/*
 * Portfolio Stylesheet - Jinzurei
 * Created: October 2025
 * Last Updated: October 12, 2025
 * 
 * Technologies:
 * - CSS3 Grid & Flexbox layouts
 * - Glassmorphism with backdrop-filter
 * - CSS animations and transforms
 * - Mobile-first responsive design
 * - WCAG 2.1 AA accessibility standards
 * 
 * @fileoverview Main stylesheet for portfolio website
 * @author Jinzurei
 */

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

html {
    background-color: #000000; /* Fallback black background */
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    overflow-x: hidden;
    background-color: transparent; /* Allow shader to show through */
}

/* Screen Reader Only - Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip to Main Content Link - Keyboard Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #007bff;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    font-weight: bold;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

/* Global Focus Styles for Keyboard Navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Remove default outline but keep focus-visible */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
    outline: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.9);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo:hover {
    color: #007bff;
}

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

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #007bff;
}

/* Mobile menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    transition: transform 0.3s ease;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: -1;
}

/* Main overlay content */
.hero-overlay-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 40px 30px;
    backdrop-filter: blur(10px);
    text-align: center;
    animation: fadeInUp 1s ease-out;
    z-index: 10;
}

.hero-nav {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-nav-link {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: all 0.3s ease;
    padding: 5px 10px;
    border-radius: 5px;
}

.hero-nav-link:hover {
    color: #007bff;
    background: rgba(255, 255, 255, 0.1);
}

.hero-overlay-content {
    animation: fadeIn 1.5s ease-out 0.5s both;
}

.hero-overlay-title {
    font-size: 4rem;
    font-weight: bold;
    color: white;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.hero-overlay-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0;
    font-weight: 300;
}

/* Alternative hero content (hidden) */
.hero-content {
    display: none;
    text-align: center;
    color: white;
    z-index: 5;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #007bff;
    color: white;
    border-color: #007bff;
}

.btn-primary:hover {
    background: transparent;
    border-color: #007bff;
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #333;
}

.btn-github {
    background: #6f42c1;
    color: white;
    border-color: #6f42c1;
}

.btn-github:hover {
    background: transparent;
    border-color: #6f42c1;
    color: #6f42c1;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    display: block;
    width: 30px;
    height: 30px;
    border: 2px solid white;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    text-decoration: none;
    transition: border-color 0.3s ease;
}

.scroll-arrow:hover {
    border-color: #007bff;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #e0e0e0;
}

/* About */
/* About Section Grid Layout */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 350px 1fr;
    grid-template-rows: auto 1fr;
    gap: 2rem 3rem;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.about-image {
    grid-row: 1 / 3;
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.about-title {
    grid-column: 2;
    grid-row: 1;
    margin-bottom: 0;
    display: flex;
    align-items: center;
}

.profile-picture {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    object-fit: cover;
    border: 2px solid #555;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    background: #333333;
    padding: 0;
}

.profile-picture:hover {
    animation: profileGlitch 0.6s ease-in-out;
    box-shadow: 0 15px 40px rgba(0, 123, 255, 0.2);
}

.about-text {
    grid-column: 2;
    grid-row: 2;
    text-align: left;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #b0b0b0;
}

/* Portfolio */
.portfolio-section {
    background: rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

.portfolio-item {
    background: rgba(0, 0, 0, 0.85);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    opacity: 0;
    transform: translateY(50px);
    position: relative;
}

.portfolio-item::before,
.portfolio-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 10px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Add more pseudo-elements using CSS tricks */
.portfolio-item::before {
    border: 3px solid #ff0040;
    transform: translate(-3px, -3px) scale(1.04);
    z-index: 1;
}

.portfolio-item::after {
    border: 3px solid #0080ff;
    transform: translate(3px, 3px) scale(1.04);
    z-index: 2;
}

/* Create additional glitch layers using box-shadow */
.portfolio-item:hover::before,
.portfolio-item:hover::after {
    opacity: 1;
    animation: intenseGlitchWarp 0.4s ease-in-out infinite;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.4),
        inset 0 0 0 2px #00ff80,
        inset 2px 2px 0 2px #ff0040,
        inset -2px -2px 0 2px #0080ff,
        4px 4px 0 1px #00ff80,
        -4px -4px 0 1px #ff0040,
        6px -6px 0 1px #0080ff,
        -6px 6px 0 1px #00ff80;
    border: 2px solid #00ff80;
    animation: cardGlitchColors 0.3s ease-in-out infinite;
}

.portfolio-item.glitch-in {
    animation: glitchReveal 1s ease-out forwards;
}

/* ===== ANIMATION: Portfolio Card Hover Glitch ===== */
@keyframes intenseGlitchWarp {
    0% {
        transform: translate(-3px, -3px) scale(1.04) skew(-1deg);
        border-color: #ff0040;
        opacity: 1;
    }

    8% {
        transform: translate(5px, -2px) scale(1.08) skew(3deg);
        border-color: #00ff80;
        opacity: 0.8;
    }

    16% {
        transform: translate(-4px, 4px) scale(1.02) skew(-2deg);
        border-color: #0080ff;
        opacity: 1;
    }

    24% {
        transform: translate(6px, 1px) scale(1.1) skew(4deg);
        border-color: #ff0040;
        opacity: 0.9;
    }

    32% {
        transform: translate(-1px, -5px) scale(1.06) skew(-3deg);
        border-color: #00ff80;
        opacity: 0.7;
    }

    40% {
        transform: translate(3px, 6px) scale(1.03) skew(2deg);
        border-color: #0080ff;
        opacity: 1;
    }

    48% {
        transform: translate(-6px, -1px) scale(1.09) skew(-4deg);
        border-color: #ff0040;
        opacity: 0.8;
    }

    56% {
        transform: translate(2px, -4px) scale(1.05) skew(1deg);
        border-color: #00ff80;
        opacity: 0.9;
    }

    64% {
        transform: translate(-5px, 3px) scale(1.07) skew(-1deg);
        border-color: #0080ff;
        opacity: 1;
    }

    72% {
        transform: translate(4px, -6px) scale(1.04) skew(5deg);
        border-color: #ff0040;
        opacity: 0.8;
    }

    80% {
        transform: translate(-2px, 2px) scale(1.11) skew(-2deg);
        border-color: #00ff80;
        opacity: 0.9;
    }

    88% {
        transform: translate(1px, 5px) scale(1.02) skew(3deg);
        border-color: #0080ff;
        opacity: 1;
    }

    96% {
        transform: translate(-4px, -3px) scale(1.08) skew(-5deg);
        border-color: #ff0040;
        opacity: 0.7;
    }

    100% {
        transform: translate(3px, 4px) scale(1.06) skew(2deg);
        border-color: #00ff80;
        opacity: 1;
    }
}

/* ===== ANIMATION: Portfolio Card Color Cycling ===== */
@keyframes cardGlitchColors {
    0% { border-color: #00ff80; }
    12% { border-color: #ff0040; }
    25% { border-color: #0080ff; }
    37% { border-color: #00ff80; }
    50% { border-color: #ff0040; }
    62% { border-color: #0080ff; }
    75% { border-color: #00ff80; }
    87% { border-color: #ff0040; }
    100% { border-color: #0080ff; }
}

.portfolio-image {
    height: 200px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #007bff, #6c757d);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-info h3 {
    margin-bottom: 0.5rem;
    color: #e0e0e0;
}

.portfolio-info p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    background-color: rgba(0, 0, 0, 0.9);
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: scale(0.9);
    transition: none;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.modal-content.modal-glitch-in {
    animation: modalGlitchReveal 0.6s ease-out forwards;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #b0b0b0;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #e0e0e0;
}

.modal-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #555;
}

.modal-header h2 {
    color: #e0e0e0;
    font-size: 2rem;
    margin: 0;
}

.modal-body {
    padding: 30px;
}

.modal-image {
    width: 100%;
    height: 250px;
    margin-bottom: 30px;
    border-radius: 10px;
    overflow: hidden;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.modal-placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #007bff, #6c757d);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.modal-info h3 {
    color: #e0e0e0;
    font-size: 1.3rem;
    margin-bottom: 15px;
    margin-top: 25px;
}

.modal-info h3:first-child {
    margin-top: 0;
}

.modal-info p {
    color: #b0b0b0;
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.tech-tag {
    background: #007bff;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.feature-list {
    color: #b0b0b0;
    line-height: 1.8;
    margin-bottom: 30px;
    padding-left: 20px;
}

.feature-list li {
    margin-bottom: 8px;
}

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

.modal-links .btn {
    flex: 1;
    min-width: 150px;
    text-align: center;
}

/* Modal animations */
@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Contact */
.contact-section .container {
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    margin-bottom: 1rem;
    color: #e0e0e0;
}

.contact-info p {
    margin-bottom: 2rem;
    color: #b0b0b0;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    color: #b0b0b0;
}

.contact-method a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-method a:hover {
    color: #0056b3;
    text-decoration: underline;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form-container {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #555;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: #333;
    color: #e0e0e0;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

/* GitHub Contributions Section */
/* Twitter Feed Section */
.twitter-feed-section {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #555;
}

.twitter-feed-section h3 {
    color: #e0e0e0;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.twitter-container {
    max-width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #333333;
    border: 1px solid #555;
    min-height: 200px;
}

/* Fallback content styling */
.twitter-fallback {
    padding: 2rem;
    text-align: center;
    color: #e0e0e0;
    background: #333333;
    border-radius: 10px;
}

.twitter-fallback p {
    margin: 0;
    line-height: 1.6;
}

.twitter-fallback-subtitle {
    color: #b0b0b0;
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* Override Twitter widget styling to match dark theme */
.twitter-timeline {
    border-radius: 10px !important;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

.footer-handle {
    color: #007bff;
    font-weight: 500;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Responsive */
@media (max-width: 1024px) {
    .hero-overlay-box {
        width: 92%;
        max-width: 550px;
        padding: 35px 25px;
    }

    .hero-nav {
        gap: 25px;
    }

    .hero-overlay-title {
        font-size: 3.5rem;
    }

    .hero-overlay-subtitle {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.9);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* About section responsive */
    .about-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 2rem;
        text-align: center;
        padding: 30px 20px;
    }

    .about-image {
        grid-row: auto;
    }

    .about-title {
        grid-column: 1;
        grid-row: auto;
        justify-content: center;
    }

    .profile-picture {
        width: 200px;
        height: 240px;
    }

    .about-text {
        grid-column: 1;
        grid-row: auto;
        text-align: center;
    }

    .hero {
        height: 100svh; /* Use small viewport height for mobile browsers */
        min-height: -webkit-fill-available; /* Safari fallback */
    }

    .hero-overlay-box {
        width: 95%;
        padding: 30px 20px;
        margin-bottom: 60px; /* Space for scroll arrow */
    }

    .hero-nav {
        gap: 15px;
        flex-wrap: wrap;
        margin-bottom: 20px;
        padding-bottom: 15px;
    }

    .hero-nav-link {
        font-size: 0.85rem;
        padding: 8px 12px;
    }

    .scroll-arrow {
        width: 25px;
        height: 25px;
        margin-bottom: 20px; /* Ensure it's visible above bottom edge */
    }

    .hero-overlay-title {
        font-size: 2.8rem;
        margin-bottom: 15px;
        letter-spacing: 1px;
    }

    .hero-overlay-subtitle {
        font-size: 1.1rem;
        line-height: 1.4;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .modal-content {
        margin: 10% auto;
        width: 95%;
        max-height: 80vh;
    }

    .modal-header {
        padding: 20px 20px 15px;
    }

    .modal-header h2 {
        font-size: 1.6rem;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-image {
        height: 200px;
        margin-bottom: 20px;
    }

    .modal-links {
        flex-direction: column;
    }

    .modal-links .btn {
        min-width: auto;
    }

    /* GitHub Activity box mobile */
    .github-graph-box {
        padding: 30px 20px;
    }

    /* GitHub Stats Row - Stack on Mobile */
    .github-stats-row {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* Contact section mobile */
    .contact-section .container {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0.8rem 15px;
    }

    .nav-logo {
        font-size: 1.3rem;
    }

    .hero-overlay-box {
        width: 98%;
        padding: 25px 15px;
        border-radius: 10px;
    }

    .hero-nav {
        gap: 10px;
        margin-bottom: 25px;
        padding-bottom: 12px;
    }

    .hero-nav-link {
        font-size: 0.8rem;
        padding: 6px 8px;
    }

    .hero-overlay-title {
        font-size: 2.2rem;
        margin-bottom: 12px;
        letter-spacing: 0.5px;
    }

    .hero-overlay-subtitle {
        font-size: 1rem;
        line-height: 1.3;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 320px) {
    .hero-overlay-title {
        font-size: 1.8rem;
    }

    .hero-overlay-subtitle {
        font-size: 0.9rem;
    }

    .hero-nav {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }

    .hero-nav-link {
        display: inline-block;
        width: auto;
    }
}

/* GitHub Contribution Graph Section */
.github-graph-box {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.github-graph-box .section-title {
    margin-bottom: 2rem;
}

.github-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.github-stats-left,
.github-stats-right {
    text-align: center;
}

.github-graph-container {
    text-align: center;
    margin-bottom: 2rem;
}

.github-graph-container:last-child {
    margin-bottom: 0;
}

.github-subsection-title {
    color: #e0e0e0;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-align: center;
}

.github-contribution-graph {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.github-streak,
.github-stats {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Artworks Section */
.art-section {
    background: rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.art-section .section-title {
    margin-bottom: 1rem;
}

.art-section .container {
    max-width: 1200px;
}

.art-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 0;
}

.art-card {
    perspective: 1000px;
    position: relative;
    cursor: pointer;
    border-radius: 10px;
    overflow: hidden;
    outline: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    height: 350px;
    min-height: 350px;
}

.art-card.glitch-in {
    animation: glitchReveal 1s ease-out forwards;
}

.art-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.art-card:focus {
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.3);
}

.art-card-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: none;
}

.art-card.is-flipped .art-card-inner {
    animation: artGlitchTransition 0.3s ease-out;
}

.art-front,
.art-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    overflow: hidden;
    transition: opacity 0.15s ease;
}

.art-card.is-flipped .art-front {
    opacity: 0;
}

.art-card.is-flipped .art-back {
    opacity: 1;
}

.art-front {
    background: #333333;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.art-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.art-logo-card {
    background: linear-gradient(135deg, #6c757d 0%, rgba(0, 123, 255, 0) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.art-logo-card .art-image {
    object-fit: contain;
    padding: 2rem;
}

.art-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #007bff, #6c757d);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
}

.art-back {
    background: rgba(0, 0, 0, 0.85);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    opacity: 0;
}

.art-title {
    color: #e0e0e0;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    font-weight: bold;
}

.art-meta {
    margin-bottom: 0.8rem;
}

.art-meta-line {
    color: #b0b0b0;
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
}

.art-meta-line strong {
    color: #007bff;
}

.art-desc {
    color: #b0b0b0;
    line-height: 1.5;
    font-size: 0.85rem;
}

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce) {
    .art-card-inner {
        transition: opacity 0.3s ease;
    }

    .art-card.is-flipped .art-card-inner {
        transform: none;
    }

    .art-front {
        opacity: 1;
        transition: opacity 0.3s ease;
    }

    .art-back {
        transform: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .art-card.is-flipped .art-front {
        opacity: 0;
    }

    .art-card.is-flipped .art-back {
        opacity: 1;
    }
}

/* Responsive design for art grid */
@media (max-width: 768px) {
    .art-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .art-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .art-back {
        padding: 1rem;
    }

    .art-title {
        font-size: 1rem;
    }

    .art-desc {
        font-size: 0.8rem;
    }
}

/* ===== ANIMATION: Artwork Card Flip Glitch Transition ===== */
@keyframes artGlitchTransition {
    0% {
        transform: translate(0, 0) scale(1) skew(0deg);
        filter: hue-rotate(0deg) contrast(1) brightness(1);
    }

    5% {
        transform: translate(-8px, 3px) scale(1.05) skew(-3deg);
        filter: hue-rotate(90deg) contrast(1.5) brightness(1.2);
        box-shadow:
            5px 0 0 #ff0040,
            -5px 0 0 #0080ff,
            0 5px 0 #00ff80;
    }

    15% {
        transform: translate(12px, -6px) scale(0.95) skew(5deg);
        filter: hue-rotate(180deg) contrast(2) brightness(0.8);
        box-shadow:
            -8px 0 0 #00ff80,
            8px 0 0 #ff0040,
            0 -8px 0 #0080ff;
    }

    25% {
        transform: translate(-15px, 10px) scale(1.1) skew(-8deg);
        filter: hue-rotate(270deg) contrast(0.5) brightness(1.5);
        box-shadow:
            10px 0 0 #0080ff,
            -10px 0 0 #00ff80,
            0 10px 0 #ff0040;
    }

    35% {
        transform: translate(20px, -15px) scale(0.9) skew(10deg);
        filter: hue-rotate(360deg) contrast(3) brightness(0.6);
        box-shadow:
            -12px 0 0 #ff0040,
            12px 0 0 #0080ff,
            0 -12px 0 #00ff80;
    }

    50% {
        transform: translate(-25px, 20px) scale(1.15) skew(-15deg);
        filter: hue-rotate(180deg) contrast(0.3) brightness(2);
        box-shadow:
            15px 0 0 #00ff80,
            -15px 0 0 #ff0040,
            0 15px 0 #0080ff;
    }

    65% {
        transform: translate(30px, -25px) scale(0.85) skew(20deg);
        filter: hue-rotate(90deg) contrast(4) brightness(0.4);
        box-shadow:
            -18px 0 0 #0080ff,
            18px 0 0 #00ff80,
            0 -18px 0 #ff0040;
    }

    80% {
        transform: translate(-10px, 5px) scale(1.08) skew(-5deg);
        filter: hue-rotate(270deg) contrast(1.8) brightness(1.1);
        box-shadow:
            8px 0 0 #ff0040,
            -8px 0 0 #0080ff,
            0 8px 0 #00ff80;
    }

    95% {
        transform: translate(3px, -2px) scale(1.02) skew(2deg);
        filter: hue-rotate(45deg) contrast(1.2) brightness(0.9);
        box-shadow:
            -3px 0 0 #00ff80,
            3px 0 0 #ff0040,
            0 -3px 0 #0080ff;
    }

    100% {
        transform: translate(0, 0) scale(1) skew(0deg);
        filter: hue-rotate(0deg) contrast(1) brightness(1);
        box-shadow: none;
    }
}

@keyframes artGlitchOut {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1) skew(0deg);
        filter: hue-rotate(0deg) brightness(1);
    }

    20% {
        opacity: 0.8;
        transform: translate(-5px, 3px) scale(1.1) skew(-10deg);
        filter: hue-rotate(120deg) brightness(1.5);
        box-shadow:
            3px 0 0 #ff0040,
            -3px 0 0 #0080ff;
    }

    50% {
        opacity: 0.3;
        transform: translate(10px, -8px) scale(0.8) skew(15deg);
        filter: hue-rotate(240deg) brightness(0.5);
        box-shadow:
            -8px 0 0 #00ff80,
            8px 0 0 #ff0040;
    }

    80% {
        opacity: 0.1;
        transform: translate(-15px, 12px) scale(1.2) skew(-20deg);
        filter: hue-rotate(360deg) brightness(2);
        box-shadow:
            12px 0 0 #0080ff,
            -12px 0 0 #00ff80;
    }

    100% {
        opacity: 0;
        transform: translate(20px, -20px) scale(0.5) skew(25deg);
        filter: hue-rotate(180deg) brightness(0);
        box-shadow: none;
    }
}

@keyframes artGlitchIn {
    0% {
        opacity: 0;
        transform: translate(-20px, 20px) scale(0.5) skew(-25deg);
        filter: hue-rotate(180deg) brightness(0);
    }

    20% {
        opacity: 0.1;
        transform: translate(15px, -12px) scale(1.2) skew(20deg);
        filter: hue-rotate(360deg) brightness(2);
        box-shadow:
            -12px 0 0 #ff0040,
            12px 0 0 #0080ff;
    }

    50% {
        opacity: 0.3;
        transform: translate(-10px, 8px) scale(0.8) skew(-15deg);
        filter: hue-rotate(240deg) brightness(0.5);
        box-shadow:
            8px 0 0 #00ff80,
            -8px 0 0 #ff0040;
    }

    80% {
        opacity: 0.8;
        transform: translate(5px, -3px) scale(1.1) skew(10deg);
        filter: hue-rotate(120deg) brightness(1.5);
        box-shadow:
            -3px 0 0 #0080ff,
            3px 0 0 #00ff80;
    }

    100% {
        opacity: 1;
        transform: translate(0, 0) scale(1) skew(0deg);
        filter: hue-rotate(0deg) brightness(1);
        box-shadow: none;
    }
}

/* ===== ANIMATION: Profile Picture Hover Glitch ===== */
@keyframes profileGlitch {
    0% {
        transform: translateX(0);
        filter: hue-rotate(0deg);
        box-shadow:
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    10% {
        transform: translateX(-2px) skew(-2deg);
        filter: hue-rotate(90deg);
        box-shadow:
            2px 0 0 2px #ff0040,
            -2px 0 0 2px #0080ff,
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    20% {
        transform: translateX(2px) skew(2deg);
        filter: hue-rotate(180deg);
        box-shadow:
            -2px 0 0 2px #00ff80,
            2px 0 0 2px #ff0040,
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    30% {
        transform: translateX(-1px) skew(-1deg);
        filter: hue-rotate(270deg);
        box-shadow:
            1px 0 0 2px #0080ff,
            -1px 0 0 2px #00ff80,
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    40% {
        transform: translateX(1px) skew(1deg);
        filter: hue-rotate(360deg);
        box-shadow:
            -1px 0 0 2px #ff0040,
            1px 0 0 2px #0080ff,
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    60% {
        transform: translateX(-1px);
        filter: hue-rotate(180deg);
        box-shadow:
            0 0 0 2px rgba(255, 0, 64, 0.5),
            0 0 0 4px rgba(0, 128, 255, 0.3),
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    80% {
        transform: translateX(0.5px);
        filter: hue-rotate(90deg);
        box-shadow:
            0 0 0 2px rgba(0, 255, 128, 0.3),
            0 10px 30px rgba(0, 0, 0, 0.3);
    }

    100% {
        transform: translateX(0);
        filter: hue-rotate(0deg);
        box-shadow:
            0 10px 30px rgba(0, 0, 0, 0.3);
    }
}

/* ===== ANIMATION: Scroll-Triggered Glitch Reveal ===== */
@keyframes glitchReveal {
    0% {
        opacity: 0;
        transform: translateY(50px);
        box-shadow:
            0 0 0 2px transparent,
            0 0 0 4px transparent,
            0 0 0 6px transparent;
    }

    20% {
        opacity: 0.3;
        transform: translateY(30px) translateX(-3px);
        box-shadow:
            2px 0 0 2px #ff0040,
            -2px 0 0 4px #0080ff,
            4px 0 0 6px #00ff80;
    }

    40% {
        opacity: 0.6;
        transform: translateY(15px) translateX(2px);
        box-shadow:
            -1px 0 0 2px #ff0040,
            3px 0 0 4px #0080ff,
            -3px 0 0 6px #00ff80;
    }

    60% {
        opacity: 0.8;
        transform: translateY(5px) translateX(-1px);
        box-shadow:
            1px 0 0 2px #ff0040,
            -1px 0 0 4px #0080ff,
            2px 0 0 6px #00ff80;
    }

    80% {
        opacity: 0.9;
        transform: translateY(2px) translateX(1px);
        box-shadow:
            0 0 0 2px rgba(255, 0, 64, 0.3),
            0 0 0 4px rgba(0, 128, 255, 0.2),
            0 0 0 6px rgba(0, 255, 128, 0.1);
    }

    100% {
        opacity: 1;
        transform: translateY(0) translateX(0);
        box-shadow:
            0 5px 15px rgba(0, 0, 0, 0.1);
    }
}

/* ===== ANIMATION: Modal Open Glitch Effect ===== */
@keyframes modalGlitchReveal {
    0% {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
        background-color: rgba(60, 60, 60, 0.1);
        box-shadow:
            0 0 0 2px transparent,
            0 0 0 4px transparent,
            0 0 0 6px transparent;
        border: 2px solid transparent;
    }

    15% {
        opacity: 0.2;
        transform: scale(0.92) translateY(15px) translateX(-2px);
        background-color: rgba(60, 60, 60, 0.3);
        box-shadow:
            3px 0 0 2px #ff0040,
            -3px 0 0 4px #0080ff,
            5px 0 0 6px #00ff80;
        border: 2px solid #ff0040;
    }

    30% {
        opacity: 0.4;
        transform: scale(0.95) translateY(10px) translateX(2px);
        background-color: rgba(60, 60, 60, 0.5);
        box-shadow:
            -2px 0 0 2px #0080ff,
            4px 0 0 4px #00ff80,
            -4px 0 0 6px #ff0040;
        border: 2px solid #0080ff;
    }

    45% {
        opacity: 0.6;
        transform: scale(0.97) translateY(5px) translateX(-1px);
        background-color: rgba(60, 60, 60, 0.65);
        box-shadow:
            1px 0 0 2px #00ff80,
            -1px 0 0 4px #ff0040,
            3px 0 0 6px #0080ff;
        border: 2px solid #00ff80;
    }

    60% {
        opacity: 0.75;
        transform: scale(0.99) translateY(2px) translateX(1px);
        background-color: rgba(60, 60, 60, 0.75);
        box-shadow:
            0 0 0 2px rgba(255, 0, 64, 0.5),
            0 0 0 4px rgba(0, 128, 255, 0.4),
            0 0 0 6px rgba(0, 255, 128, 0.3);
        border: 2px solid rgba(255, 255, 255, 0.3);
    }

    80% {
        opacity: 0.9;
        transform: scale(1) translateY(1px) translateX(0);
        background-color: rgba(60, 60, 60, 0.85);
        box-shadow:
            0 0 0 2px rgba(255, 0, 64, 0.2),
            0 0 0 4px rgba(0, 128, 255, 0.15),
            0 0 0 6px rgba(0, 255, 128, 0.1);
        border: 2px solid rgba(255, 255, 255, 0.2);
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0) translateX(0);
        background-color: #333333;
        box-shadow:
            0 20px 60px rgba(0, 0, 0, 0.3);
        border: 2px solid rgba(255, 255, 255, 0.1);
    }
}