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

:root {
    --primary: #6366f1;
    --secondary: #ec4899;
    --accent: #10b981;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--light);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(45deg, var(--dark), #1e293b);
}

.bg-animation::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-20px, -20px) rotate(0deg); }
    33% { transform: translate(20px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* Mobile Menu Toggle Button */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light);
    background: none;
    border: none;
    padding: 0.5rem;
    transition: all 0.3s ease;
    z-index: 1001;
}

.menu-toggle:hover {
    color: var(--primary);
    transform: scale(1.1);
}

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

.nav-links a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient 3s ease-in-out infinite;
    background-size: 300% 300%;
}

@keyframes gradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--gray);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

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

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

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

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

/* Sections */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 3px;
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--dark);
    border-radius: 17px;
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    object-position: center top;
    border-radius: 17px;
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.about-text p {
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--gray);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-10px);
    background: rgba(99, 102, 241, 0.15);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.skill-category h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.skill-bar {
    margin-bottom: 1rem;
}

.skill-bar span {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.progress {
    height: 8px;
    background: rgba(100, 116, 139, 0.3);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 4px;
    transition: width 2s ease;
    animation: fillProgress 2s ease-in-out;
}

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

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-image::before {
    opacity: 1;
}

.project-content {
    padding: 2rem;
    position: relative;
}

.project-content h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.project-content h4 a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.project-content h4 a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.project-content h4 a::after {
    content: '🔗';
    font-size: 0.9rem;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.project-content h4 a:hover::after {
    opacity: 1;
    transform: scale(1.1);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.tag {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.github-link {
    text-decoration: none;
}

.github-link:hover img {
    opacity: 1 !important;
    transform: scale(1.1);
}

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

.contact-form {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--accent);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(100, 116, 139, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 10px;
    color: var(--light);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    background: rgba(99, 102, 241, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    text-align: center;
    padding: 2rem;
    margin-top: 5rem;
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        z-index: 999;
    }

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

    .nav-links li {
        margin: 1.5rem 0;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
    }

    .nav-links.active li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav-links.active li:nth-child(5) { transition-delay: 0.5s; }

    .nav-links a {
        font-size: 1.2rem;
        padding: 1rem 2rem;
        border-radius: 10px;
        transition: all 0.3s ease;
    }

    .nav-links a:hover {
        background: rgba(99, 102, 241, 0.1);
        transform: translateX(10px);
    }

    .hero h1 {
        font-size: 3rem;
    }

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

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

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

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

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

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 4px;
}