/* =========================================
   CSS Variables & Theming
   ========================================= */
:root {
    /* Color Palette - Dark Theme */
    --clr-bg: rgba(3, 7, 18, 0.85); /* Darkened so main text is readable */
    --clr-bg-alt: rgba(15, 23, 42, 0.88);
    --clr-text: #f8fafc;
    --clr-text-muted: #94a3b8;
    
    /* Accents - Neon Blue to Purple */
    --clr-primary: #3b82f6;
    --clr-primary-hover: #2563eb;
    --clr-secondary: #8b5cf6;
    
    --gradient-primary: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
    --gradient-text: linear-gradient(135deg, #60a5fa, #c084fc);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-hover: rgba(255, 255, 255, 0.06);
    
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for sticky nav */
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-padding {
    padding: 6rem 0;
}

.text-center {
    text-align: center;
}

.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }

/* Text Gradient Utility */
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =========================================
   Glassmorphism Utilities
   ========================================= */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition);
}

.glass-card:hover {
    background: var(--glass-hover);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--clr-text);
    border: 1px solid var(--clr-primary);
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.btn-primary-sm {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
}

.btn-primary-sm:hover {
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-block {
    display: block;
    width: 100%;
}

/* =========================================
   Navigation
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(3, 7, 18, 0.85); /* Darker backdrop */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a:not(.btn-primary-sm) {
    font-weight: 500;
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    position: relative;
}

.nav-links a:not(.btn-primary-sm):hover {
    color: var(--clr-text);
}

.nav-links a:not(.btn-primary-sm)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-links a:not(.btn-primary-sm):hover::after {
    width: 100%;
}

/* Hamburger Menu for Mobile */
.hamburger {
    display: none;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0.5rem;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--clr-text);
    margin: 5px 0;
    transition: var(--transition);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background-color: transparent;
    overflow: hidden;
}

.interactive-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background-color: #030712; /* Canvas baseline dark background */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(3, 7, 18, 0.98) 0%, rgba(3, 7, 18, 0.4) 50%, transparent 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero .subtitle {
    font-family: var(--font-heading);
    color: var(--clr-primary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 5rem);
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

/* =========================================
   Section Titles
   ========================================= */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
}

/* =========================================
   About Section
   ========================================= */
.about {
    background: var(--clr-bg-alt);
    position: relative;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    color: var(--clr-text-muted);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.timeline {
    margin-top: 1rem;
}

.timeline li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--clr-text-muted);
}

.timeline li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--clr-primary);
    box-shadow: 0 0 10px var(--clr-primary);
}

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

.skill-category .icon-wrapper {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.skill-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--clr-text-muted);
}

.skill-list li:last-child {
    border-bottom: none;
}

.software-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    mt: 1rem;
}

.tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.tag:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--clr-primary);
    color: white;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-img {
    height: 250px;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.project-card:hover .project-img img {
    transform: scale(1.05);
}

.project-info {
    padding: 2rem;
    flex-grow: 1;
}

.project-info p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

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

.project-tags span {
    font-size: 0.8rem;
    color: var(--clr-primary);
    background: rgba(59, 130, 246, 0.1);
    padding: 0.2rem 0.8rem;
    border-radius: 50px;
}

/* =========================================
   Services Section
   ========================================= */
.services {
    background: var(--clr-bg-alt);
}

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

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.service-card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

/* =========================================
   Contact Section
   ========================================= */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item .icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.2rem;
}

.contact-item p, .contact-item a {
    color: var(--clr-text-muted);
}

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

.social-links {
    margin-top: 3rem;
}

.social-links h4 {
    margin-bottom: 1rem;
}

.social-btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-right: 0.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.social-btn.youtube {
    background: rgba(255, 0, 0, 0.1);
    color: #ff0000;
    border: 1px solid rgba(255, 0, 0, 0.2);
}

.social-btn.youtube:hover {
    background: #ff0000;
    color: white;
}

.social-btn.behance {
    background: rgba(0, 87, 255, 0.1);
    color: #0057ff;
    border: 1px solid rgba(0, 87, 255, 0.2);
}

.social-btn.behance:hover {
    background: #0057ff;
    color: white;
}

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

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--clr-text);
    font-family: var(--font-body);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* =========================================
   Footer
   ========================================= */
footer {
    padding: 2rem 0;
    background: var(--clr-bg);
    border-top: 1px solid var(--glass-border);
    color: var(--clr-text-muted);
    font-size: 0.9rem;
}

/* =========================================
   Animations Handled by AOS Library
   ========================================= */

/* =========================================
   Popup Modal
   ========================================= */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--clr-bg-alt);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.popup-overlay.active .popup-content {
    transform: translateY(0);
}

.popup-icon {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 1.5rem;
}

.popup-content h3 {
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.popup-content p {
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
}

/* =========================================
   Responsive Media Queries
   ========================================= */
@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .logo {
        font-size: 1.2rem;
        max-width: 75%;
        overflow-wrap: break-word;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(3, 7, 18, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: block;
        z-index: 1001; /* Above mobile menu */
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}