/* CSS Variables for consistent theming */
:root {
    /* Colors */
    --color-background: #121212;
    --color-primary-text: #EAEAEA;
    --color-accent: #007BFF;
    --color-secondary-text: #A0A0A0;
    --color-card-bg: #1E1E1E;
    --color-border: #333333;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-h1: 3.5rem;
    --font-size-h2: 2.5rem;
    --font-size-h3: 1.5rem;
    --font-size-body: 1rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --header-height: 80px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-normal);
    font-size: var(--font-size-body);
    line-height: 1.6;
    color: var(--color-primary-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-semibold);
}

h3 {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-semibold);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary-text);
}

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

a:hover {
    color: #3395FF;
}

/* Utility classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-content {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-primary-text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
}

.btn-primary:hover {
    background-color: #3395FF;
    transform: translateY(-2px);
    color: white;
}

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

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

.btn-icon {
    padding: var(--spacing-sm);
    width: 48px;
    height: 48px;
    justify-content: center;
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn-icon:hover {
    background-color: var(--color-accent);
    color: white;
    transform: translateY(-2px);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-brand a {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-text);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-secondary-text);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary-text);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-lg);
}

.hero-intro {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    color: var(--color-secondary-text);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.about-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: stretch;
    margin-bottom: var(--spacing-3xl);
    min-height: 600px;
}

.about-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-secondary-text);
}

.about-photo {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    min-height: 600px;
    overflow: visible;
}

.photo-placeholder {
    width: 250px;
    height: 300px;
    border: 2px dashed var(--color-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    transition: border-color var(--transition-normal);
}

.photo-placeholder:hover {
    border-color: var(--color-accent);
}

.photo-placeholder i {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.photo-placeholder p {
    color: var(--color-secondary-text);
    font-size: 0.875rem;
    margin: 0;
}

.profile-image {
    width: 180px;
    height: 220px;
    border-radius: 12px;
    object-fit: cover;
    object-position: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: block;
    position: relative;
    z-index: 2;
}

.profile-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.graduation-image {
    width: 180px;
    height: 220px;
    border-radius: 12px;
    object-fit: cover;
    object-position: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: block;
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.graduation-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.graduation-placeholder {
    width: 180px;
    height: 220px;
    border: 2px dashed var(--color-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    transition: border-color var(--transition-normal);
    margin-top: var(--spacing-lg);
}

.graduation-placeholder:hover {
    border-color: var(--color-accent);
}

.graduation-placeholder i {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.graduation-placeholder p {
    color: var(--color-secondary-text);
    font-size: 0.875rem;
    text-align: center;
    margin: 0;
    line-height: 1.3;
}

/* Impact at Scale Section */
.impact-section {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 1px solid var(--color-border);
}

.impact-title {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-text);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.impact-item {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.impact-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.company-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.75rem;
}

.pinterest-logo {
    background-color: #E60023;
    color: white;
}

.google-logo {
    background: linear-gradient(45deg, #4285F4, #34A853, #FBBC05, #EA4335);
    color: white;
}

.impact-metric {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.impact-description {
    color: var(--color-secondary-text);
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
}

/* Philosophy/Framework Section */
.philosophy-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.philosophy-content strong {
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
}

.framework-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    align-items: start;
}

/* Flip Card Styles */
.flip-card {
    background-color: transparent;
    width: 100%;
    height: 280px;
    perspective: 1000px;
    cursor: pointer;
    position: relative;
    margin-bottom: 0;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 12px;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 12px;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    box-sizing: border-box;
    transition: box-shadow var(--transition-normal);
    overflow: hidden;
    top: 0;
    left: 0;
}

.flip-card:hover .flip-card-front,
.flip-card:hover .flip-card-back {
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.15);
}

.flip-card-back {
    transform: rotateY(180deg);
    justify-content: flex-start;
    padding: var(--spacing-lg);
}

.flip-card-front {
    background: linear-gradient(135deg, var(--color-card-bg) 0%, #1a1a2e 100%);
    position: relative;
}

.flip-card-back {
    background: linear-gradient(135deg, #1a1a2e 0%, var(--color-card-bg) 100%);
}

.pillar-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.pillar-title {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-accent);
    margin-bottom: 0;
    line-height: 1.3;
    text-align: center;
    padding: 0 var(--spacing-xs);
}

.pillar-description {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-md);
    text-align: left;
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
    max-height: 180px;
}

.flip-hint {
    font-size: 0.8rem;
    color: var(--color-accent);
    opacity: 0.7;
    font-style: italic;
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
}

/* Portfolio Section */
.portfolio {
    background-color: var(--color-card-bg);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.portfolio-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-normal);
    position: relative;
    z-index: 1;
}

.portfolio-card-link:hover {
    text-decoration: none;
    color: inherit;
}

.portfolio-card {
    background-color: var(--color-background);
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid var(--color-border);
    position: relative;
}

/* Only add cursor pointer to cards that aren't wrapped in links */
.portfolio-card:not(.portfolio-card-link .portfolio-card) {
    cursor: pointer;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
}

.portfolio-card.active {
    border-color: var(--color-accent);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.2);
}

.portfolio-card.coming-soon {
    opacity: 0.8;
}

.card-image {
    height: 120px;
    position: relative;
    overflow: hidden;
}

.card-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-border) 0%, var(--color-card-bg) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-accent);
}

.card-placeholder i {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.card-placeholder img {
    display: none !important;
}

/* Force hide any broken images across the entire site */
img[src*="1755451552939"],
img[src*="1755451552938"],
img[src*="Screenshot"],
img[alt*="AssetChat"],
img[alt*="AssetChat Logo"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

/* Ensure Font Awesome icons are always visible */
.fas, .fab, .far, .fal, .fa {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.card-content {
    padding: var(--spacing-lg);
}

.card-title {
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-sm);
}

.card-description {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-border);
    color: var(--color-primary-text);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.coming-soon-badge {
    background-color: var(--color-accent);
    color: white;
}

/* AI Playground Section */
.playground-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.gallery-image {
    width: 100%;
    height: 100%;
    position: relative;
    cursor: pointer;
}

.playground-gallery .gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: var(--color-card-bg);
    transition: transform var(--transition-normal);
}

.playground-gallery .gallery-item:hover .gallery-image img {
    transform: scale(1.05);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-border) 0%, var(--color-card-bg) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-accent);
    transition: transform var(--transition-normal);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--color-primary-text);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .image-overlay {
    transform: translateY(0);
}

.gallery-item:hover .image-placeholder {
    transform: scale(1.1);
}

/* What's Next Section */
.next {
    background-color: var(--color-card-bg);
}

.next-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.next-heading {
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.next-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

/* Contact Section */
.contact-intro {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.contact-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    color: var(--color-secondary-text);
    font-size: 0.875rem;
    margin: 0;
}

/* Animation classes */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Portfolio Page Styles */
.portfolio-page {
    padding-top: var(--header-height);
    min-height: 100vh;
    background-color: var(--color-background);
}

.page-title {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-text);
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-secondary-text);
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.portfolio-card.featured {
    border: 2px solid var(--color-accent);
}

.portfolio-card.professional {
    border-left: 4px solid #4CAF50;
}

.portfolio-card.upcoming {
    border-left: 4px solid #FF9800;
}

.card-details {
    display: none;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* Portfolio Detail View */
.portfolio-detail {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background-color: var(--color-background);
    border-radius: 12px;
    border: 1px solid var(--color-accent);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.5s ease-in-out;
}

.portfolio-detail.active {
    opacity: 1;
    max-height: 2000px;
    margin-bottom: var(--spacing-xl);
    display: block;
}

.detail-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.detail-image {
    width: 150px;
    height: 150px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-accent), #4CAF50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-image i {
    font-size: 3rem;
    color: white;
}

.detail-content h2 {
    font-size: var(--font-size-h2);
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.detail-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-lg);
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.detail-tags .tag {
    padding: 8px 16px;
    background-color: var(--color-accent);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.detail-actions {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.drive-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    background: linear-gradient(135deg, #4285F4, #34A853);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    border: none;
    box-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
}

.drive-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 133, 244, 0.4);
    background: linear-gradient(135deg, #3367D6, #2E7D32);
}

.drive-button i {
    font-size: 1.1rem;
}

.detail-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.detail-section {
    padding: var(--spacing-lg);
    background-color: var(--color-card-bg);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.detail-section h3 {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-semibold);
}

/* Project Files Styling */
.project-files {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.project-files h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.file-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 2px solid var(--color-accent);
}

.download-btn:hover {
    background-color: transparent;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .download-btn {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

.detail-section p {
    color: var(--color-secondary-text);
    line-height: 1.6;
    margin: 0;
}

.close-detail {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-secondary-text);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-normal);
}

.close-detail:hover {
    color: var(--color-primary-text);
}

.card-details p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary-text);
}

.card-details strong {
    color: var(--color-primary-text);
}

.nav-links a.active {
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
}

.contact-section {
    background-color: var(--color-card-bg);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-3xl);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-h1: 2.5rem;
        --font-size-h2: 2rem;
        --font-size-h3: 1.25rem;
        --spacing-lg: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        border-top: 1px solid var(--color-border);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .playground-gallery {
        grid-template-columns: 1fr;
    }
    
    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .framework-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .flip-card {
        height: 220px;
    }
    
    .pillar-title {
        font-size: 1rem;
    }
    
    .pillar-description {
        font-size: 0.9rem;
    }
    
    .about-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .photo-placeholder {
        width: 200px;
        height: 240px;
        margin: 0 auto;
    }
    
    .profile-image {
        width: 150px;
        height: 180px;
        margin: 0 auto;
    }
    
    .impact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .impact-metric {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-content {
        padding: 0 var(--spacing-sm);
    }
    
    :root {
        --font-size-h1: 2rem;
        --font-size-h2: 1.75rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-background: #000000;
        --color-primary-text: #FFFFFF;
        --color-accent: #0099FF;
        --color-secondary-text: #CCCCCC;
        --color-card-bg: #111111;
        --color-border: #444444;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* AI Playground Page Styles */
.ai-hero {
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-card-bg) 100%);
    min-height: 60vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.ai-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
    z-index: 0;
}

.ai-hero .hero-content {
    position: relative;
    z-index: 1;
}

.hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-secondary-text);
}

.ai-gallery {
    background-color: var(--color-card-bg);
    padding: var(--spacing-3xl) 0;
}

.gallery-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.gallery-intro h2 {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-md);
}

.gallery-intro p {
    color: var(--color-secondary-text);
    font-size: 1.1rem;
    line-height: 1.7;
}

.gallery-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: var(--spacing-3xl);
    width: 100%;
}

.ai-gallery .gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background-color: var(--color-background);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
    aspect-ratio: 1;
    flex: 0 0 calc(33.333% - 1.333rem);
}

@media (max-width: 1024px) {
    .ai-gallery .gallery-item {
        flex: 0 0 calc(50% - 1rem);
    }
    .gallery-grid {
        gap: 1.5rem;
    }
}

@media (max-width: 640px) {
    .ai-gallery .gallery-item {
        flex: 0 0 100%;
    }
    .gallery-grid {
        gap: 1rem;
    }
}

.ai-gallery .gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.ai-gallery .gallery-item.coming-soon {
    opacity: 0.7;
}

.ai-gallery .gallery-image {
    position: relative;
    height: 100%;
    width: 100%;
    overflow: hidden;
}

.ai-gallery .gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.ai-gallery .gallery-item:hover .gallery-image img {
    transform: scale(1.05);
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-border) 0%, var(--color-card-bg) 100%);
    color: var(--color-secondary-text);
}

.gallery-placeholder i {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.gallery-placeholder p {
    text-align: center;
    margin: 0;
    font-style: italic;
}

.ai-gallery .image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.9) 70%);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-lg);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.ai-gallery .gallery-item:hover .image-overlay {
    opacity: 1;
}

.overlay-content {
    width: 100%;
}

.overlay-content h3 {
    color: var(--color-primary-text);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-semibold);
}

.image-prompt {
    color: var(--color-secondary-text);
    font-style: italic;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.image-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.ai-model,
.category {
    background: rgba(0, 123, 255, 0.2);
    color: var(--color-accent);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: var(--font-weight-medium);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    color: var(--color-secondary-text);
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 25px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.ai-process {
    background-color: var(--color-background);
    padding: var(--spacing-3xl) 0;
}

.process-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.process-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-xl);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.process-step {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-card-bg);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-normal);
}

.process-step:hover {
    transform: translateY(-4px);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent) 0%, rgba(0, 123, 255, 0.8) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.step-icon i {
    font-size: 1.5rem;
    color: white;
}

.process-step h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary-text);
}

.process-step p {
    color: var(--color-secondary-text);
    line-height: 1.6;
}

.ai-cta {
    background: linear-gradient(135deg, var(--color-accent) 0%, rgba(0, 123, 255, 0.8) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta-content h2 {
    color: white;
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.btn.btn-primary {
    background: white;
    color: var(--color-accent);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: 8px;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    display: inline-block;
    transition: all var(--transition-fast);
}

.btn.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}