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

:root {
    /* Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #10b981;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --light-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: var(--section-padding);
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.nav-brand a {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-brand .highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-description {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.btn {
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 16px;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

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

.image-placeholder {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 200px;
    color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

/* ===== Section Title ===== */
.section-title {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

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

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--light-bg);
    border-radius: 12px;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.skill-category {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 12px;
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.skill-category h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: var(--dark-bg);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
}

/* ===== Projects Section ===== */
.projects {
    background: var(--darker-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--light-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: rgba(255, 255, 255, 0.3);
}

.project-content {
    padding: 30px;
}

.project-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.tag {
    background: var(--dark-bg);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-link {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.project-card.coming-soon {
    opacity: 0.7;
}

.project-card.coming-soon .project-image {
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--dark-bg) 100%);
}

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

.contact-text {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 60px;
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: left;
}

.contact-method {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 12px;
    display: flex;
    gap: 20px;
    align-items: center;
    transition: var(--transition);
}

.contact-method:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.contact-method i {
    font-size: 32px;
    color: var(--primary-color);
}

.contact-method h4 {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.contact-method a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-method a:hover {
    color: var(--primary-color);
}

/* ===== Footer ===== */
.footer {
    background: var(--darker-bg);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 20px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .image-placeholder {
        width: 300px;
        height: 300px;
        font-size: 150px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 30px 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 15px 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 20px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}