/* Cyberpunk Theme for Yash's Portfolio */
:root {
    --primary-color: #00ffff;
    --secondary-color: #ff00ff;
    --text-color: #ffffff;
    --bg-color: #0a0a0a;
    --accent-color: #2d3436;
    --gradient-start: #00ffff;
    --gradient-end: #ff00ff;
    --card-bg: rgba(0, 0, 0, 0.5);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --section-padding: 5rem 2rem;
    --border-radius: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --card-shadow: 0 8px 32px 0 rgba(0, 255, 255, 0.2);
    --neon-shadow: 0 0 20px rgba(0, 255, 255, 0.5), 0 0 40px rgba(0, 255, 255, 0.3), 0 0 60px rgba(0, 255, 255, 0.2);
    --perspective: 2000px;
    --vr-depth: 1000px;
    --rotation-speed: 15s;
    --hover-lift: 150px;
    --glass-opacity: 0.1;
    --glass-radius: 12px;
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glass-backdrop: blur(15px);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), #0080ff);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #ff2a6d);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    perspective: var(--perspective);
    transform-style: preserve-3d;
    background: #000000;
    color: var(--text-color);
}

body {
    line-height: 1.6;
    color: var(--text-color);
    transform-style: preserve-3d;
    perspective: var(--perspective);
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-color) 0%, #000000 100%);
    position: relative;
    overflow-x: hidden;
}

canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 255, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.1) 0%, transparent 40%),
        linear-gradient(45deg, rgba(0, 255, 255, 0.05) 0%, rgba(255, 0, 255, 0.05) 100%);
    pointer-events: none;
    z-index: -1;
}

/* Glass Morphism Effect */
.glass-effect {
    background: rgba(0, 0, 0, var(--glass-opacity));
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border-radius: var(--glass-radius);
    border: var(--glass-border);
    box-shadow: var(--glass-shadow);
    transform-style: preserve-3d;
    transition: var(--transition);
}

.glass-effect:hover {
    border-color: rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    transform: translateZ(5px);
}

/* Navbar Styles */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    transform-style: preserve-3d;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: var(--transition);
    transform-style: preserve-3d;
    position: relative;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
}

.logo:hover {
    transform: translateZ(20px) rotateX(10deg) rotateY(10deg);
    text-shadow: var(--neon-shadow);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
    box-shadow: 0 0 10px var(--primary-color);
}

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

.nav-links a.active {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.nav-links a.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
}

.hero::after {
    content: '';
    position: absolute;
    inset: -50%;
    background: 
        linear-gradient(45deg, transparent 0%, rgba(0, 255, 255, 0.1) 50%, transparent 100%) repeat,
        linear-gradient(-45deg, transparent 0%, rgba(255, 0, 255, 0.1) 50%, transparent 100%) repeat;
    background-size: 200px 200px;
    animation: gridMove 20s linear infinite;
    transform: translateZ(-500px) rotateX(45deg);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    transform-style: preserve-3d;
    animation: heroFloat 10s ease-in-out infinite;
    text-align: center;
    max-width: 800px;
    padding: 3rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3), 0 0 60px rgba(255, 0, 255, 0.2);
}

.profile-container {
    margin-bottom: 2rem;
    transform-style: preserve-3d;
    perspective: var(--perspective);
}

.profile-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    box-shadow: var(--neon-shadow);
    transform-style: preserve-3d;
    transition: var(--transition);
    position: relative;
}

.profile-image::before,
.profile-image::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    animation: pulseGlow 2s ease-in-out infinite alternate;
}

.profile-image::after {
    animation-delay: -1s;
    border-color: var(--secondary-color);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform-style: preserve-3d;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    position: relative;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.location {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.contact-info {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.contact-info a {
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    padding: 0.7rem 1.2rem;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 2rem;
    border: 1px solid rgba(0, 255, 255, 0.3);
    backdrop-filter: blur(5px);
}

.contact-info a:hover {
    color: var(--primary-color);
    transform: translateY(-5px) translateZ(20px);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    border-color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: var(--transition);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 255, 255, 0.3);
    backdrop-filter: blur(5px);
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-5px) translateZ(30px) scale(1.2);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.7);
    border-color: var(--primary-color);
}

/* Section Styles */
section {
    padding: 5rem 2rem;
    margin-bottom: 2rem;
    opacity: 1 !important;
    transform: none !important;
    background: transparent;
    position: relative;
    z-index: 1;
}

section:last-of-type {
    margin-bottom: 0;
}

section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5));
    z-index: -1;
}

section:nth-child(even)::before {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

h2 i {
    font-size: 2rem;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.8);
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.2rem;
    line-height: 1.8;
    padding: 2.5rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 255, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.2);
    transform-style: preserve-3d;
    transition: var(--transition);
}

.about-content:hover {
    transform: translateZ(30px);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.4);
}

/* Project Cards and Items */
.project-card, .education-item, .experience-item, .achievement-item {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    transform-style: preserve-3d;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

.project-card:hover, .education-item:hover, .experience-item:hover, .achievement-item:hover {
    transform: translateZ(10px);
    box-shadow: 
        0 0 30px rgba(0, 255, 255, 0.4),
        0 0 60px rgba(255, 0, 255, 0.3);
    border-color: var(--primary-color);
}

.project-header h3, .education-item h4, .experience-item h3, .achievement-item h4 {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.tech-stack, .grade, .company {
    color: var(--secondary-color);
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.project-link {
    background: linear-gradient(135deg, var(--primary-color), rgba(0, 255, 255, 0.7));
    border: none;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.project-link:hover {
    background: linear-gradient(135deg, var(--secondary-color), rgba(255, 0, 255, 0.7));
    transform: translateY(-5px) translateZ(20px);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.6);
}

.video-link {
    background: linear-gradient(135deg, var(--secondary-color), rgba(255, 0, 255, 0.7));
}

.video-link:hover {
    background: linear-gradient(135deg, var(--primary-color), rgba(0, 255, 255, 0.7));
}

/* Skill items */
.skill-category {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    transform-style: preserve-3d;
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateZ(30px);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.4);
    border-color: var(--primary-color);
}

.skill-category h3 {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.skill-items span {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 0.8rem 1.5rem;
    border-radius: 2rem;
    color: var(--text-color);
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition);
    transform-style: preserve-3d;
}

.skill-items span:hover {
    transform: translateZ(30px) scale(1.1);
    box-shadow: 
        0 0 20px rgba(0, 255, 255, 0.5),
        0 0 40px rgba(255, 0, 255, 0.3);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Footer */
footer {
    margin-top: 2rem;
    padding: 3rem 2rem 1.5rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(0, 255, 255, 0.5);
    position: relative;
    z-index: 1;
    box-shadow: 0 -10px 30px rgba(0, 255, 255, 0.1);
}

footer::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 50px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    z-index: -1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
}

.footer-tagline {
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    max-width: 400px;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    padding-left: 1.2rem;
    font-size: 1.05rem;
}

.footer-links a::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
    text-shadow: 0 0 5px var(--primary-color);
}

.footer-links a:hover::before {
    color: var(--secondary-color);
    text-shadow: 0 0 5px var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 255, 255, 0.3);
    padding-top: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.copyright, .design-credit {
    font-size: 0.95rem;
    color: #aaa;
    text-shadow: 0 0 5px rgba(0, 255, 255, 0.3);
}

/* VR Button and Modal */
.vr-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    margin-bottom: env(safe-area-inset-bottom, 0);
    z-index: 1000;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    backdrop-filter: blur(5px);
    transform-style: preserve-3d;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    text-shadow: 0 0 5px var(--primary-color);
}

.vr-button:hover {
    transform: translateZ(10px);
    box-shadow: 0 0 20px var(--primary-color);
}

.vr-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.vr-modal.active {
    opacity: 1;
    visibility: visible;
}

.vr-modal-content {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 500px;
    text-align: center;
    position: relative;
    transform: translateY(-20px);
    transition: all 0.3s ease;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

.vr-modal.active .vr-modal-content {
    transform: translateY(0);
}

.vr-modal-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.8rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.vr-modal-body {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.vr-modal-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.vr-modal-button {
    padding: 0.8rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.vr-modal-button.primary {
    background: linear-gradient(135deg, var(--primary-color), rgba(0, 255, 255, 0.7));
    border: none;
    color: #000;
}

.vr-modal-button.secondary {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.vr-modal-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.vr-modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-tagline {
        margin: 0 auto 1.5rem;
    }
    
    .footer-links {
        align-items: center;
    }
    
    .footer-links a {
        padding-left: 0;
    }
    
    .footer-links a::before {
        display: none;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--secondary-color), var(--primary-color));
}

/* Animations */
@keyframes heroFloat {
    0%, 100% {
        transform: translateZ(0);
    }
    50% {
        transform: translateZ(30px);
    }
}

@keyframes gridMove {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 200px 200px;
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
        transform: translateZ(-20px) scale(1);
    }
    50% {
        box-shadow: 0 0 40px rgba(0, 255, 255, 0.8);
        transform: translateZ(-20px) scale(1.1);
    }
}

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

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

/* Initial load state */
.initial-load * {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
}

/* VR Mode styles */
.vr-mode {
    transform-origin: center center;
    transform-style: preserve-3d;
    transition: transform 0.5s ease-out;
}

/* Particles */
.particle {
    position: absolute;
    pointer-events: none;
    z-index: 1000;
}

/* Cyberpunk theme class */
.cyberpunk-theme {
    --primary-color: #00ffff;
    --secondary-color: #ff00ff;
}

/* Mobile menu button */
.mobile-menu-button {
    display: none;
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-size: 1.8rem;
    cursor: pointer;
    text-shadow: 0 0 10px var(--primary-color);
    z-index: 1001;
    position: relative;
    transition: transform 0.3s ease;
    padding: 0.5rem;
}

/* Media Queries for Responsive Design */
@media (max-width: 768px) {
    /* Mobile menu styles */
    .mobile-menu-button {
        display: block;
        position: absolute;
        left: 0.8rem;
        top: 50%;
        transform: translateY(-50%);
        font-size: 1.6rem;
        color: var(--primary-color);
        box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
        padding: 0.3rem;
        line-height: 1;
        z-index: 1002;
    }
    
    .mobile-menu-button:hover, 
    .mobile-menu-button:focus {
        color: var(--secondary-color);
        box-shadow: 0 0 12px rgba(255, 0, 255, 0.5);
    }
    
    .navbar {
        padding: 0.5rem 0;
        height: auto;
    }
    
    .nav-content {
        padding: 0 0.8rem;
        justify-content: center;
        position: relative;
        height: 3.2rem;
    }
    
    .logo {
        margin: 0;
        font-size: 1.7rem;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        padding: 0.5rem 0;
        gap: 0;
        border-bottom: 1px solid var(--primary-color);
        transform: translateY(-20px);
        opacity: 0;
        display: none;
        transition: transform 0.3s ease, opacity 0.3s ease;
        box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
        z-index: 1000;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-links li {
        width: 100%;
        text-align: center;
    }
    
    .nav-links a {
        display: block;
        padding: 0.8rem 1rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(0, 255, 255, 0.1);
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .nav-links a:hover, 
    .nav-links a.active {
        background: rgba(0, 255, 255, 0.1);
    }
    
    .nav-links li:last-child a {
        border-bottom: none;
    }
    
    /* Additional mobile styles */
    section {
        padding: 4rem 1rem;
    }
    
    .hero-content {
        padding: 2rem 1rem;
        margin: 0 1rem;
    }
    
    .profile-image {
        width: 150px;
        height: 150px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.2rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 0.8rem;
    }
}

/* Contact Section */
.contact {
    padding: 5rem 2rem;
    margin-bottom: 0;
    position: relative;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info-container,
.contact-form-container {
    padding: 2.5rem;
    border-radius: var(--border-radius);
    height: 100%;
    border: 1px solid rgba(0, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.5);
}

.contact-info-container h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.contact-info-container p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.3rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.contact-item h4 {
    margin-bottom: 0.3rem;
    color: var(--secondary-color);
}

.contact-item a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links-large {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.social-links-large a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--primary-color);
    color: var(--text-color);
    font-size: 1.2rem;
    transition: var(--transition);
    transform-style: preserve-3d;
}

.social-links-large a:hover {
    transform: translateZ(20px);
    background: rgba(0, 0, 0, 0.7);
    color: var(--primary-color);
    box-shadow: 0 0 15px var(--primary-color), 0 0 30px var(--secondary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 0.5rem;
    color: var(--text-color);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    margin-bottom: 0.5rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    background: rgba(0, 0, 0, 0.7);
}

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

.submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), rgba(0, 255, 255, 0.7));
    border: none;
    border-radius: 2rem;
    color: #000;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--secondary-color), rgba(255, 0, 255, 0.7));
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.7);
    transform: translateY(-5px);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.submit-btn i {
    font-size: 1rem;
}

/* Footer Sections */
.footer-section {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-items, .interest-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.language-items span, .interest-items span {
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 0.5rem;
    border: 1px solid rgba(0, 255, 255, 0.2);
    transition: var(--transition);
}

.language-items span:hover, .interest-items span:hover {
    background: rgba(0, 0, 0, 0.6);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

/* Form success message */
.form-message.success {
    padding: 1rem 1.5rem;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 0.5rem;
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    animation: fadeIn 0.5s forwards;
    font-weight: 500;
}

.form-message.success i {
    font-size: 1.2rem;
}

/* Form error message */
.form-message.error {
    padding: 1rem 1.5rem;
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid #ff0055;
    border-radius: 0.5rem;
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #ff0055;
    box-shadow: 0 0 20px rgba(255, 0, 0, 0.3);
    animation: fadeIn 0.5s forwards;
    font-weight: 500;
}

.form-message.error i {
    font-size: 1.2rem;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info-container,
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .contact-form-container {
        order: 2;
    }
    
    .contact-info-container {
        order: 1;
    }
    
    .social-links-large {
        justify-content: center;
    }
    
    .contact-item {
        align-items: center;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.8rem 1rem;
        font-size: 0.95rem;
    }
    
    .submit-btn {
        width: 100%;
        padding: 0.8rem 1.5rem;
    }
    
    h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    .contact {
        padding: 3rem 1rem;
    }
    
    /* Additional mobile improvements */
    .contact-form {
        gap: 1rem;
    }
    
    .contact-info-container h3 {
        font-size: 1.5rem;
        text-align: center;
    }
    
    .contact-info-container p {
        font-size: 1rem;
        text-align: center;
    }
    
    .contact-details {
        align-items: flex-start;
    }
    
    .form-message.success,
    .form-message.error {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    /* Make sure form messages are visible in viewport */
    .form-message {
        position: relative;
        z-index: 10;
    }
}

/* Languages Section */
.languages-grid, .interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.language-item {
    display: flex;
    flex-direction: column;
    padding: 2.5rem;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.language-icon {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
}

.language-details {
    margin-bottom: 1.5rem;
}

.language-details h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.language-details p {
    color: var(--secondary-color);
    font-size: 1rem;
}

.proficiency-meter {
    width: 100%;
    height: 8px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    overflow: hidden;
    margin-top: auto;
}

.proficiency-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 1.5s ease-in-out;
}

.proficiency-bar.native {
    width: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    box-shadow: 0 0 10px var(--primary-color);
}

.proficiency-bar.professional {
    width: 85%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    box-shadow: 0 0 10px var(--primary-color);
}

.proficiency-bar.beginner {
    width: 40%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    box-shadow: 0 0 10px var(--primary-color);
}

/* Interests Section */
.interest-item {
    padding: 2.5rem;
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.interest-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
    transition: var(--transition);
}

.interest-item:hover .interest-icon {
    transform: translateY(-10px) scale(1.2);
    color: var(--secondary-color);
}

.interest-item h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.interest-item p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
}

/* Animation for proficiency bars */
@keyframes loadBar {
    from { width: 0; }
}

/* Add this to responsive section */
@media (max-width: 768px) {
    .languages-grid, .interests-grid {
        grid-template-columns: 1fr;
    }
}

/* Research Papers Section */
.research {
    padding: 5rem 2rem;
    margin-bottom: 2rem;
    position: relative;
}

.research-item {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    margin-bottom: 2rem;
}

.research-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.institution {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.research-content {
    margin-top: 1.5rem;
}

.research-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1.5rem 0;
}

.research-topics span {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(0, 255, 255, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    transform-style: preserve-3d;
}

.research-topics span:hover {
    transform: translateZ(20px) scale(1.1);
    box-shadow: 
        0 0 15px rgba(0, 255, 255, 0.5),
        0 0 30px rgba(255, 0, 255, 0.3);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.paper-link {
    margin-top: 1.5rem;
}

.paper-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), rgba(0, 255, 255, 0.7));
    border: none;
    border-radius: 2rem;
    color: #000;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.paper-link a:hover {
    background: linear-gradient(135deg, var(--secondary-color), rgba(255, 0, 255, 0.7));
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.7);
    transform: translateY(-5px) translateZ(20px);
}

@media (max-width: 768px) {
    .research-item {
        padding: 1.5rem;
    }
    
    .research-item h3 {
        font-size: 1.3rem;
    }
    
    .research-topics {
        gap: 0.6rem;
    }
    
    .research-topics span {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}