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

:root {
    /* Color Palette */
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --accent-color: #ff6b6b;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-dark: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 100%);
    
    /* Dark Theme Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    --border-radius: 20px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xl: clamp(3rem, 8vw, 6rem);
    --font-size-lg: clamp(2rem, 5vw, 3rem);
    --font-size-md: clamp(1.2rem, 3vw, 1.5rem);
    --font-size-sm: 1rem;
    
    /* Animations */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
}

html {
    scroll-behavior: smooth;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: var(--transition-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo .logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition-fast);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    z-index: -2;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-accent);
    opacity: 0.1;
    animation: float 20s infinite linear;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 20%;
    animation-delay: 5s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 60%;
    animation-delay: 10s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    top: 10%;
    right: 10%;
    animation-delay: 15s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-30px) rotate(120deg);
    }
    66% {
        transform: translateY(30px) rotate(240deg);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 80vh;
}

.hero-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
    animation: slideUp 1s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

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

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeIn 1s ease 0.8s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.btn {
    padding: 15px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(79, 172, 254, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
}

.btn-secondary:hover {
    background: var(--glass-border);
    transform: translateY(-3px);
}

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

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: var(--gradient-accent);
    border-radius: 50%;
    opacity: 0.2;
    filter: blur(40px);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.developer-avatar {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-color);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease 2s forwards;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--gradient-accent);
    position: relative;
    animation: bounce 2s infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 8px solid var(--primary-color);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Section Styles */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Skills Section */
.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition-medium);
}

.skill-card:hover::before {
    transform: scaleX(1);
}

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

.skill-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.skill-level {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 4px;
    width: 0;
    transition: width 1s ease;
}

.skill-percentage {
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 60px;
}

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

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    backdrop-filter: blur(20px);
    transition: var(--transition-medium);
    position: relative;
}

.project-card.featured {
    grid-column: span 1;
}

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

.project-image {
    position: relative;
    height: 200px;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.project-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3rem;
    color: var(--primary-color);
    background: var(--gradient-dark);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

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

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    backdrop-filter: blur(20px);
    transition: var(--transition-fast);
}

.project-link:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    padding: 0.3rem 0.8rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text .section-header {
    text-align: left;
    margin-bottom: 2rem;
}

.about-description p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-highlights {
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.highlight-item h4 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.highlight-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-card {
    position: relative;
    width: 300px;
    height: 400px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 450px;
    background: var(--gradient-accent);
    border-radius: var(--border-radius);
    opacity: 0.1;
    filter: blur(40px);
    animation: pulse 3s ease-in-out infinite;
}

.about-avatar {
    width: 120px;
    height: 120px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    backdrop-filter: blur(20px);
    animation: floatIcon 4s ease-in-out infinite;
    animation-delay: var(--delay);
}

.floating-icon:nth-child(1) {
    top: 20%;
    left: 20%;
}

.floating-icon:nth-child(2) {
    top: 30%;
    right: 20%;
}

.floating-icon:nth-child(3) {
    bottom: 30%;
    left: 15%;
}

.floating-icon:nth-child(4) {
    bottom: 20%;
    right: 15%;
}

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

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(20px);
    text-align: center;
    transition: var(--transition-fast);
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: white;
}

.contact-card h3 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-card p {
    color: var(--text-secondary);
}

.contact-form {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(20px);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-family);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: -0.5rem;
    left: 0.5rem;
    font-size: 0.8rem;
    color: var(--primary-color);
    background: var(--bg-primary);
    padding: 0 0.5rem;
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    backdrop-filter: blur(20px);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

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

.footer p {
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition-medium);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

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

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

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

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

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 4rem);
    }

    .section-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 0 15px;
        --section-padding: 60px 0;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .project-card {
        margin: 0 10px;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-accent);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Loading Animation */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.loading {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}