/* CSS Reset and Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --accent-blue: #00d4ff;
    --accent-cyan: #00ffff;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --gradient: linear-gradient(135deg, #00d4ff 0%, #00ffff 100%);
    --card-bg: rgba(26, 26, 26, 0.8);
    --border-color: rgba(0, 212, 255, 0.2);
    --shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation Styles */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

nav.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: var(--gradient);
    transition: var(--transition);
    transform: translateX(-50%);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        var(--primary-bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(0,212,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(10px, 10px); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    background: var(--gradient);
    padding: 4px;
    animation: float 3s ease-in-out infinite;
}

.profile-image img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-blue);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero .tagline {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    animation: fadeInUp 1s ease 0.4s both;
    font-style: italic;
}

.hero .subtitle {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.5s both;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
}

.btn-secondary:hover {
    background: var(--accent-blue);
    color: var(--primary-bg);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: 5rem 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

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

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-item:last-child {
    margin-bottom: 0;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
}

.skill-level {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.skill-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient);
    border-radius: 3px;
    animation: fillBar 2s ease-in-out;
    transition: width 0.3s ease;
}

@keyframes fillBar {
    from { width: 0; }
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, #2a2a2a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-blue);
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.project-card:hover .project-image::before {
    left: 100%;
}

.project-content {
    padding: 2rem;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent-blue);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-blue);
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: var(--transition);
}

.tag:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

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

.project-links a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.1);
}

.project-links a:hover {
    color: var(--accent-cyan);
    transform: translateX(3px);
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent-blue);
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.contact-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.contact-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow);
}

.contact-item i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Footer */
footer {
    background: var(--secondary-bg);
    padding: 3rem 0 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border-radius: 50%;
    color: var(--accent-blue);
    font-size: 1.2rem;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-blue);
    color: var(--primary-bg);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-note {
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Scroll Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content {
        padding: 0 1rem;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }

    section {
        padding: 3rem 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-content {
        padding: 1.5rem;
    }

    .project-links {
        flex-direction: column;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-item {
        padding: 1.5rem;
    }

    .social-links {
        gap: 0.8rem;
    }

    .social-links a {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }

    .hero .subtitle {
        font-size: 0.9rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .skill-category {
        padding: 1.5rem;
    }

    .project-card {
        margin: 0 -1rem;
        border-radius: 10px;
    }

    .project-image {
        height: 150px;
        font-size: 2rem;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }
}

/* High DPI and Retina Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .profile-image {
        box-shadow: 0 0 0 2px var(--accent-blue);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Dark Mode Support (if system prefers dark) */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-bg: #0a0a0a;
        --secondary-bg: #1a1a1a;
        --text-primary: #ffffff;
        --text-secondary: #b0b0b0;
    }
}

/* Print Styles */
@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    nav {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .profile-image {
        animation: none;
    }
    
    section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
    
    .btn {
        border: 1px solid black;
        background: white;
        color: black;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
}

/* Selection Styles */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
}