
    z-index: 2;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 1rem;
}

.hero h1 .typewriter {
    color: var(--primary);
    min-height: 1.2em;
    display: inline-block;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.hero-meta span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-meta .status-badge {
    background: rgba(0, 245, 212, 0.1);
    color: var(--primary);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(0, 245, 212, 0.08);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    border: 1px solid rgba(0, 245, 212, 0.2);
}

.status-badge .dot {
    width: 8px;
    height: 8px;
    background-color: #00ff88;
    border-radius: 50%;
    box-shadow: 0 0 8px #00ff88;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

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

.btn {
    padding: 0.8rem 1.6rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
    font-family: var(--font-main);
}

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

.btn.primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 245, 212, 0.3);
}

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

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

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icons a:hover,
.social-icons a:focus {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-bg {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 60%;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #12121a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

#heroCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch {
    font-family: var(--font-display);
    font-size: 12rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.12;
    position: absolute;
    animation: glitch 3s infinite;
    user-select: none;
}

@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-3px, 3px); }
    40% { transform: translate(3px, -3px); }
    60% { transform: translate(-3px, -3px); }
    80% { transform: translate(3px, 3px); }
}

.section {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 2.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.divider {
    width: 80px;
    height: 4px;
    background-color: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.about-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.about-image::before {
    content: '';
    position: absolute;
    width: min(280px, 85%);
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.25), rgba(123, 47, 247, 0.14) 55%, transparent 72%);
    filter: blur(12px);
    animation: photo-halo 5s ease-in-out infinite;
}

.about-image img {
    position: relative;
    width: min(300px, 100%);
    aspect-ratio: 1 / 1;
    padding: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary) 55%, var(--accent));
    object-fit: cover;
    object-position: center 25%;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
    transition: transform 0.45s ease, box-shadow 0.45s ease;
}

.about-image img:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 26px 55px rgba(0, 245, 212, 0.3), 0 18px 40px rgba(0, 0, 0, 0.55);
}

.about-image img.is-placeholder {
    object-fit: contain;
    background-color: var(--bg-card-hover);
}

.about-image .image-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(300px, 100%);
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    pointer-events: none;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
    background: linear-gradient(140deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0) 45%),
                linear-gradient(0deg, rgba(10, 10, 15, 0.5), transparent 45%);
}

@keyframes photo-halo {
    0%, 100% { transform: scale(1); opacity: 0.75; }
    50% { transform: scale(1.08); opacity: 1; }
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-text strong {
    color: var(--text-primary);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    margin: 1.5rem 0;
}

.info-item h3 {
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item p {
    color: var(--text-primary);
    font-weight: 500;
    margin: 0;
    line-height: 1.4;
}

.about-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.academic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 245, 212, 0.1);
}

.metric-card.large {
    grid-column: span 1;
}

.metric-value {
    font-family: var(--font-display);
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.metric-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.metric-caption {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.metric-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.subsection-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--text-primary);
    margin: 2rem 0 1.5rem;
    text-align: center;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.course-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 1.2rem;
    border-left: 4px solid var(--primary);
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: translateY(-3px);
    background: var(--bg-card-hover);
}

.course-card h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.course-card .score {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--primary);
}

.course-card .gp {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

.research-intro {
    text-align: center;
    margin-bottom: 2.5rem;
}

.research-intro p {
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 1.5rem;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.research-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(123, 47, 247, 0.15);
    border-color: rgba(0, 245, 212, 0.2);
}

.research-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.15), rgba(123, 47, 247, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary);
}

.research-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.research-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.research-note {
    display: flex;
    gap: 1rem;
    background: rgba(0, 245, 212, 0.05);
    border: 1px solid rgba(0, 245, 212, 0.15);
    border-radius: 10px;
    padding: 1.2rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.research-note i {
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.skill-category h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-card);
}

.skill-bar {
    margin-bottom: 1.2rem;
}

.skill-bar span:first-child {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.skill-bar span:last-child {
    float: right;
    color: var(--primary);
    font-size: 0.9rem;
}

.bar-fill {
    width: 100%;
    height: 6px;
    background-color: var(--bg-card);
    border-radius: 3px;
    overflow: hidden;
}

.bar-fill div {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    width: 0;
    transition: width 1.5s ease;
}

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

.filter-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--bg-card);
    color: var(--text-secondary);
    border: 2px solid transparent;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: var(--font-main);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.projects-empty {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
}

.project-card {
    background-color: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-card:not(.filter-hidden):hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.project-card.filter-hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
}

.project-card.filter-hidden.filter-collapsed {
    display: none;
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image .project-icon {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.9);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

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

.project-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

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

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-role {
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.project-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.92rem;
}

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

.project-tags span {
    padding: 0.3rem 0.8rem;
    background-color: rgba(0, 245, 212, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.hire-intro {
    text-align: center;
    margin-bottom: 2.5rem;
}

.hire-intro p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 1rem auto 0;
    line-height: 1.7;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.service-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 245, 212, 0.1);
    border-color: rgba(0, 245, 212, 0.2);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 245, 212, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary);
}

.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.hire-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.contact-info .info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
}

.contact-info .info-item i {
    color: var(--primary);
    font-size: 1.2rem;
    width: 30px;
    text-align: center;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 5px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color 0.3s ease;
    outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
}

.contact-form label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-secondary);
    pointer-events: none;
    transition: all 0.3s ease;
}

.contact-form input:focus + label,
.contact-form input:not(:placeholder-shown) + label,
.contact-form textarea:focus + label,
.contact-form textarea:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 0.8rem;
    font-size: 0.8rem;
    color: var(--primary);
    background-color: var(--bg-dark);
    padding: 0 0.3rem;
}

.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

.form-status {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 5px;
    font-size: 0.95rem;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(0, 245, 212, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 245, 212, 0.3);
}

.form-status.error {
    display: block;
    background: rgba(247, 37, 133, 0.1);
    color: var(--accent);
    border: 1px solid rgba(247, 37, 133, 0.3);
}

.footer {
    background-color: #08080d;
    padding: 2rem 5%;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.footer .social-icons a {
    border-color: var(--text-secondary);
}

.footer .social-icons a:hover,
.footer .social-icons a:focus {
    border-color: var(--primary);
    color: var(--primary);
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9997;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    color: var(--bg-dark);
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 245, 212, 0.35);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.chat-toggle:hover,
.chat-toggle:focus {
    transform: scale(1.05);
}

.chat-unread {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.chat-unread.visible {
    opacity: 1;
}

.chat-box {
    width: 360px;
    max-width: calc(100vw - 3rem);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    margin-bottom: 0.75rem;
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    max-height: 500px;
}

.chat-box.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.chat-header {
    background: linear-gradient(135deg, var(--secondary), rgba(0, 245, 212, 0.15));
    padding: 1rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.chat-status {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.chat-status .dot {
    width: 6px;
    height: 6px;
    background: #00ff88;
    border-radius: 50%;
}

.chat-close {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.3s ease;
}

.chat-close:hover {
    color: var(--accent);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 240px;
    max-height: 320px;
}

.chat-message {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
    animation: message-in 0.3s ease;
}

@keyframes message-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-message.bot {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border-bottom-left-radius: 4px;
}

.chat-message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--bg-dark);
    border-bottom-right-radius: 4px;
    font-weight: 500;
}

.chat-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    align-items: center;
}

.chat-form input,
.chat-form textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 0.6rem 0.8rem;
    font-family: var(--font-main);
    font-size: 0.9rem;
    outline: none;
}

.chat-form input:focus,
.chat-form textarea:focus {
    border-color: var(--primary);
}

.chat-form input {
    width: 35%;
}

.chat-form textarea {
    flex: 1;
    resize: none;
    min-height: 38px;
    max-height: 100px;
}

.chat-send {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary);
    border: none;
    color: var(--bg-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.chat-send:hover {
    transform: scale(1.05);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 9996;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 420px;
    max-width: calc(100vw - 2rem);
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

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

.modal-header {
    padding: 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--accent);
}

.modal-body {
    padding: 1.2rem;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.schedule-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.schedule-list a {
    width: 100%;
    justify-content: center;
}

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        margin-bottom: 1rem;
    }

    .about-actions {
        justify-content: center;
    }

    .info-grid {
        text-align: left;
    }
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.3rem;
    }

    .hero-meta {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .social-icons {
        justify-content: center;
    }

    .hero-bg {
        display: none;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-dark);
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

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

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

    .section-header h2 {
        font-size: 1.9rem;
    }

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

    .metric-card.large {
        grid-column: span 2;
    }

    .contact-info {
        text-align: center;
    }

    .contact-info .info-item {
        justify-content: center;
    }

    .contact-actions {
        justify-content: center;
    }

    .chat-box {
        width: calc(100vw - 2rem);
        right: 1rem;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.9rem;
    }

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

    .metric-card.large {
        grid-column: span 1;
    }

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

    .chat-form input {
        width: 30%;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}