:root {
    /* Color Palette - Dark Mode with Neon Accents */
    --bg-color: #0b0c10;
    --surface-color: rgba(31, 40, 51, 0.6);
    --surface-border: rgba(255, 255, 255, 0.1);
    
    --text-primary: #c5c6c7;
    --text-secondary: #8b929a;
    
    --accent-primary: #66fcf1;
    --accent-secondary: #45a29e;
    --accent-glow: rgba(102, 252, 241, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #66fcf1, #8a2be2);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Layout */
    --nav-height: 80px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: #66fcf1;
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: #8a2be2;
    bottom: -150px;
    right: -100px;
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.2); }
}

/* Utilities */
.glass-panel {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.heading {
    font-family: var(--font-heading);
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #8a2be2, #66fcf1);
    z-index: -1;
    transition: opacity var(--transition-smooth);
    opacity: 0;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.6);
}

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

.btn-secondary:hover {
    background: rgba(102, 252, 241, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: var(--transition-smooth);
}

.header.sticky {
    background: rgba(11, 12, 16, 0.8);
    backdrop-filter: blur(10px);
    padding: 15px 8%;
    border-bottom: 1px solid var(--surface-border);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.logo span {
    color: var(--accent-primary);
}

#menu-icon {
    font-size: 2.4rem;
    color: #fff;
    cursor: pointer;
    display: none;
}

.navbar a {
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    margin-left: 2.5rem;
    transition: var(--transition-fast);
    position: relative;
}

.navbar a:hover,
.navbar a.active {
    color: var(--accent-primary);
}

.navbar a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
}

.navbar a:hover::after,
.navbar a.active::after {
    width: 100%;
}

/* Sections */
section {
    min-height: 100vh;
    padding: 10rem 8% 4rem;
}

/* Home Section */
.home {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.home-content {
    flex: 1;
}

.home-content h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.home-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.home-content p {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.btn-box {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.home-sci {
    display: flex;
    gap: 1.5rem;
}

.home-sci a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 45px;
    height: 45px;
    background: transparent;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    font-size: 24px;
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.home-sci a:hover {
    background: var(--accent-primary);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-5px);
}

.home-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.img-wrapper {
    position: relative;
    width: 350px;
    height: 450px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(102, 252, 241, 0.2);
}

.img-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 4px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

.home-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    transition: transform 0.5s ease;
}

.img-wrapper:hover img {
    transform: scale(1.05);
}

/* About Section */
.about-container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about-img {
    flex: 1;
    display: flex;
    justify-content: center;
}

.about-img img {
    width: 300px;
    border-radius: 50%;
    border: 4px solid var(--accent-primary);
    box-shadow: 0 0 30px rgba(102, 252, 241, 0.3);
}

.about-content {
    flex: 1;
}

.about-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.about-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Read More Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 90%;
    max-width: 600px;
    padding: 2.5rem;
    transform: scale(0.8);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    font-family: var(--font-heading);
    color: var(--accent-primary);
}

.close-modal {
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.close-modal:hover {
    color: var(--accent-primary);
    transform: rotate(90deg);
}

.modal-body p {
    margin-bottom: 1rem;
}

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

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    width: 2px;
    height: 100%;
    background: var(--surface-border);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    top: 0;
    left: 12px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-glow);
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.5);
    background: #fff;
}

.timeline-content {
    padding: 2rem;
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    transform: translateX(10px);
    border-color: var(--accent-primary);
}

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

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

/* Skills Section */
.skills-container {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
}

.skill-category {
    flex: 1;
    min-width: 300px;
    padding: 2.5rem;
}

.skill-category h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #fff;
    text-align: center;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.skill-tag {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--surface-border);
    border-radius: 30px;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.skill-tag::before {
    content: attr(data-level);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-weight: bold;
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.skill-tag:hover {
    border-color: var(--accent-primary);
}

.skill-tag:hover::before {
    transform: translateY(0);
}

/* Projects Section */
.projects-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 3rem;
    padding: 0 2rem;
}

.project-card {
    max-width: 500px;
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 30px rgba(102, 252, 241, 0.1);
}

.project-img {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

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

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.project-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.project-content .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 10px 20px;
}

/* Contact Section */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
}

.input-group {
    position: relative;
    margin-bottom: 2rem;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 15px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--surface-border);
    color: #fff;
    font-size: 1rem;
    font-family: var(--font-primary);
    outline: none;
    transition: var(--transition-fast);
}

.input-group textarea {
    resize: none;
    height: 120px;
}

.input-group label {
    position: absolute;
    top: 15px;
    left: 0;
    color: var(--text-secondary);
    pointer-events: none;
    transition: var(--transition-fast);
}

.input-group input:focus,
.input-group textarea:focus {
    border-bottom-color: var(--accent-primary);
}

.input-group input:focus ~ label,
.input-group textarea:focus ~ label,
.input-group input:valid ~ label,
.input-group textarea:valid ~ label {
    top: -15px;
    font-size: 0.8rem;
    color: var(--accent-primary);
}

.submit-btn {
    width: 100%;
    cursor: pointer;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 8%;
    background: rgba(11, 12, 16, 0.9);
    border-top: 1px solid var(--surface-border);
}

.footer-iconTop a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
    background: var(--accent-primary);
    border-radius: 8px;
    color: var(--bg-color);
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-iconTop a:hover {
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-3px);
}

/* Animations */
.hidden, .show {
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.hidden {
    opacity: 0;
    transform: translateY(30px);
}

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

.hidden-card, .show-card {
    transition: opacity 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hidden-card {
    opacity: 0;
    transform: translateY(40px);
}

.show-card {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 991px) {
    .header { padding: 15px 5%; }
    section { padding: 8rem 5% 4rem; }
    .home { flex-direction: column-reverse; text-align: center; gap: 3rem; }
    .home-content h1 { font-size: 3rem; }
    .btn-box { justify-content: center; }
    .home-sci { justify-content: center; }
    .about-container { flex-direction: column; text-align: center; }
}

@media (max-width: 768px) {
    #menu-icon { display: block; }
    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 5%;
        background: rgba(11, 12, 16, 0.95);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--surface-border);
        display: none;
        flex-direction: column;
    }
    .navbar.active { display: flex; }
    .navbar a { margin: 1rem 0; text-align: center; }
}