/* Enhanced Form Validation Styles */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group.focused label,
.form-group.success label,
.form-group.error label {
    top: 0;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    padding: 0 0.5rem;
    background: var(--card-bg);
}

.form-group.success input,
.form-group.success textarea {
    border-color: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-group.success label {
    color: #22c55e;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group.error label {
    color: #ef4444;
}

/* Enhanced Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        gap: 2rem;
        transition: left 0.3s ease;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .nav-link {
        font-size: var(--font-size-lg);
        padding: 1rem 0;
    }
}

/* Enhanced Card Layouts for Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Hero Section Mobile */
    .hero {
        padding-top: 90px;
        padding-bottom: 110px;
    }
    
    .hero-profile-img {
        width: 180px;
        max-width: 180px;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
        line-height: 1.2;
        margin-bottom: var(--spacing-md);
    }
    
    .hero-description {
        font-size: var(--font-size-sm);
        line-height: 1.5;
        margin-bottom: var(--spacing-lg);
        max-width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .stat {
        min-width: auto;
        width: 100%;
        padding: var(--spacing-md);
        background: var(--glass-bg);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }
    
    .stat-number {
        font-size: var(--font-size-lg);
    }
    
    .stat-label {
        font-size: var(--font-size-xs);
    }
    
    /* Improved Skill Cards */
    .skill-card {
        padding: var(--spacing-lg);
        min-height: 180px;
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        position: relative;
    }
    
    .skill-preview {
        margin-top: var(--spacing-md);
        height: 90px;
        border-radius: var(--radius-md);
        overflow: hidden;
    }
    
    .photoshop-toggle-container,
    .webdev-gallery,
    .blender-showcase,
    .python-showcase,
    .figma-embed-container {
        height: 90px;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }
    
    .image-container {
        height: 65px;
        border-radius: var(--radius-sm);
    }
    
    .toggle-button {
        padding: 3px 8px;
        font-size: 10px;
        bottom: 3px;
        border-radius: var(--radius-xs);
        min-height: 20px;
    }
    
    .webdev-gallery {
        flex-direction: row;
        gap: 4px;
        padding: 4px;
    }
    
    .webdev-image-container {
        height: 82px;
        border-radius: var(--radius-sm);
    }
    
    .figma-iframe {
        transform: scale(0.18);
        width: 555%;
        height: 555%;
        transform-origin: top left;
    }
    
    /* Portfolio Improvements */
    .portfolio-item {
        margin-bottom: var(--spacing-lg);
        border-radius: var(--radius-lg);
        background: var(--card-bg);
        border: 1px solid var(--border-color);
    }
    
    .portfolio-image {
        height: 200px;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
    
    .portfolio-figma-iframe {
        transform: scale(0.18);
        width: 555%;
        height: 555%;
        transform-origin: top left;
    }
    
    .portfolio-overlay {
        background: linear-gradient(
            to bottom,
            transparent 0%,
            rgba(10, 10, 15, 0.8) 50%,
            rgba(10, 10, 15, 0.95) 100%
        );
        padding: var(--spacing-md);
    }
    
    .portfolio-overlay h4 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-xs);
    }
    
    .portfolio-overlay p {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
        line-height: 1.4;
    }
    
    /* About Section Mobile */
    .profile-image {
        width: 150px;
        height: 150px;
        margin: 0 auto var(--spacing-md);
    }
    
    .about-intro {
        font-size: var(--font-size-base);
        line-height: 1.6;
        text-align: center;
    }
    
    .about-text p {
        font-size: var(--font-size-sm);
        line-height: 1.6;
        text-align: center;
        margin-bottom: var(--spacing-md);
    }
    
    .highlight {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
    }
    
    .highlight i {
        width: 30px;
        font-size: var(--font-size-base);
    }
    
    /* Contact Improvements */
    .contact-item {
        padding: var(--spacing-md);
        background: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-sm);
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .contact-details h4 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-xs);
    }
    
    .contact-details p {
        font-size: var(--font-size-sm);
        margin: 0;
    }
    
    /* Form Mobile Improvements */
    .form-group {
        margin-bottom: var(--spacing-lg);
    }
    
    .form-group input,
    .form-group textarea {
        border-radius: var(--radius-lg);
        border: 2px solid var(--border-color);
        background: var(--card-bg);
        transition: all var(--transition-base);
    }
    
    .form-group input:focus,
    .form-group textarea:focus {
        border-color: var(--gradient-start);
        background: var(--glass-bg);
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.2);
    }
    
    /* Navigation Mobile */
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav-logo h2 {
        font-size: var(--font-size-lg);
    }
    
    .hamburger span {
        width: 22px;
        height: 2px;
        border-radius: 1px;
    }
    
    /* Mobile Navigation Bottom */
    .mobile-nav {
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        border-top: 2px solid var(--border-color);
    }
    
    .mobile-nav-item {
        border-radius: var(--radius-md);
        transition: all var(--transition-fast);
    }
    
    .mobile-nav-item i {
        font-size: var(--font-size-base);
        margin-bottom: 2px;
    }
    
    .mobile-nav-item span {
        font-size: 10px;
        font-weight: 500;
    }
    
    .mobile-nav-item.active {
        background: rgba(102, 126, 234, 0.2);
        color: var(--gradient-start);
        transform: translateY(-2px);
    }
    
    /* Improved Touch Targets */
    .clickable-card::after {
        width: 24px;
        height: 24px;
        font-size: 14px;
        top: 8px;
        right: 8px;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Accessibility Improvements */
    .btn {
        font-size: var(--font-size-base);
        font-weight: 600;
        letter-spacing: 0.5px;
        transition: all var(--transition-base);
    }
    
    .btn:active {
        transform: translateY(2px);
    }
    
    /* Loading States */
    .skill-card:active,
    .portfolio-item:active {
        opacity: 0.8;
        transition: opacity var(--transition-fast);
    }
    
    /* Improved Spacing */
    .section-header {
        padding: 0 var(--spacing-sm);
        margin-bottom: var(--spacing-xl);
    }
    
    .skills-grid,
    .portfolio-grid {
        padding: 0;
    }
    
    .portfolio-filter {
        padding: 0 var(--spacing-sm);
        margin-bottom: var(--spacing-xl);
    }
}

/* Loading Animation Enhancements */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--gradient-start);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Scroll Animations */
.slide-in-left {
    transform: translateX(-50px);
    opacity: 0;
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    transform: translateX(0);
    opacity: 1;
}

.slide-in-right {
    transform: translateX(50px);
    opacity: 0;
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    transform: translateX(0);
    opacity: 1;
}

.scale-in {
    transform: scale(0.8);
    opacity: 0;
    transition: all 0.6s ease;
}

.scale-in.visible {
    transform: scale(1);
    opacity: 1;
}

/* Performance Optimizations */
.gpu-accelerated {
    will-change: transform;
    transform: translateZ(0);
}

/* High DPI Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .image-placeholder {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Dark Mode Enhancements */
@media (prefers-color-scheme: dark) {
    :root {
        --card-bg: rgba(22, 33, 62, 0.8);
        --glass-bg: rgba(255, 255, 255, 0.03);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        animation-delay: -1ms !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        background-attachment: initial !important;
        scroll-behavior: auto !important;
        transition-duration: 0s !important;
        transition-delay: 0s !important;
    }
    
    .gradient-orb {
        animation: none;
    }
    
    .rotating-cube {
        animation: none;
    }
    
    .floating-icon {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .mobile-nav,
    .video-preview,
    .custom-cursor,
    .loading-overlay {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero {
        page-break-after: always;
    }
    
    .section-title {
        color: black !important;
    }
}

/* Accessibility Enhancements */
.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;
}

/* Focus Indicators */
*:focus {
    outline: 2px solid var(--gradient-start);
    outline-offset: 2px;
}

.btn:focus,
.nav-link:focus,
.mobile-nav-item:focus {
    outline: 2px solid var(--gradient-start);
    outline-offset: 4px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e0e0e0;
        --border-color: #555555;
        --card-bg: rgba(0, 0, 0, 0.8);
    }
    
    .btn-primary {
        background: #0066cc;
        border: 2px solid #ffffff;
    }
    
    .skill-card,
    .portfolio-item {
        border: 2px solid var(--border-color);
    }
}

/* Enhanced Error States */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message::before {
    content: '⚠';
    font-size: 1.2rem;
}

.success-message {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.success-message::before {
    content: '✓';
    font-size: 1.2rem;
}

/* Smooth Page Transitions */
.page-transition {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.page-transition.loaded {
    opacity: 1;
}

/* Enhanced Tooltips */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-dark);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    border: 1px solid var(--border-color);
    z-index: 1000;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--border-color);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
}

/* Enhanced Button Animations */
.btn-animated {
    position: relative;
    overflow: hidden;
    transform: perspective(1px) translateZ(0);
}

.btn-animated::before {
    content: '';
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--gradient-end), var(--gradient-start));
    transform: scaleX(0);
    transform-origin: 0 50%;
    transition: transform 0.3s ease-out;
}

.btn-animated:hover::before {
    transform: scaleX(1);
}

/* Enhanced Card Hover Effects */
.card-3d {
    transform-style: preserve-3d;
    transition: all 0.3s ease;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg) translateZ(20px);
}

/* Micro-interactions */
.micro-bounce {
    transition: transform 0.1s ease;
}

.micro-bounce:active {
    transform: scale(0.95);
}

/* Enhanced Loading States */
.skeleton {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    background-size: 200px 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

/* Progressive Enhancement */
.no-js .fade-in,
.no-js .slide-in-left,
.no-js .slide-in-right,
.no-js .scale-in {
    opacity: 1;
    transform: none;
}

/* Device-specific Optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Touch device optimizations */
    .skill-card:hover {
        transform: none;
    }
    
    .portfolio-item:hover {
        transform: none;
    }
    
    .btn:hover {
        transform: none;
    }
    
    /* Enhanced touch interactions */
    .skill-card:active {
        transform: scale(0.98);
        background: var(--glass-bg);
        border-color: var(--gradient-start);
    }
    
    .portfolio-item:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
    
    .btn:active {
        transform: scale(0.95);
        opacity: 0.9;
    }
    
    /* Always show click indicators on touch devices */
    .clickable-card::after {
        opacity: 0.7;
    }
    
    .clickable-card:active::after {
        opacity: 1;
        transform: scale(1.2);
    }
    
    /* Increase touch targets */
    .mobile-nav-item {
        min-height: 52px;
        padding: var(--spacing-md);
        margin: 0 2px;
        border-radius: var(--radius-lg);
    }
    
    .btn {
        min-height: 52px;
        padding: var(--spacing-md) var(--spacing-xl);
        border-radius: var(--radius-xl);
    }
    
    .filter-btn {
        min-height: 40px;
        padding: var(--spacing-sm) var(--spacing-lg);
        border-radius: var(--radius-lg);
    }
    
    .social-link {
        min-height: 48px;
        min-width: 48px;
        border-radius: var(--radius-lg);
    }
    
    .contact-icon {
        min-height: 48px;
        min-width: 48px;
    }
    
    /* Remove hover states that don't work on touch */
    .highlight:hover,
    .social-link:hover,
    .nav-link:hover {
        transform: none;
    }
    
    /* Add active states instead */
    .highlight:active {
        background: var(--glass-bg);
        border-color: var(--gradient-start);
        transform: scale(0.98);
    }
    
    .social-link:active {
        background: rgba(102, 126, 234, 0.3);
        transform: scale(0.9);
    }
    
    /* Improved form interactions */
    .form-group input:focus,
    .form-group textarea:focus {
        transform: none;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
    }
    
    /* Better popup interactions */
    .popup-close {
        min-height: 48px;
        min-width: 48px;
        border-radius: var(--radius-lg);
    }
    
    .popup-close:active {
        background: rgba(255, 255, 255, 0.2);
        transform: scale(0.9);
    }
}

/* Image Container Safety */
.skill-preview img,
.portfolio-image img,
.profile-img {
    max-width: 100%;
    max-height: 100%;
    display: block;
}

/* Ensure all skill preview containers maintain aspect ratio */
.skill-preview {
    position: relative;
    overflow: hidden;
}

.skill-preview * {
    box-sizing: border-box;
}

/* Portfolio image safety */
.portfolio-image {
    overflow: hidden;
    position: relative;
}

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

/* Figma iframe responsive scaling */
.figma-embed-container,
.figma-portfolio-embed {
    position: relative;
    overflow: hidden;
    background: var(--card-bg);
}

.figma-iframe,
.portfolio-figma-iframe {
    position: absolute;
    top: 0;
    left: 0;
    border: none;
    pointer-events: auto;
}

/* Container Queries Support (Future-proofing) */
@supports (container-type: inline-size) {
    .skill-card {
        container-type: inline-size;
    }
    
    @container (min-width: 300px) {
        .skill-preview {
            padding: 1rem;
        }
    }
}

/* Enhanced Typography Scale */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }
.text-5xl { font-size: var(--font-size-5xl); }
.text-6xl { font-size: var(--font-size-6xl); }

/* Utility Classes */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

.transform { transform: translateZ(0); }
.translate-y-0 { transform: translateY(0); }
.translate-y-2 { transform: translateY(0.5rem); }
.translate-y-4 { transform: translateY(1rem); }

.transition-all { transition: all 0.3s ease; }
.transition-fast { transition: all 0.2s ease; }
.transition-slow { transition: all 0.5s ease; }

.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

.select-none { user-select: none; }
.select-text { user-select: text; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-50 { z-index: 50; }
.z-100 { z-index: 100; }

/* Enhanced Mobile Typography and Spacing */
@media (max-width: 768px) {
    /* Better typography hierarchy */
    .hero-content h1 {
        font-size: 2.5rem;
        line-height: 1.1;
        margin-bottom: 1rem;
        font-weight: 700;
    }
    
    .hero-content p {
        font-size: 1.1rem;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.9);
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
        text-align: center;
        font-weight: 600;
    }
    
    /* Improved button styling */
    .cta-button {
        padding: 14px 28px;
        font-size: 1.1rem;
        font-weight: 600;
        border-radius: 10px;
        letter-spacing: 0.5px;
        min-height: 52px;
    }
    
    /* Better form accessibility */
    .contact-form input,
    .contact-form textarea {
        font-size: 16px !important; /* Prevents iOS zoom */
        padding: 16px 20px;
        border-radius: 10px;
        line-height: 1.5;
    }
    
    .contact-form label {
        font-size: 1rem;
        font-weight: 500;
        margin-bottom: 8px;
    }
    
    /* Enhanced card design */
    .skill-card h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
        font-weight: 600;
    }
    
    .portfolio-item h3 {
        font-size: 1.3rem;
        margin-bottom: 0.8rem;
        font-weight: 600;
    }
    
    /* Better social media icons */
    .social-links a {
        width: 52px;
        height: 52px;
        font-size: 1.6rem;
        border-radius: 12px;
        transition: all 0.3s ease;
    }
    
    .social-links a:hover,
    .social-links a:focus {
        transform: translateY(-3px) scale(1.05);
    }
    
    /* Improved spacing consistency */
    .about-content,
    .hero-content {
        text-align: center;
    }
    
    .about-content p {
        font-size: 1.05rem;
        line-height: 1.7;
        margin-bottom: 1.5rem;
        color: rgba(255, 255, 255, 0.85);
    }
}