:root {
    /* Light Theme Variables */
    --primary-color: #2C3E50;
    --secondary-color: #3498DB;
    --text-color: #2C3E50;
    --background-color: #E8F0FE;
    --card-background: rgba(255, 255, 255, 0.95);
    --gradient-1: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #3498DB;
    --secondary-color: #2C3E50;
    --text-color: #FFFFFF;
    --background-color: #121212;
    --card-background: rgba(30, 40, 50, 0.9);
    --gradient-1: linear-gradient(45deg, #00b4ff, #2C3E50);
    --neon-glow: 0 0 10px rgba(0, 180, 255, 0.7), 0 0 20px rgba(0, 180, 255, 0.5);
    --edge-glow: 0 0 3px #00b4ff;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, var(--background-color) 0%, #c3cfe2 100%);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: var(--transition);
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, rgba(44, 62, 80, 0.05) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(44, 62, 80, 0.05) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(44, 62, 80, 0.05) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(44, 62, 80, 0.05) 75%);
    background-size: 1000px 2000px;
    z-index: -2;
    pointer-events: none;
}

/* Particle Canvas Styling */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 1; /* Full opacity for space effect */
    transition: var(--transition);
}

.dark-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 5, 0.75); /* Dark but allows particle lights to show */
    z-index: -1;
    pointer-events: none;
}

/* Add a darker background */
body {
    background: #030305; /* Very dark background color for deep space effect */
    color: #e0f0ff; /* Lighter text color for better contrast */
}

/* Add subtle space-like gradient overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(3, 5, 15, 0.92), rgba(1, 2, 8, 0.95));
    z-index: -2;
    pointer-events: none;
}

/* Dark mode only - theme switch removed */

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

.wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    perspective: 900px;
}

.hero-content {
    text-align: center;
    transform-style: preserve-3d;
    animation: float 6s ease-in-out infinite;
}

.hero-image {
    width: 180px;
    height: 180px;
    justify-content: center;
    margin: 0 auto 30px;
    overflow: hidden;
    border-radius: 60%;
    transform: translateZ(50px);
    box-shadow: none; /* Removed shadow to fix visibility issue */
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text; /* Added for compatibility */
    -webkit-text-fill-color: transparent;
    font-size: 3.5rem;
    margin-bottom: 15px;
    position: relative;
}

[data-theme="dark"] .gradient-text {
    text-shadow: var(--edge-glow), 0 2px 4px rgba(0, 0, 0, 0.5);
    animation: flicker 5s infinite alternate;
    font-weight: 700;
}

@keyframes flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow: var(--edge-glow);
    }
    20%, 22%, 24%, 55% {
        text-shadow: none;
    }
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-color);
    transform: translateZ(30px);
}

.about {
    padding: 100px 0;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: transparent;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transform: translateZ(50px);
    position: relative;
    transition: all 0.5s ease;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(5px);
}

.about-content::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-1);
    border-radius: 22px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.about-content:hover {
    transform: translateZ(20px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border-color: rgba(100, 220, 255, 0.5);
}

.about-content:hover::before {
    opacity: 0.4;
}

[data-theme="dark"] .about-content::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 180, 255, 0.05);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    border-radius: 20px;
}

[data-theme="dark"] .about-content:hover::after {
    opacity: 1;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #e1e8f5; /* Brighter text to improve visibility on dark background */
    transform: translateZ(20px);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    background: linear-gradient(90deg, 
        rgba(60, 180, 255, 1) 0%,
        rgba(100, 220, 255, 1) 25%, 
        rgba(140, 255, 255, 1) 50%,
        rgba(100, 220, 255, 1) 75%, 
        rgba(60, 180, 255, 1) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text; /* Added for compatibility */
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    letter-spacing: 2px;
    filter: drop-shadow(0 0 15px rgba(0, 180, 255, 0.8));
    animation: sectionTitleGlow 8s linear infinite;
}

@keyframes sectionTitleGlow {
    0% {
        filter: drop-shadow(0 0 10px rgba(0, 180, 255, 0.6));
        background-position: 0% center;
    }
    50% {
        filter: drop-shadow(0 0 25px rgba(0, 220, 255, 0.9));
        background-position: 100% center;
    }
    100% {
        filter: drop-shadow(0 0 10px rgba(0, 180, 255, 0.6));
        background-position: 200% center;
    }
}

.projects {
    padding: 100px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    perspective: 1000px;
}

.project-card {
    background: transparent;
    border-radius: 15px;
    overflow: hidden;
    transform-style: preserve-3d;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateZ(20px) rotateX(10deg) rotateY(10deg);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2), var(--neon-glow);
    border: 1px solid rgba(0, 180, 255, 0.3);
}

[data-theme="dark"] .project-card {
    position: relative;
    border: 1px solid rgba(0, 180, 255, 0.1);
    transition: all 0.5s ease, border 0.3s ease;
}

[data-theme="dark"] .project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(100, 220, 255, 0.15);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

[data-theme="dark"] .project-card:hover::after {
    opacity: 1;
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-card h3 {
    padding: 20px;
    text-align: center;
    font-size: 1.2rem;
}

.contact {
    padding: 100px 0;
}

.contact-content {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-button {
    padding: 15px 30px;
    background: var(--gradient-1);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: var(--transition);
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.contact-button:hover {
    transform: translateZ(10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

[data-theme="dark"] .contact-button {
    box-shadow: var(--edge-glow);
}

[data-theme="dark"] .contact-button:hover {
    box-shadow: var(--neon-glow);
}

[data-theme="dark"] .contact-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.5) 0%, transparent 70%);
    transform: rotate(45deg);
    transition: all 0.8s ease;
    opacity: 0;
}

[data-theme="dark"] .contact-button:hover::before {
    opacity: 1;
    transform: rotate(45deg) translate(10%, 10%);
}

.skills {
    padding: 100px 0;
    perspective: 2000px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    transform-style: preserve-3d;
}

.skill-card {
    background: transparent;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transform-style: preserve-3d;
    transition: all 0.5s ease;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    position: relative;
    transform: translateZ(20px);
    border: 1px solid rgba(100,200,255,0.2);
    backdrop-filter: blur(5px);
    overflow: hidden;
}

[data-theme="dark"] .skill-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(100, 220, 255, 0.2);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

[data-theme="dark"] .skill-card:hover::after {
    opacity: 1;
}

.skill-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-1);
    border-radius: 22px;
    z-index: -1;
    transform: translateZ(-1px);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.skill-card:hover {
    transform: translateZ(20px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border-color: rgba(0, 180, 255, 0.3);
}

.skill-card:hover::before {
    opacity: 0.3;
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 25px;
    transform: translateZ(30px);
    display: inline-block;
    transition: transform 0.4s ease;
}

.skill-card:hover .skill-icon {
    transform: translateZ(40px) scale(1.1);
}

.skill-card h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    transform: translateZ(25px);
    position: relative;
    font-size: 1.4rem;
    font-weight: 600;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text; /* Added for compatibility */
    -webkit-text-fill-color: transparent;
}

.skill-card ul {
    list-style: none;
    padding: 0;
    transform: translateZ(20px);
}

.skill-card li {
    margin: 15px 0;
    color: var(--text-color);
    transition: all 0.3s ease;
    font-size: 1.1rem;
    position: relative;
    padding: 8px 0;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.skill-card:hover li {
    transform: translateZ(10px);
}

.skill-card li::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.skill-card:hover li::before {
    width: 50%;
}

.education {
    padding: 100px 0;
}

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

.education-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--gradient-1);
}

.education-card {
    background: transparent;
    border-radius: 15px;
    padding: 30px;
    margin: 30px 0;
    position: relative;
    width: calc(50% - 30px);
    transform-style: preserve-3d;
    transition: var(--transition);
    border: 1px solid rgba(100,200,255,0.1);
    backdrop-filter: blur(5px);
}

.education-card:nth-child(odd) {
    margin-left: auto;
}

.education-card:hover {
    transform: translateZ(20px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border-color: rgba(0, 180, 255, 0.3);
}

[data-theme="dark"] .education-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(100, 220, 255, 0.2);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

[data-theme="dark"] .education-card:hover::after {
    opacity: 1;
}

.education-year {
    background: var(--gradient-1);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 15px;
}

.education-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.education-card p {
    color: var(--text-color);
    margin: 5px 0;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .gradient-text {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .hero-content {
        padding: 0 20px;
    }

    .hero-image {
        width: 150px;
        height: 150px;
        margin-bottom: 20px;
    }

    .about-content {
        margin: 0 20px;
        padding: 30px;
    }

    .about-content:hover {
        transform: translateZ(40px) rotateX(3deg);
    }

    .skills-grid {
        grid-template-columns: 1fr;
        margin: 0 20px;
        gap: 25px;
    }

    .skill-card {
        padding: 25px 20px;
    }

    .skill-card:hover {
        transform: translateZ(30px) rotateX(5deg) rotateY(5deg);
    }

    .skill-icon {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }

    .skill-card h3 {
        font-size: 1.2rem;
    }

    .skill-card li {
        font-size: 1rem;
        margin: 10px 0;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        margin: 0 20px;
        gap: 25px;
    }

    .project-card:hover {
        transform: translateZ(15px) rotateX(5deg) rotateY(5deg);
    }

    .contact-button {
        width: calc(100% - 40px);
        text-align: center;
        margin: 10px 20px;
    }

    .education-timeline::before {
        left: 20px;
    }

    .education-card {
        width: calc(100% - 50px);
        margin-left: 50px !important;
        padding: 25px;
    }

    .education-card:hover {
        transform: translateZ(15px);
    }

    .theme-switch {
        top: 10px;
        right: 10px;
        padding: 8px;
    }

    .theme-switch-icon {
        font-size: 20px;
    }

    .floating-shapes {
        display: none; /* Hide the shape in mobile view to fix the blue circle issue */
    }

    #particle-canvas {
        opacity: 0.4; 
    }

    [data-theme="dark"] #particle-canvas {
        opacity: 0.6;
    }

    html {
        scroll-behavior: smooth;
    }

    .skill-card, .project-card, .education-card, .about-content {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
}

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

    .subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .about-content p {
        font-size: 1rem;
    }

    .skill-card, .project-card, .education-card {
        margin-bottom: 20px;
    }
}