:root {
    --primary-color: #21D4FD;
    --primary-gradient: linear-gradient(120deg, #21D4FD, #B721FF);
    --secondary-color: #B721FF;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --white: #ffffff;
    --black: #000000;
    --gray-light: #e1e1e1;
    --gray: #999;
    --gray-dark: #555;
    
    /* Dark Mode Colors */
    --dark-bg: #1a1a2e;
    --dark-secondary: #16213e;
    --dark-tertiary: #0f3460;
    --dark-text: #e1e1e1;
    
    /* Font Family */
    --font-primary: 'Poppins', sans-serif;
    --font-code: 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 50%;
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Box Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-inset: inset 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Dark Mode Theme */
.dark-mode {
    --text-color: var(--dark-text);
    --bg-color: var(--dark-bg);
    --gray-light: var(--dark-tertiary);
    --gray: #6b7280;
    --gray-dark: #9ca3af;
    --white: var(--dark-secondary);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
}

section {
    padding: var(--space-lg) 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--space-lg);
    position: relative;
    color: var(--text-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
}

/* Custom Cursor */
.cursor-follower {
    position: fixed;
    width: 30px;
    height: 30px;
    background: rgba(33, 212, 253, 0.3);
    border-radius: var(--radius-full);
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s;
    transform: translate(-50%, -50%);
    display: none;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-medium);
    border: none;
    outline: none;
}

.btn.primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Header and Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
}

.dark-mode header {
    background-color: rgba(26, 26, 46, 0.95);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px var(--space-md);
}

.logo {
    font-family: var(--font-code);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}

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

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-links a {
    position: relative;
    font-weight: 500;
}

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

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

.dark-mode-toggle {
    cursor: pointer;
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
}

.dark-mode-toggle:hover {
    transform: rotate(30deg);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 80px;
}

.hero-content {
    flex: 1;
    padding-right: var(--space-md);
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.typing {
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
    color: var(--gray-dark);
}

.cta-buttons {
    display: flex;
    gap: var(--space-sm);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.code-container {
    width: 100%;
    background-color: #1e1e3f;
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

.code-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30px;
    background: #2d2b55;
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
}

.code-container::after {
    content: '• • •';
    position: absolute;
    top: 7px;
    left: 15px;
    font-size: 18px;
    color: #ff5370;
    letter-spacing: 5px;
}

.cpp-code {
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: #a9b7c6;
    line-height: 1.5;
    margin-top: 20px;
    display: block;
    overflow-x: auto;
    white-space: pre;
}

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

/* About Section */
.about {
    background-color: var(--white);
    padding: var(--space-xl) var(--space-lg);
}

.about-content {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--space-lg);
    align-items: center;
}

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

.hexagon {
    position: relative;
    width: 300px;
    height: 300px;
    overflow: hidden;
    transform: rotate(30deg);
}

.hex-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('/api/placeholder/400/400') center/cover;
    transform: rotate(-30deg) scale(1.2);
    transition: transform var(--transition-medium);
}

.hexagon:hover .hex-bg {
    transform: rotate(-30deg) scale(1.3);
}

.about-text {
    flex: 1.5;
}

.about-text p {
    margin-bottom: var(--space-md);
    color: var(--gray-dark);
}

.stats {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-lg);
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.stat p {
    font-size: 0.9rem;
    color: var(--gray);
    margin: 0;
}

/* Skills Section */
.skills {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-color);
}

.skills-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--text-color);
    position: relative;
    display: inline-block;
}

.skill-category h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary-gradient);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.skill-bar {
    height: 8px;
    background-color: var(--gray-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width 1.5s ease;
    width: 0;
}

.skill-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-sm);
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-icon:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.skill-icon i {
    font-size: 2rem;
    margin-bottom: 8px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.skill-icon span {
    font-size: 0.8rem;
    color: var(--gray-dark);
}

/* Projects Section */
.projects {
    background-color: var(--white);
    padding: var(--space-xl) var(--space-lg);
}

.projects-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.project-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    height: 200px;
    background: url('/api/placeholder/400/200') center/cover;
    position: relative;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

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

.project-info {
    padding: var(--space-md);
}

.project-info h3 {
    font-size: 1.2rem;
    margin-bottom: var(--space-xs);
    color: var(--text-color);
}

.project-info p {
    font-size: 0.9rem;
    color: var(--gray-dark);
    margin-bottom: var(--space-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    font-size: 0.8rem;
    padding: 4px 10px;
    background: var(--gray-light);
    color: var(--gray-dark);
    border-radius: var(--radius-full);
}

.view-more {
    text-align: center;
    margin-top: var(--space-lg);
}

/* Contact Section */
.contact {
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-color);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.contact-item i {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: var(--white);
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    position: relative;
}

.form-group label {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 0.9rem;
    color: var(--gray);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    font-size: 1rem;
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-sm);
    background-color: transparent;
    color: var(--text-color);
    transition: border var(--transition-fast);
}

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

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:valid + label,
.form-group textarea:valid + label {
    top: -10px;
    left: 5px;
    font-size: 0.8rem;
    background-color: var(--bg-color);
    padding: 0 5px;
    color: var(--primary-color);
}

.form-highlight {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-fast);
}

.form-group input:focus ~ .form-highlight,
.form-group textarea:focus ~ .form-highlight {
    width: 100%;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--space-lg);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    display: block;
    width: 70px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 10px auto 0;
    border-radius: var(--radius-full);
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-fast);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.scrolled {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.bracket {
    color: var(--primary-color);
}

.name {
    margin: 0 5px;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-links a {
    position: relative;
    padding: 5px 0;
}

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

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

.dark-mode-toggle {
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-fast);
}

.dark-mode-toggle:hover {
    background-color: var(--gray-light);
}

.dark-mode .dark-mode-toggle i.fa-moon {
    display: none;
}

.dark-mode-toggle i.fa-sun {
    display: none;
}

.dark-mode .dark-mode-toggle i.fa-sun {
    display: block;
}

/* Footer */
footer {
    background-color: var(--white);
    padding: var(--space-lg) var(--space-lg) var(--space-md);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--gray-light);
    margin-bottom: var(--space-md);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background-color: var(--gray-light);
    color: var(--gray-dark);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--primary-gradient);
    color: var(--white);
    transform: translateY(-5px);
}

.footer-nav {
    display: flex;
    gap: var(--space-md);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    font-size: 0.9rem;
    color: var(--gray);
}

.footer-bottom i.fa-heart {
    color: #ff2e63;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

.btn.primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(33, 212, 253, 0.3);
}

.btn.primary:hover {
    box-shadow: 0 7px 25px rgba(33, 212, 253, 0.5);
    transform: translateY(-3px);
}

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

.btn.secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* Cursor Follower */
.cursor-follower {
    position: fixed;
    width: 30px;
    height: 30px;
    background: rgba(33, 212, 253, 0.2);
    border-radius: var(--radius-full);
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s;
    transform: translate(-50%, -50%);
    display: none;
}

/* Media Queries */
@media (max-width: 1024px) {
    html {
        font-size: 14px;
    }
    
    .hero {
        flex-direction: column;
        height: auto;
        padding: var(--space-lg) var(--space-md);
        margin-top: 120px;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: var(--space-lg);
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--space-xs);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .projects-container {
        grid-template-columns: 1fr;
    }
    
    .stat {
        margin-bottom: var(--space-sm);
    }
    
    .stats {
        flex-direction: column;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 1s ease forwards;
}

/* Scroll Reveal Animation */
.reveal {
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease;
}

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

/* Typing Animation */
.typing::after {
    content: '|';
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}