/* Apple-like Design System */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Apple-inspired Color Palette */
    --system-blue: #007AFF;
    --system-blue-light: #4FC3F7;
    --system-blue-dark: #0056CC;
    --system-gray: #8E8E93;
    --system-gray-2: #AEAEB2;
    --system-gray-3: #C7C7CC;
    --system-gray-4: #D1D1D6;
    --system-gray-5: #E5E5EA;
    --system-gray-6: #F2F2F7;
    
    /* Semantic Colors */
    --label-primary: #000000;
    --label-secondary: #3C3C43;
    --label-tertiary: #3C3C4399;
    --label-quaternary: #3C3C432E;
    
    /* Background Colors */
    --background-primary: #FFFFFF;
    --background-secondary: #F2F2F7;
    --background-tertiary: #FFFFFF;
    --background-grouped-base: #F2F2F7;
    --background-grouped-secondary: #FFFFFF;
    
    /* Fill Colors */
    --fill-primary: #78788033;
    --fill-secondary: #78788028;
    --fill-tertiary: #7676801E;
    --fill-quaternary: #74748014;
    
    /* Material Effects */
    --backdrop-blur: blur(20px);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
    --nav-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
    --font-weight-ultralight: 100;
    --font-weight-thin: 200;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-heavy: 800;
    --font-weight-black: 900;
    
    /* Spacing System */
    --spacing-sm-mobile-content: 24px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --label-primary: #FFFFFF;
        --label-secondary: #EBEBF5;
        --label-tertiary: #EBEBF599;
        --label-quaternary: #EBEBF52E;
        
        --background-primary: #000000;
        --background-secondary: #1C1C1E;
        --background-tertiary: #2C2C2E;
        --background-grouped-base: #000000;
        --background-grouped-secondary: #1C1C1E;
        
        --fill-primary: #78788033;
        --fill-secondary: #78788028;
        --fill-tertiary: #7676801E;
        --fill-quaternary: #74748014;
        
        --system-gray-6: #1C1C1E;
    }
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-system);
    font-weight: var(--font-weight-regular);
    line-height: 1.47;
    color: var(--label-primary);
    background-color: var(--background-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm-mobile-content);
    }
}

/* Navigation - Apple-style floating nav */
.navigation {
    position: fixed;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-2xl);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-base);
}

@media (prefers-color-scheme: dark) {
    .navigation {
        background: rgba(28, 28, 30, 0.8);
        border-color: var(--system-gray);
    }
}

.nav-container {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-2xl);
}

.nav-logo a {
    font-size: 17px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.nav-logo a:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--label-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--system-blue);
    background-color: var(--fill-secondary);
}

.nav-link.active {
    color: var(--system-blue);
    background-color: var(--fill-primary);
}

@media (max-width: 768px) {
    .navigation {
        position: fixed;
        top: auto;
        bottom: var(--spacing-md);
        left: var(--spacing-md);
        right: var(--spacing-md);
        transform: none;
        border-radius: var(--radius-xl);
    }
    
    .nav-container {
        justify-content: space-around;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .nav-logo {
        display: none;
    }
    
    .nav-links {
        gap: 0;
    width: 100%;
        justify-content: space-around;
    }
}

@media (max-width: 480px) {
    .navigation {
        bottom: var(--spacing-sm);
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .nav-container {
        padding: var(--spacing-sm);
    }
}

/* Main Content */
main {
    padding-top: var(--spacing-4xl);
    min-height: 100vh;
}

@media (max-width: 768px) {
    main {
        padding-top: var(--spacing-3xl);
        padding-bottom: 100px; /* Account for bottom nav */
    }
}

@media (max-width: 480px) {
    main {
        padding-top: var(--spacing-2xl);
        padding-bottom: 40px;
    }
}

/* Hero Section - Apple-style large text */
.hero {
    text-align: center;
    padding: var(--spacing-4xl) 0;
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-xl) 0;
    }
}

.hero h1 {
    font-size: clamp(36px, 8vw, 96px);
    font-weight: var(--font-weight-bold);
    line-height: 1.05;
    letter-spacing: -0.025em;
    margin-bottom: var(--spacing-lg);
    color: var(--label-primary);
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: clamp(28px, 10vw, 48px);
        margin-bottom: var(--spacing-md);
    }
}

.hero-subtitle {
    font-size: clamp(18px, 4vw, 28px);
    font-weight: var(--font-weight-regular);
    color: var(--label-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.29;
}

@media (max-width: 480px) {
    .hero-subtitle {
        font-size: clamp(16px, 5vw, 21px);
        margin-bottom: var(--spacing-md);
    }
}

.hero-description {
    font-size: 17px;
    font-weight: var(--font-weight-regular);
    color: var(--label-tertiary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.47;
}

@media (max-width: 480px) {
    .hero-description {
        font-size: 15px;
        margin-bottom: var(--spacing-lg);
    }
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
}

/* Apple-style Buttons */

.btn-primary {
    background: var(--system-blue);
    color: white;
    box-shadow: 0 1px 2px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    background: var(--system-blue-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 122, 255, 0.3);
}

.btn-secondary {
    background: var(--background-secondary);
    color: var(--system-blue);
    border: 1px solid var(--system-gray-4);
}

.btn-secondary:hover {
    background: var(--fill-secondary);
    transform: translateY(-1px);
    box-shadow: var(--card-shadow-hover);
}

.btn-secondary:active {
    transform: translateY(0);
    background: var(--fill-primary);
}

/* Sections */
section {
    margin: var(--spacing-4xl) 0;
}

@media (max-width: 768px) {
    section {
        margin: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    section {
        margin: var(--spacing-xl) 0;
    }
}

section h2 {
    font-size: clamp(24px, 5vw, 40px);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    color: var(--label-primary);
}

@media (max-width: 480px) {
    section h2 {
        font-size: clamp(20px, 6vw, 28px);
        margin-bottom: var(--spacing-lg);
    }
}

/* Cards - Apple-style with subtle shadows */
.project-card {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

@media (max-width: 480px) {
.project-card {
        padding: var(--spacing-lg);
    }
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--system-gray-3);
}


.tech-tag {
    background: var(--fill-secondary);
    color: var(--label-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 13px;
    font-weight: var(--font-weight-medium);
}



/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

@media (max-width: 768px) {
.stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        gap: var(--spacing-md);
    }
}

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 480px) {
    .stat-item {
        padding: var(--spacing-lg);
    }
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.stat-item h3 {
    font-size: 21px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin-bottom: var(--spacing-sm);
}

.stat-item p {
    color: var(--label-secondary);
    font-size: 15px;
    line-height: 1.47;
}

/* Experience Highlights */
.experience-highlight {
    margin: var(--spacing-4xl) 0;
}

.highlight-card {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 768px) {
    .highlight-card {
        padding: var(--spacing-xl);
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .highlight-card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
}

.highlight-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--system-gray-3);
}

.highlight-card:last-child {
    margin-bottom: 0;
}

.highlight-content h3 {
    font-size: 24px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.highlight-content p {
    font-size: 17px;
    line-height: 1.47;
    color: var(--label-secondary);
}

/* Call-to-Action Section */
.cta-section {
    text-align: center;
    padding: var(--spacing-4xl) var(--spacing-lg);
    background: var(--background-secondary);
    border-radius: var(--radius-2xl);
    margin: var(--spacing-4xl) 0;
}

@media (max-width: 768px) {
    .cta-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
        margin: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .cta-section {
        padding: var(--spacing-xl) var(--spacing-md);
        margin: var(--spacing-xl) 0;
    }
}

.cta-description {
    font-size: 19px;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.47;
}

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

@media (max-width: 768px) {
    .highlight-content h3 {
        font-size: 21px;
    }
    
    .highlight-content p {
        font-size: 15px;
    }
    
    .cta-description {
        font-size: 17px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .highlight-content h3 {
        font-size: 19px;
    }
    
    .highlight-content p {
        font-size: 14px;
    }
    
    .cta-description {
        font-size: 15px;
    }
    
    .cta-actions .btn {
        max-width: 100%;
    }
}

/* About Page */
.about {
    max-width: 1000px;
    margin: 0 auto;
    /* padding: 0 var(--spacing-lg); */
}

/* About Hero Section */
.about-hero {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    margin-bottom: var(--spacing-4xl);
    padding: var(--spacing-2xl) 0;
}

@media (max-width: 768px) {
    .about-hero {
        grid-template-columns: 1fr;
    text-align: center;
        gap: var(--spacing-2xl);
        margin-bottom: var(--spacing-2xl);
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 480px) {
    .about-hero {
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-xl);
        padding: var(--spacing-md) 0;
    }
}

.about-intro h1 {
    font-size: clamp(32px, 6vw, 64px);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.025em;
    color: var(--label-primary);
}

@media (max-width: 480px) {
    .about-intro h1 {
        font-size: clamp(24px, 8vw, 40px);
        margin-bottom: var(--spacing-sm);
    }
}

.about-subtitle {
    font-size: 21px;
    color: var(--system-blue);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
}

@media (max-width: 480px) {
    .about-subtitle {
        font-size: 17px;
        margin-bottom: var(--spacing-md);
    }
}

.about-description {
    font-size: 17px;
    line-height: 1.47;
    color: var(--label-secondary);
}

@media (max-width: 480px) {
    .about-description {
        font-size: 15px;
    }
}

.profile-image-placeholder {
    width: 200px;
    height: 200px;
    background: var(--background-grouped-secondary);
    border: 2px dashed var(--system-gray-4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--label-tertiary);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    margin-left: auto;
    overflow: hidden;
}

.profile-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: none;
}

/* Experience Section */
.experience-section {
    margin-bottom: var(--spacing-4xl);
}

@media (max-width: 768px) {
    .experience-section {
        margin-bottom: var(--spacing-2xl);
    }
}

@media (max-width: 480px) {
    .experience-section {
        margin-bottom: var(--spacing-xl);
    }
}

.experience-timeline {
    margin-top: var(--spacing-2xl);
}

@media (max-width: 480px) {
    .experience-timeline {
        margin-top: var(--spacing-lg);
    }
}

.experience-card {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    padding: 0;
    margin-bottom: var(--spacing-xl);
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

@media (max-width: 768px) {
    .experience-card {
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .experience-card {
        margin-bottom: var(--spacing-md);
    }
}

.experience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--system-gray-3);
}

.experience-card:last-child {
    margin-bottom: 0;
}

/* Experience Gallery - App Store Style */

.gallery-container {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--spacing-xl) var(--spacing-2xl) var(--spacing-lg);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

.gallery-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari and Opera */
}

.gallery-item {
    flex-shrink: 0;
    height: 300px; /* Fixed height */
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--background-secondary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.gallery-item:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.08);
}

.gallery-item img {
    height: 100%;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

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

@media (max-width: 768px) {
    .gallery-container {
        padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-md);
    }
    
    .gallery-item {
        height: 240px;
    }
}

@media (max-width: 480px) {
    .gallery-container {
        padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .gallery-item {
        height: 200px;
    }
}

/* Experience Content */
.experience-content {
    padding: var(--spacing-xl) var(--spacing-2xl) var(--spacing-2xl);
}

@media (max-width: 768px) {
    .experience-content {
        padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .experience-content {
        padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
    }
}



.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
}

.experience-header h3 {
    font-size: 21px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin: 0;
}

.experience-period {
    font-size: 15px;
    color: var(--system-blue);
    font-weight: var(--font-weight-medium);
    background: var(--fill-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
}

.company-name {
    font-size: 17px;
    color: var(--label-secondary);
    font-weight: var(--font-weight-medium);
    margin: 0 0 var(--spacing-md) 0;
}

.experience-description {
    font-size: 15px;
    line-height: 1.47;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-lg);
}

.achievements {
    margin-bottom: var(--spacing-lg);
}

.achievements h5 {
    font-size: 15px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin: 0 0 var(--spacing-sm) 0;
}

.achievements ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.achievements li {
    font-size: 14px;
    line-height: 1.47;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-xs);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-tag {
    background: var(--system-blue);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
}

/* Skills Section */
.skills-section {
    margin-bottom: var(--spacing-4xl);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.skill-category {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 480px) {
    .skill-category {
        padding: var(--spacing-lg);
    }
}

.skill-category:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.skill-category h3 {
    font-size: 19px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin-bottom: var(--spacing-lg);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-item {
    background: var(--fill-secondary);
    color: var(--label-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.skill-item:hover {
    background: var(--fill-primary);
    transform: translateY(-1px);
}

/* Certifications Section */
.certifications-section {
    margin-bottom: var(--spacing-4xl);
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.credential-card {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 480px) {
    .credential-card {
        padding: var(--spacing-lg);
    }
}

.credential-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.credential-card h3 {
    font-size: 19px;
    font-weight: var(--font-weight-semibold);
    color: var(--label-primary);
    margin-bottom: var(--spacing-md);
}

.credential-card p {
    font-size: 15px;
    line-height: 1.47;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-md);
}

.credential-year {
    font-size: 13px;
    color: var(--system-blue);
    font-weight: var(--font-weight-semibold);
    background: var(--fill-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
}

/* CSS-only Experience Expand */
.experience-expand-toggle {
    display: none;
}

.experience-expand-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.experience-expand-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-3xl);
    color: var(--system-blue);
    font-size: 15px;
    font-weight: var(--font-weight-medium);
    font-family: var(--font-system);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--card-shadow);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    min-height: 44px;
}

.experience-expand-btn:hover {
    background: var(--fill-secondary);
    border-color: var(--system-gray-3);
    transform: translateY(-1px);
    box-shadow: var(--card-shadow-hover);
}

.experience-expand-btn:active {
    transform: translateY(0);
    background: var(--fill-primary);
}

.experience-expand-btn .expand-icon {
    opacity: 0.8;
}

/* Initially hide cards beyond the second one */
.experience-card:nth-child(n+3) {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin-bottom: 0;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out, margin-bottom 0.3s ease-out;
}

/* When checkbox is checked, show all cards and hide the expand button */
.experience-expand-toggle:checked ~ .experience-timeline .experience-card:nth-child(n+3) {
    max-height: 2000px; /* Large enough to accommodate any card */
    opacity: 1;
    margin-bottom: var(--spacing-xl);
}

.experience-expand-toggle:checked ~ .experience-expand-container {
    display: none;
}

/* Responsive margin adjustments for expanded cards */
@media (max-width: 768px) {
    .experience-expand-toggle:checked ~ .experience-timeline .experience-card:nth-child(n+3) {
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .experience-expand-toggle:checked ~ .experience-timeline .experience-card:nth-child(n+3) {
        margin-bottom: var(--spacing-md);
    }
}

@media (prefers-color-scheme: dark) {
    .experience-expand-btn {
        background: rgba(28, 28, 30, 0.8);
        border-color: var(--system-gray);
    }
    
    .experience-expand-btn:hover {
        background: var(--fill-secondary);
    }
}

@media (max-width: 768px) {
    .experience-expand-container {
        margin-top: var(--spacing-xl);
    }
    
    .experience-expand-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .experience-expand-container {
        margin-top: var(--spacing-lg);
    }
    
    .experience-expand-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 13px;
        min-width: 140px;
    }
}

/* Contact Section */
.contact-section {
    text-align: center;
    padding: var(--spacing-4xl) var(--spacing-lg);
    background: var(--background-secondary);
    border-radius: var(--radius-2xl);
    margin: var(--spacing-4xl) 0;
}

@media (max-width: 768px) {
    .contact-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
        margin: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .contact-section {
        padding: var(--spacing-xl) var(--spacing-md);
        margin: var(--spacing-xl) 0;
    }
}

.contact-description {
    font-size: 17px;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.47;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-xl);
    color: var(--label-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
    background: var(--fill-secondary);
}

.contact-icon {
    font-size: 18px;
}

/* Responsive Design for About Page */
@media (max-width: 768px) {
    .profile-image-placeholder {
        margin: 0 auto;
        width: 150px;
        height: 150px;
    }
    
    .profile-image-placeholder img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 50%;
        border: none;
    }
    

    
    .experience-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .credentials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .contact-link {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .profile-image-placeholder {
        width: 120px;
        height: 120px;
    }
    

    
    .skills-grid {
        gap: var(--spacing-md);
    }
    
    .credentials-grid {
        gap: var(--spacing-md);
    }
    
    .contact-links {
        gap: var(--spacing-sm);
    }
    
    .contact-link {
        max-width: 100%;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

/* Blog Work-in-Progress Page */
.blog-wip {
    max-width: 980px;
    margin: 0 auto;
    /* padding: 0 var(--spacing-lg); */
}

/* Hero Section */
.wip-hero {
    text-align: center;
    padding: var(--spacing-4xl) 0 var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.wip-icon {
    margin-bottom: var(--spacing-xl);
}

.wip-symbol {
    font-size: 64px;
    opacity: 0.8;
    animation: float 3s ease-in-out infinite;
}

.wip-title {
    font-size: clamp(48px, 8vw, 76px);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.035em;
    background: linear-gradient(135deg, var(--label-primary), var(--system-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.wip-subtitle {
    font-size: 21px;
    color: var(--label-secondary);
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
}

/* Main Content */
.wip-content {
    margin-bottom: var(--spacing-4xl);
}

.wip-card {
    background: var(--background-grouped-secondary);
    border: 1px solid var(--system-gray-5);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-3xl);
    backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-base);
}

.wip-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

/* Status Indicator */
.wip-status {
    margin-bottom: var(--spacing-xl);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--fill-secondary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--system-gray-5);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--system-blue);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.status-text {
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--label-secondary);
}

.wip-heading {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.025em;
    color: var(--label-primary);
}

.wip-description {
    font-size: 17px;
    line-height: 1.47;
    color: var(--label-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 640px;
}

/* Features Grid */
.wip-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.feature-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--background-tertiary);
    border: 1px solid var(--system-gray-6);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--card-shadow);
    border-color: var(--system-gray-4);
}

.feature-icon {
    font-size: 24px;
    opacity: 0.8;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 17px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--label-primary);
}

.feature-content p {
    font-size: 15px;
    line-height: 1.4;
    color: var(--label-secondary);
}

/* Timeline */
.wip-timeline {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--system-gray-5);
}

.timeline-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.timeline-header h3 {
    font-size: 21px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--label-primary);
}

.timeline-header p {
    font-size: 15px;
    color: var(--label-tertiary);
}

.timeline-progress {
    max-width: 500px;
    margin: 0 auto;
}

.progress-bar {
    height: 4px;
    background: var(--system-gray-5);
    border-radius: 2px;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 50%;
    background: linear-gradient(90deg, var(--system-blue), var(--system-blue-light));
    border-radius: 2px;
    animation: progress-glow 2s ease-in-out infinite alternate;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
}

.progress-label {
    font-size: 13px;
    color: var(--label-tertiary);
    font-weight: var(--font-weight-medium);
    opacity: 0.6;
    transition: all var(--transition-base);
}

.progress-label.active {
    color: var(--system-blue);
    opacity: 1;
    font-weight: var(--font-weight-semibold);
}



/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

@keyframes progress-glow {
    0% { box-shadow: 0 0 5px rgba(0, 122, 255, 0.3); }
    100% { box-shadow: 0 0 20px rgba(0, 122, 255, 0.6); }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .wip-title {
        background: linear-gradient(135deg, var(--label-primary), var(--system-blue-light));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    

}

/* Mobile Responsive */
@media (max-width: 768px) {
    .wip-hero {
        padding: var(--spacing-3xl) 0 var(--spacing-2xl);
        margin-bottom: var(--spacing-2xl);
    }
    
    .wip-symbol {
        font-size: 48px;
    }
    
    .wip-card {
        padding: var(--spacing-2xl);
    }
    
    .wip-features {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-item {
        padding: var(--spacing-lg);
    }
    

    
    .progress-labels {
        font-size: 12px;
    }
}

/* Footer */
.footer {
    margin-top: var(--spacing-4xl);
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
    border-top: 1px solid var(--system-gray-5);
    background: var(--background-secondary);
}
/* 404 Not Found Page */
.not-found {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl) 0;
}

.not-found-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--spacing-lg);
}

/* 404 Hero Section */
.not-found-hero {
    margin-bottom: var(--spacing-4xl);
}

.not-found-icon {
    margin-bottom: var(--spacing-2xl);
}

.icon-404 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.icon-4 {
    font-size: clamp(4rem, 8vw, 6rem);
    font-weight: var(--font-weight-bold);
    color: var(--accent-primary);
    text-shadow: 0 4px 8px rgba(0, 122, 255, 0.2);
}

.icon-circle {
    width: clamp(3rem, 6vw, 4rem);
    height: clamp(3rem, 6vw, 4rem);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    box-shadow: 
        0 8px 32px rgba(0, 122, 255, 0.3),
        0 4px 16px rgba(0, 0, 0, 0.1);
    animation: pulse 2s ease-in-out infinite;
}



/* System dark mode - Apple-like subtle styling */
@media (prefers-color-scheme: dark) {
    .icon-circle {
        background: linear-gradient(135deg, #2c2c2e, #3a3a3c);
        box-shadow: 
            0 8px 24px rgba(0, 0, 0, 0.25),
            0 4px 12px rgba(0, 0, 0, 0.15),
            0 1px 3px rgba(0, 0, 0, 0.1);
    }
    
    .icon-4 {
        /* color: #007aff; */
        text-shadow: none;
    }
    
    .not-found-title {
        color: #ffffff;
    }
    
    .not-found-subtitle {
        color: #8e8e93;
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

.not-found-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.not-found-subtitle {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 500px;
    margin: 0 auto;
}





/* Mobile Optimizations */
@media (max-width: 768px) {
    .not-found {
        min-height: 70vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .not-found-container {
        padding: 0 var(--spacing-md);
    }
    
    
    .icon-404 {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .not-found {
        padding: var(--spacing-xl) 0;
    }
    
    .not-found-hero {
        margin-bottom: var(--spacing-2xl);
    }
    

}

/* HERE! */
@media (max-width: 480px) {
.footer {
        margin-top: var(--spacing-2xl);
        padding: var(--spacing-2xl) 0 var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .footer {
        margin-top: var(--spacing-3xl);
        padding: var(--spacing-xl) 0 var(--spacing-4xl);
    }
}

.footer-container {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer p {
    color: var(--label-tertiary);
    font-size: 13px;
}

.footer .social-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer .social-links a {
    color: var(--label-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.footer .social-links a:hover {
    color: var(--system-blue);
}

/* Technology Icons */
.tech-icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--system-gray), var(--system-gray-light));
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: all var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tech-icon:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--system-blue);
}

/* Skill Category with Icons */
.skill-category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.skill-category-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

/* Card Hover Effects */
.skill-category {
    transition: all var(--transition-base);
}
.skill-category:hover {
    transform: translateY(-1px);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.08),
        0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Dark Mode Adjustments for Visual Elements */
@media (prefers-color-scheme: dark) {
    .tech-icon {
        background: var(--background-tertiary);
        border-color: var(--system-gray-4);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }
    
    .tech-icon:hover {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
        border-color: var(--system-blue);
    }
    
    .skill-category:hover, .contact-card:hover {
        box-shadow: 
            0 6px 20px rgba(0, 0, 0, 0.3),
            0 2px 8px rgba(0, 0, 0, 0.2);
    }
}

 

/* Loading States */
.loading {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--label-tertiary);
    font-style: italic;
}

/* Section Loading States */
.section-container {
    min-height: 100px;
}

.section-loading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 60px 20px;
    color: var(--label-secondary);
    background: var(--background-secondary);
    border-radius: 16px;
    margin: 24px 0;
    border: 1px solid var(--system-gray-5);
}

.section-loading .loading-spinner {
    margin-bottom: 16px;
}

.section-loading p {
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--label-tertiary);
}

@media (prefers-color-scheme: dark) {
    .section-loading {
        background: var(--background-tertiary);
        border-color: var(--system-gray-4);
    }
}

/* HTMX Transitions */
.htmx-request {
    opacity: 0.8;
    transition: opacity var(--transition-base);
}

/* HTMX Loading States - Apple Style */
.htmx-indicator {
    opacity: 0;
    transition: opacity var(--transition-fast);
    }
    
.htmx-request .htmx-indicator {
    opacity: 1;
    }
    
.htmx-request.htmx-swapping {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

/* Navigation Loading Indicator */
.nav-loading {
    position: absolute;
    top: 50%;
    right: var(--spacing-lg);
    transform: translateY(-50%);
    z-index: 10;
}

/* Button Loading States */
.btn {
    display: inline-flex;
        align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-3xl);
    text-decoration: none;
    font-size: 17px;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    min-height: 44px;
    position: relative;
    overflow: hidden;
    }
    
.btn-text {
    transition: opacity var(--transition-fast);
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* When HTMX request is active, dim the button text and show spinner */
.htmx-request .btn-text {
    opacity: 0.3;
}

.htmx-request .btn {
    pointer-events: none;
}

/* Apple-style Loading Spinner */
.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.nav-loading .loading-spinner {
    width: 12px;
    height: 12px;
    border-top-color: var(--system-blue);
}

.btn-primary .loading-spinner {
    border-top-color: white;
}

.btn-secondary .loading-spinner {
    border-top-color: var(--system-blue);
}

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

/* Navigation Loading Effect */
.htmx-request .navigation {
    background: rgba(255, 255, 255, 0.95);
}

@media (prefers-color-scheme: dark) {
    .htmx-request .navigation {
        background: rgba(28, 28, 30, 0.95);
    }
}

/* Content fade-in after swap */
#content {
    transition: opacity var(--transition-base);
}

.htmx-swapping #content {
    opacity: 0.8;
}

/* Additional Mobile Responsive */
@media (max-width: 768px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .social-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        gap: var(--spacing-sm);
    }
    
    .btn {
        max-width: 100%;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .footer-container {
        gap: var(--spacing-sm);
    }
}

/* Scroll animations */
.animate-out {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .animate-out {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Focus styles for accessibility */
.nav-link:focus,
.btn:focus,
.project-link:focus,
.social-link:focus {
    outline: 2px solid var(--system-blue);
    outline-offset: 2px;
}

/* Extra Small Mobile Optimizations */
@media (max-width: 360px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .navigation {
        bottom: var(--spacing-xs);
        left: var(--spacing-xs);
        right: var(--spacing-xs);
    }
    
    .nav-container {
        padding: var(--spacing-xs);
    }
    
    .hero {
        padding: var(--spacing-md) 0;
    }
    
    .hero h1 {
        font-size: clamp(24px, 12vw, 36px);
    }
    
    .hero-subtitle {
        font-size: clamp(14px, 6vw, 18px);
    }
    
    .hero-description {
        font-size: 14px;
    }
    
    section {
        margin: var(--spacing-md) 0;
    }
    
    section h2 {
        font-size: clamp(18px, 8vw, 24px);
        margin-bottom: var(--spacing-md);
    }
    
    .project-card,
    .stat-item,
    .highlight-card,
    .skill-category,
    .credential-card {
        padding: var(--spacing-md);
    }
    
    .experience-card {
        padding: var(--spacing-md);
    }
    
    .cta-section,
    .contact-section {
        padding: var(--spacing-md);
    }
    
    .about-hero {
        padding: var(--spacing-sm) 0;
    }
    
    main {
        padding-top: var(--spacing-lg);
        padding-bottom: 60px;
    }
}

/* Apple-Style Image Lightbox */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    /* Force repaint to fix backdrop-filter refresh issues */
    transform: translateZ(0);
    will-change: backdrop-filter;
}

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

.lightbox-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#lightbox-image {
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}



@media (max-width: 480px) {
    #lightbox-image {
        max-width: 80vw;
        max-height: 85vh;
    }
}

.lightbox-overlay.active #lightbox-image {
    transform: scale(1);
}

/* Close Button */
.lightbox-close {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-close:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .lightbox-close {
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 40px;
        height: 40px;
    }
}
@media (max-width: 480px) {
    .lightbox-close {
        width: 36px;
        height: 36px;
    }
}

/* Navigation Arrows */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
}

.lightbox-nav.visible {
    opacity: 1;
    visibility: visible;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.lightbox-prev {
    left: var(--spacing-xl);
}

.lightbox-next {
    right: var(--spacing-xl);
}

@media (max-width: 768px) {
    .lightbox-nav {
        width: 50px;
        height: 50px;
    }
    
    .lightbox-prev {
        left: var(--spacing-lg);
    }
    
    .lightbox-next {
        right: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .lightbox-nav {
        width: 36px;
        height: 36px;
        background: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
    
    .lightbox-prev {
        left: var(--spacing-md);
    }
    
    .lightbox-next {
        right: var(--spacing-md);
    }
}

/* Image Counter */
.lightbox-info {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-2xl);
    z-index: 10;
}

.lightbox-counter {
    color: white;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
}

@media (max-width: 768px) {
    .lightbox-info {
        bottom: var(--spacing-lg);
    }
}

/* Gallery Item Cursor */
.gallery-item {
    cursor: pointer;
}

.gallery-item:hover {
    cursor: zoom-in;
}

/* Touch feedback for mobile */
@media (hover: none) and (pointer: coarse) {
    .lightbox-nav:hover {
        transform: translateY(-50%);
        background: rgba(255, 255, 255, 0.1);
    }
    
    .lightbox-close:hover {
        transform: none;
        background: rgba(255, 255, 255, 0.1);
    }
}

/* Focus styles for accessibility */
.lightbox-close:focus,
.lightbox-nav:focus {
    outline: 2px solid var(--system-blue);
    outline-offset: 2px;
}