/* ==========================================================================
   CSS Variables & Theme Configuration
   ========================================================================== */
:root {
    --bg-color: #050505;
    --surface-color: rgba(255, 255, 255, 0.03);
    --surface-border: rgba(255, 255, 255, 0.08);
    --primary-color: #00f0ff;
    --secondary-color: #ff003c;
    --accent-color: #7000ff;
    
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    --glow-primary: 0 0 20px rgba(0, 240, 255, 0.5);
    --glow-secondary: 0 0 20px rgba(255, 0, 60, 0.5);
    
    --font-main: 'Poppins', sans-serif;
    --transition-fast: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Scroll Progress Line */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    z-index: 9999;
}
.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    width: 0%;
    box-shadow: var(--glow-primary);
}

/* Globals & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 100px 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.highlight {
    color: var(--primary-color);
    text-shadow: var(--glow-primary);
}

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

/* ==========================================================================
   Utility Classes (Glassmorphism & Buttons)
   ========================================================================== */
.glass-panel {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-panel:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: 0 15px 35px 0 rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(0, 240, 255, 0.05);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    outline: none;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

.btn-primary {
    background: var(--primary-color);
    color: #000;
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
    color: #000;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: #000;
    box-shadow: var(--glow-primary);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-link {
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

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

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-fast);
    backdrop-filter: blur(0px);
    background: transparent;
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-border);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.neon-dot {
    color: var(--primary-color);
    text-shadow: var(--glow-primary);
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
    box-shadow: var(--glow-primary);
}

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

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

.menu-icon {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding-top: 150px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    z-index: 0;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-color);
    top: -100px;
    left: -100px;
    animation: drift 20s infinite alternate;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--primary-color);
    bottom: 20%;
    right: -50px;
    animation: drift 15s infinite alternate-reverse;
}

@keyframes drift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero .title {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #a0a0a0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .roles {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero .intro {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.profile-card {
    padding: 3rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--surface-color), rgba(255,255,255,0.1));
    border: 2px solid var(--surface-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
    position: relative;
}

.profile-image::before {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, var(--primary-color), var(--accent-color), var(--primary-color));
    z-index: -1;
    animation: spin 5s linear infinite;
    opacity: 0.5;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.profile-icon {
    font-size: 4rem;
    color: var(--text-secondary);
}

.tagline {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.social-mini {
    display: flex;
    gap: 1rem;
}

.social-mini a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--surface-border);
}

.social-mini a:hover {
    background: var(--primary-color);
    color: #000;
}

.about-info {
    padding: 3rem;
}

.about-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.about-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.traits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}

.trait {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 500;
}

.trait i {
    color: var(--primary-color);
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skill-category {
    padding: 2rem;
    height: 100%;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-header i {
    font-size: 1.8rem;
    color: var(--primary-color);
    background: rgba(0, 240, 255, 0.1);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
}

.category-header h3 {
    font-size: 1.2rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 10px;
    width: 0; /* Animated later by JS */
    transition: width 1.5s cubic-bezier(0.1, 0.5, 0.1, 1);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.tag:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.1);
}

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

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

.project-img-wrapper {
    position: relative;
    height: 220px;
    width: 100%;
    overflow: hidden;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #111, #1a1a1a);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    gap: 1rem;
    transition: transform var(--transition-slow);
}

.img-placeholder i {
    font-size: 3rem;
    opacity: 0.5;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(5, 5, 5, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

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

.project-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary-color);
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-links {
    display: flex;
    gap: 1.5rem;
    margin-top: auto;
    border-top: 1px solid var(--surface-border);
    padding-top: 1.5rem;
}

/* ==========================================================================
   Internship Section
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    height: 100%;
    width: 2px;
    background: var(--surface-border);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

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

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 3px solid var(--primary-color);
    box-shadow: var(--glow-primary);
}

.timeline-content {
    padding: 2rem;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.company {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.gallery-item {
    overflow: hidden;
}

.gallery-img-wrapper {
    position: relative;
    padding-top: 60%; /* Aspect ratio indicator */
}

.gallery-img-wrapper .img-placeholder {
    position: absolute;
    inset: 0;
    background: #111;
}

.gallery-info {
    padding: 1.5rem;
}

.gallery-info h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.gallery-actions {
    display: flex;
    justify-content: space-between;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
    display: flex;
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-info, .contact-form {
    padding: 3rem;
}

.contact-info h3, .contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
}

.icon-box {
    width: 45px;
    height: 45px;
    background: rgba(0, 240, 255, 0.1);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.info-item h4 {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.info-item a {
    color: var(--text-primary);
    font-weight: 600;
}

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

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}

.contact-form .btn {
    width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--surface-border);
    background: var(--bg-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

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

.footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media screen and (max-width: 992px) {
    .hero .title { font-size: 4rem; }
    .about-grid, .contact-wrapper { grid-template-columns: 1fr; }
    .about-info, .profile-card, .contact-info, .contact-form { padding: 2rem; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: 1fr; }
}

@media screen and (max-width: 768px) {
    .menu-icon { display: block; }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        background: rgba(5, 5, 5, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        transition: 0.4s ease;
        border-left: 1px solid var(--surface-border);
    }
    
    .nav-links.active { right: 0; }
    
    .hero .title { font-size: 3rem; }
    .hero .roles { font-size: 1.2rem; }
    .hero .intro { font-size: 1rem; }
    .hero-cta { flex-direction: column; padding: 0 1rem; }
    
    .section { padding: 80px 0; }
    
    .timeline { padding-left: 10px; }
    .timeline::before { left: 30px; }
    .timeline-dot { left: 21px; }
    .timeline-item { padding-left: 50px; }
    .skills-grid { grid-template-columns: 1fr; }
}