/* CSS Variables */
:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #6b6b6b;
    --color-accent: #ffd700;
    --color-accent-hover: #ffed4e;
    --color-tab-inactive: #f5f5f5;
    --color-tab-active: #ffd700;
    --color-border: #e0e0e0;
    
    /* Gradient Color Schemes */
    --gradient-blue-1: #667eea;
    --gradient-blue-2: #764ba2;
    --gradient-purple-1: #f093fb;
    --gradient-purple-2: #f5576c;
    --gradient-green-1: #4facfe;
    --gradient-green-2: #00f2fe;
    --gradient-orange-1: #fa709a;
    --gradient-orange-2: #fee140;
    --gradient-teal-1: #30cfd0;
    --gradient-teal-2: #330867;
    --gradient-pink-1: #a8edea;
    --gradient-pink-2: #fed6e3;
    --gradient-indigo-1: #5f72bd;
    --gradient-indigo-2: #9921e8;
    --gradient-cyan-1: #00c9ff;
    --gradient-cyan-2: #92fe9d;
    --gradient-coral-1: #ff6e7f;
    --gradient-coral-2: #bfe9ff;
    --gradient-violet-1: #8360c3;
    --gradient-violet-2: #2ebf91;
    --gradient-amber-1: #fad961;
    --gradient-amber-2: #f76b1c;
    
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

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

/* Navigation Bar */
.nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 400;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--color-text-light);
}

.nav-link.active {
    color: var(--color-text);
    font-weight: 500;
}

/* Main Container */
.main-container {
    margin-top: 80px;
    padding: var(--spacing-lg) var(--spacing-lg);
    min-height: calc(100vh - 80px);
    position: relative;
    padding-bottom: 250px;
}

/* Title Section */
.title-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
}

.main-title {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 8vw, 8rem);
    font-weight: 400;
    line-height: 1;
    color: var(--color-text);
    margin: 0;
}

.archive-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 6vw, 6rem);
    font-weight: 400;
    line-height: 1;
    color: var(--color-text-light);
    opacity: 0.3;
    margin: 0;
    cursor: pointer;
    transition: all var(--transition-base);
    user-select: none;
}

.archive-title:hover {
    opacity: 0.6;
    color: var(--color-text);
}

.archive-title.active {
    opacity: 1;
    color: var(--color-text);
}

/* Category Container */
.category-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0;
    min-height: auto;
    padding-top: 0;
    z-index: 10;
}

/* Category Preview (Hover Thumbnails) */
.category-preview {
    position: absolute;
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: flex-end;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 0;
    width: auto;
    padding: 0;
    margin-bottom: 0;
}

.category-preview.visible {
    opacity: 1;
    pointer-events: auto;
}

.preview-card {
    position: relative;
    width: 320px;
    height: 240px;
    transform-origin: center bottom;
    transform: rotate(calc(-8deg + var(--index, 0) * 5deg)) translateY(180px) scale(0.3);
    opacity: 0;
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background-color: var(--color-bg);
    will-change: transform, opacity;
}

.preview-card.visible {
    opacity: 1;
    transform: rotate(calc(-8deg + var(--index, 0) * 5deg)) translateY(-60px) scale(1);
}

.preview-card:nth-child(1) {
    z-index: 3;
}

.preview-card:nth-child(2) {
    z-index: 2;
    margin-left: -40px;
}

.preview-card:nth-child(3) {
    z-index: 1;
    margin-left: -40px;
}

.preview-card:hover {
    transform: rotate(calc(-8deg + var(--index, 0) * 5deg)) translateY(-80px) scale(1.1);
    z-index: 102;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

.preview-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.preview-card:hover .preview-thumbnail {
    transform: scale(1.1);
}

/* Animated gradient placeholder in preview cards */
.preview-card .animated-gradient-placeholder {
    width: 100%;
    height: 100%;
    min-height: 240px;
    border-radius: 8px;
}

.preview-card .animated-gradient-placeholder span {
    font-size: 0.9rem;
    padding: var(--spacing-sm);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.category-tabs {
    display: flex;
    flex-direction: row;
    gap: 0;
    width: 100%;
    margin: 0;
    position: relative;
    align-items: flex-end;
}

/* Category Tab */
.category-tab {
    position: relative;
    padding: var(--spacing-lg) var(--spacing-xl);
    background-color: var(--color-tab-inactive);
    cursor: pointer;
    transition: all var(--transition-base);
    clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 100%, 0 100%);
    border: none;
    text-align: left;
    font-family: var(--font-sans);
    z-index: 5;
    margin-left: 0;
    margin-right: -20px;
    flex: 1;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.category-tab:hover {
    background-color: var(--color-tab-inactive);
    transform: translateY(-2px);
}

.category-tab.active {
    background-color: var(--color-tab-active);
    z-index: 10;
    transform: translateX(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin-right: -15px;
}

.category-tab-number {
    font-size: 1.25rem;
    color: var(--color-text-light);
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.category-tab.active .category-tab-number {
    color: var(--color-text);
    font-weight: 400;
}

.category-tab-name {
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--color-text);
    font-family: var(--font-serif);
    display: block;
    line-height: 1.2;
}

/* Projects Container */
.projects-container {
    margin-top: var(--spacing-xl);
    padding: 0 var(--spacing-md);
    min-height: 500px;
    margin-bottom: 250px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

/* Project Card */
.project-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
    position: relative;
    text-decoration: none;
}

.project-card,
.project-card * {
    text-decoration: none;
}

.project-card:hover,
.project-card:hover * {
    text-decoration: none;
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.project-thumbnail {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background-color: var(--color-tab-inactive);
    display: block;
}

/* Animated gradient placeholder in project cards */
.project-card .animated-gradient-placeholder {
    width: 100%;
    height: 250px;
    min-height: 250px;
    border-radius: 0;
}

.project-card .animated-gradient-placeholder span {
    font-size: 1.2rem;
    padding: var(--spacing-sm);
    font-weight: 600;
}

.project-info {
    padding: var(--spacing-md);
}

.project-type-chip {
    display: inline-block !important;
    padding: 0.4rem 0.9rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: 20px;
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    font-family: var(--font-sans);
    pointer-events: auto;
    white-space: nowrap;
    cursor: help;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-type-chip:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.project-type-personal-freelance {
    background-color: rgba(255, 193, 7, 0.9);
    color: #1a1a1a;
}

.project-type-company {
    background-color: rgba(33, 150, 243, 0.9);
    color: #ffffff;
}

.project-type-personal {
    background-color: rgba(156, 39, 176, 0.9);
    color: #ffffff;
}

/* Project Type Tooltip */
.project-type-tooltip {
    position: absolute;
    background-color: rgba(26, 26, 26, 0.95);
    color: #ffffff;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: var(--font-sans);
    line-height: 1.4;
    max-width: 280px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    pointer-events: none;
    animation: tooltipFadeIn 0.2s ease-out;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-type-tooltip-arrow {
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.project-type-tooltip-arrow.arrow-top {
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px 6px 0 6px;
    border-color: rgba(26, 26, 26, 0.95) transparent transparent transparent;
}

.project-type-tooltip-arrow.arrow-bottom {
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 6px 6px 6px;
    border-color: transparent transparent rgba(26, 26, 26, 0.95) transparent;
}

.project-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    text-decoration: none;
}

.project-description {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Footer */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-text-light);
}

.footer-signature {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Page Content Styles */
.page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

/* Home Page Styles */
.home-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 6vw, 6rem);
    font-weight: 400;
    line-height: 1;
    color: var(--color-text-light);
    opacity: 0.3;
    margin: 0;
    margin-top: var(--spacing-xs);
}

.home-intro-section {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin: var(--spacing-xl) 0;
    padding: 0 var(--spacing-md);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.intro-graphic-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.intro-graphic {
    width: 300px;
    height: 300px;
    position: relative;
}

.graphic-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-text);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.graphic-placeholder video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 50%;
}

.graphic-placeholder span {
    position: absolute;
    z-index: 1;
    pointer-events: none;
}

.graphic-placeholder:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.2);
}

.intro-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.intro-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.intro-tagline {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin: var(--spacing-xs) 0;
}

.intro-location {
    font-size: 1rem;
    color: var(--color-text-light);
    opacity: 0.7;
    margin-top: var(--spacing-xs);
}

.home-summary-section,
.home-skills-section {
    max-width: 1200px;
    margin: var(--spacing-xl) auto;
    padding: 0 var(--spacing-md);
}

.section-label {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.6;
}

.summary-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.summary-text {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin: 0;
}

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

.skill-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-tab-inactive);
    color: var(--color-text);
    font-size: 0.875rem;
    border-radius: 20px;
    transition: all var(--transition-base);
    position: relative;
    cursor: help;
}

.skill-tag:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}

/* Tooltip Styles */
.skill-tag[data-tooltip] {
    position: relative;
}

.skill-tag[data-tooltip]:hover::before,
.skill-tag[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.skill-tag[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-text);
    color: var(--color-bg);
    font-size: 0.8125rem;
    line-height: 1.6;
    border-radius: 8px;
    white-space: nowrap;
    max-width: 300px;
    white-space: normal;
    width: max-content;
    max-width: 280px;
    text-align: left;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    transform: translateX(-50%) translateY(-8px);
    font-weight: 400;
}

.skill-tag[data-tooltip]::after {
    content: '';
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--color-text);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    transform: translateX(-50%) translateY(-8px);
}

.skill-tag[data-tooltip]:hover::before {
    transform: translateX(-50%) translateY(0);
}

.skill-tag[data-tooltip]:hover::after {
    transform: translateX(-50%) translateY(0);
}

/* Adjust tooltip position for edge cases */
.skills-list .skill-tag:first-child[data-tooltip]::before,
.skills-list .skill-tag:first-child[data-tooltip]::after {
    left: 0;
    transform: translateX(0) translateY(-8px);
}

.skills-list .skill-tag:first-child[data-tooltip]:hover::before,
.skills-list .skill-tag:first-child[data-tooltip]:hover::after {
    transform: translateX(0) translateY(0);
}

.skills-list .skill-tag:last-child[data-tooltip]::before,
.skills-list .skill-tag:last-child[data-tooltip]::after {
    left: auto;
    right: 0;
    transform: translateX(0) translateY(-8px);
}

.skills-list .skill-tag:last-child[data-tooltip]:hover::before,
.skills-list .skill-tag:last-child[data-tooltip]:hover::after {
    transform: translateX(0) translateY(0);
}

.home-cta-section {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
    padding: 0 var(--spacing-md);
}

.home-cta-prominent {
    margin: var(--spacing-xl) auto calc(var(--spacing-xl) * 1.5);
    max-width: 600px;
    padding: var(--spacing-lg) var(--spacing-md);
}

.home-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-accent);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
}

.home-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.home-cta:hover::before {
    left: 100%;
}

.home-cta:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.2em;
}

.home-cta:active {
    transform: translateY(-2px) scale(0.98);
}

.home-cta-primary {
    background-color: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-accent);
}

.home-cta-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-text);
    position: relative;
}

.home-cta-secondary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: var(--color-text);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
    border-radius: 50px;
}

.home-cta-secondary:hover {
    color: var(--color-bg);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.2em;
}

.home-cta-secondary:hover::after {
    width: 100%;
}

.home-cta-cv {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    font-weight: 700;
}

.home-cta-cv::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.home-cta-cv:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    color: #ffffff;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.6);
    letter-spacing: 0.2em;
}

.home-cta-cv:active {
    transform: translateY(-2px) scale(0.98);
}

/* Scroll Indicator */
.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-xl) 0;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.scroll-indicator-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}

.scroll-indicator-text {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    opacity: 0.6;
}

/* Scroll Reveal Animation */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Opportunities and Challenges Grid */
.opportunities-challenges-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.oc-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.oc-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.oc-title-icon {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.oc-item {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.oc-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-accent);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.oc-item:hover {
    transform: translateX(8px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.03) 100%);
    border-color: var(--color-accent);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.oc-item:hover::before {
    transform: scaleY(1);
}

.oc-opportunity {
    border-left: 4px solid var(--color-accent);
}

.oc-challenge {
    border-left: 4px solid #ff6b6b;
}

.oc-challenge::before {
    background: #ff6b6b;
}

.oc-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}

.oc-item-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: 12px;
    color: var(--color-accent);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.oc-item-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

.oc-challenge .oc-item-icon {
    color: #ff6b6b;
}

.oc-item:hover .oc-item-icon {
    transform: rotate(5deg) scale(1.1);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.1) 100%);
}

.oc-item-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    color: var(--color-text-light);
    opacity: 0.3;
    line-height: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.oc-item:hover .oc-item-number {
    opacity: 0.6;
    transform: scale(1.1);
}

.oc-item-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
    font-family: var(--font-serif);
    transition: color 0.3s ease;
}

.oc-item:hover .oc-item-title {
    color: var(--color-accent);
}

.oc-challenge:hover .oc-item-title {
    color: #ff6b6b;
}

.oc-item-text {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.8;
    margin: 0;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.oc-item:hover .oc-item-text {
    opacity: 1;
}

.goals-section {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
}

.goals-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (max-width: 768px) {
    .opportunities-challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .oc-title {
        font-size: 1.5rem;
    }
    
    .oc-title-icon {
        width: 28px;
        height: 28px;
    }
    
    .oc-item {
        padding: var(--spacing-md);
    }
    
    .oc-item-icon {
        width: 40px;
        height: 40px;
    }
    
    .oc-item-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .oc-item-number {
        font-size: 1.5rem;
    }
    
    .oc-item:hover {
        transform: translateX(4px);
    }
}

.about-content {
    margin-top: var(--spacing-xl);
}

.about-text {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.contact-content {
    margin-top: var(--spacing-xl);
}

.contact-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-link {
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-base);
    font-family: var(--font-serif);
}

.contact-link:hover {
    color: var(--color-text-light);
}

/* Experience Section Styles */
.experience-section,
.education-section,
.certifications-section,
.languages-section {
    margin-top: var(--spacing-xl);
}

.experience-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.experience-item:last-child {
    border-bottom: none;
}

.experience-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.experience-company {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0;
}

.experience-role {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
}

.experience-period,
.experience-location {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.experience-summary {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.experience-achievements {
    list-style: none;
    padding: 0;
    margin: 0;
}

.experience-achievements li {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
}

.experience-achievements li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--color-text-light);
}

.experience-achievements li strong {
    color: var(--color-text);
    font-weight: 500;
}

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

.education-institution {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-xs);
}

.education-degree {
    font-size: 1rem;
    color: var(--color-text);
    margin: 0 0 var(--spacing-xs);
}

.education-period {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin: 0;
}

.certifications-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.certifications-list li {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
}

.certifications-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

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

.language-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-tab-inactive);
    color: var(--color-text);
    font-size: 0.875rem;
    border-radius: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.contact-item .contact-link {
    font-size: 1.125rem;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-base);
    font-family: var(--font-serif);
}

.contact-item .contact-link:hover {
    color: var(--color-text-light);
}

.contact-item span.contact-link {
    color: var(--color-text);
    font-family: var(--font-serif);
}

/* Case Study Page Styles */
.case-study-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-bottom: 250px;
}

.case-study-back {
    margin-bottom: var(--spacing-lg);
}

.back-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.back-link:hover {
    color: var(--color-text-light);
}

.case-study-hero {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.case-study-cover-image a {
    display: block;
    width: 100%;
    height: 100%;
    transition: opacity 0.3s ease;
}

.case-study-cover-image a:hover {
    opacity: 0.9;
}

.case-study-cover-image a img {
    width: 100%;
    height: auto;
    display: block;
}

.case-study-cover-image {
    width: 100%;
    margin-bottom: var(--spacing-xl);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.case-study-cover-image img {
    width: 100%;
    height: auto;
    display: block;
}

.case-study-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.case-study-tags {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.case-study-read-time {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.case-study-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
    line-height: 1.2;
}

.case-study-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    font-weight: 400;
    margin: 0 0 var(--spacing-xl);
    line-height: 1.6;
}

.case-study-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.meta-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.meta-value {
    font-size: 1rem;
    color: var(--color-text);
}

.case-study-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg) 0;
}

.case-study-section-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.case-study-section-heading {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md);
    line-height: 1.3;
}

.case-study-text {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.case-study-text:last-child {
    margin-bottom: 0;
}

.case-study-image-placeholder {
    margin: var(--spacing-xl) 0;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
}

.case-study-image {
    margin: var(--spacing-xl) 0;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.case-study-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.case-study-image:hover img {
    transform: scale(1.02);
}

.case-study-video {
    margin: var(--spacing-xl) 0;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background-color: var(--color-tab-inactive);
}

.case-study-video video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

/* Persona Cards Styles */
.persona-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.persona-card-full-width {
    grid-column: 1 / -1;
}

.persona-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.persona-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.persona-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.persona-image-circle {
    width: 120px;
    height: 120px;
    min-width: 120px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.persona-image-circle img,
.persona-image-circle video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.persona-basic-info {
    flex: 1;
}

.persona-name {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background-color var(--transition-base);
}

.persona-name:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    background-color: rgba(255, 255, 255, 0.05);
}

.persona-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.persona-detail {
    font-size: 0.875rem;
    color: var(--color-text-light);
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background-color var(--transition-base);
}

.persona-detail:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    background-color: rgba(255, 255, 255, 0.05);
}

.persona-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.persona-summary,
.persona-biography {
    grid-column: 1 / -1;
}

.persona-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0;
}

.persona-list li {
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-xs);
    padding: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
    border-radius: 4px;
    transition: background-color var(--transition-base);
}

.persona-list li:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    background-color: rgba(255, 255, 255, 0.05);
}

.persona-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.5rem;
    line-height: 1;
}

.persona-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0 0 var(--spacing-sm);
}

.persona-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--color-text);
    margin: 0;
    padding: var(--spacing-sm);
    border-radius: 4px;
    min-height: 100px;
    transition: background-color var(--transition-base);
}

.persona-text:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    background-color: rgba(255, 255, 255, 0.05);
}

.persona-sliders {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.persona-slider-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.slider-label {
    font-size: 0.75rem;
    color: var(--color-text-light);
    min-width: 80px;
    text-align: right;
}

.slider-label:last-child {
    text-align: left;
    min-width: 100px;
}

.slider-track {
    flex: 1;
    height: 8px;
    background-color: var(--color-tab-inactive);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.slider-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-text-light) 100%);
    border-radius: 4px;
    transition: width var(--transition-base);
}

/* Responsive adjustments for persona cards */
@media (max-width: 768px) {
    .persona-cards {
        grid-template-columns: 1fr;
    }
    
    .persona-content {
        grid-template-columns: 1fr;
    }
    
    .persona-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .persona-image-circle {
        width: 100px;
        height: 100px;
        min-width: 100px;
    }
    
    .persona-name {
        font-size: 1.5rem;
        text-align: center;
    }
    
    .persona-details {
        align-items: center;
    }
    
    .slider-label {
        min-width: 60px;
        font-size: 0.7rem;
    }
    
    .slider-label:last-child {
        min-width: 80px;
    }
}

.image-placeholder-box {
    width: 100%;
    min-height: 400px;
    background: linear-gradient(135deg, var(--color-tab-inactive) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text);
    opacity: 0.7;
    border-radius: 12px;
}

.animated-gradient-placeholder {
    width: 100%;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: #ffffff;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(
        135deg,
        var(--gradient-color-1, var(--gradient-blue-1)) 0%,
        var(--gradient-color-2, var(--gradient-blue-2)) 25%,
        var(--gradient-color-1, var(--gradient-blue-1)) 50%,
        var(--gradient-color-2, var(--gradient-blue-2)) 75%,
        var(--gradient-color-1, var(--gradient-blue-1)) 100%
    );
    background-size: 300% 300%;
    animation: gradientShift 8s ease infinite;
}

/* Gradient Color Schemes for Different Projects */
.animated-gradient-placeholder.gradient-blue {
    --gradient-color-1: var(--gradient-blue-1);
    --gradient-color-2: var(--gradient-blue-2);
}

.animated-gradient-placeholder.gradient-purple {
    --gradient-color-1: var(--gradient-purple-1);
    --gradient-color-2: var(--gradient-purple-2);
}

.animated-gradient-placeholder.gradient-green {
    --gradient-color-1: var(--gradient-green-1);
    --gradient-color-2: var(--gradient-green-2);
}

.animated-gradient-placeholder.gradient-orange {
    --gradient-color-1: var(--gradient-orange-1);
    --gradient-color-2: var(--gradient-orange-2);
}

.animated-gradient-placeholder.gradient-teal {
    --gradient-color-1: var(--gradient-teal-1);
    --gradient-color-2: var(--gradient-teal-2);
}

.animated-gradient-placeholder.gradient-pink {
    --gradient-color-1: var(--gradient-pink-1);
    --gradient-color-2: var(--gradient-pink-2);
}

.animated-gradient-placeholder.gradient-indigo {
    --gradient-color-1: var(--gradient-indigo-1);
    --gradient-color-2: var(--gradient-indigo-2);
}

.animated-gradient-placeholder.gradient-cyan {
    --gradient-color-1: var(--gradient-cyan-1);
    --gradient-color-2: var(--gradient-cyan-2);
}

.animated-gradient-placeholder.gradient-coral {
    --gradient-color-1: var(--gradient-coral-1);
    --gradient-color-2: var(--gradient-coral-2);
}

.animated-gradient-placeholder.gradient-violet {
    --gradient-color-1: var(--gradient-violet-1);
    --gradient-color-2: var(--gradient-violet-2);
}

.animated-gradient-placeholder.gradient-amber {
    --gradient-color-1: var(--gradient-amber-1);
    --gradient-color-2: var(--gradient-amber-2);
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        opacity: 0.3;
        transform: translateX(-100%);
    }
    50% {
        opacity: 0.6;
        transform: translateX(100%);
    }
}

.animated-gradient-placeholder span {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.4);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.case-study-images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.case-study-image {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.case-study-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.case-study-image:hover img {
    transform: scale(1.05);
}

.case-study-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.case-study-list li {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
    position: relative;
}

.case-study-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 1.5rem;
    line-height: 1;
}

.case-study-disclaimer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.case-study-disclaimer p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-style: italic;
}

.case-study-subheading {
    font-size: 1.25rem;
    color: var(--color-text-light);
    font-weight: 400;
    margin: 0 0 var(--spacing-md);
    font-style: italic;
}

.case-study-subsection {
    margin: var(--spacing-lg) 0;
}

.case-study-subsection-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.case-study-icon-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    opacity: 0.3;
}

.case-study-icon {
    width: 80px;
    height: 80px;
    color: var(--color-text);
    stroke: currentColor;
    fill: none;
}

@media (max-width: 768px) {
    .case-study-icon {
        width: 60px;
        height: 60px;
    }
}

.expandable-image {
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.expandable-image:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* Lightbox Styles */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    animation: fadeIn 0.3s ease;
}

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

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #fff;
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    line-height: 1;
    transition: transform var(--transition-base);
    z-index: 10000;
}

.lightbox-close:hover {
    transform: scale(1.2);
}

.lightbox-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 1rem;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.7);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    max-width: 80%;
}

/* Contact Form Styles */
.contact-page {
    max-width: 1000px;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.contact-inline-link {
    color: var(--color-text);
    text-decoration: underline;
    transition: color var(--transition-base);
}

.contact-inline-link:hover {
    color: var(--color-text-light);
}

.contact-form-container {
    background-color: var(--color-bg);
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: all var(--transition-base);
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.contact-form textarea {
    min-height: 150px;
    font-family: var(--font-sans);
}

.form-submit-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-base);
    align-self: flex-start;
}

.form-submit-btn:hover {
    background-color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.form-submit-btn:active {
    transform: translateY(0);
}

.form-message {
    padding: var(--spacing-md);
    border-radius: 6px;
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Story Section Styles */
.story-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl) 0;
}

.story-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

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

.story-cta-secondary {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-text);
}

.story-cta-secondary:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
}

.story-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md);
    line-height: 1.2;
}

.wave-emoji {
    display: inline-block;
    animation: wave 2.5s ease-in-out infinite;
    transform-origin: 70% 70%;
}

/* Name glitch effect */
.name-glitch {
    position: relative;
    display: inline-block;
    cursor: help;
    transition: transform 0.15s ease-out, text-shadow 0.15s ease-out;
    padding-right: 0.3em;
    margin-right: 0.2em;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    box-sizing: content-box;
    will-change: transform, text-shadow;
}

.name-glitch::before {
    content: '✨';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.5em;
    opacity: 0.4;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
    animation: sparkleIdle 2s ease-in-out infinite;
}

.name-glitch:hover::before {
    opacity: 1;
    animation: sparkleIndicator 1s ease-in-out infinite;
    transform: translateY(-50%) scale(1.3);
}

@keyframes sparkleIdle {
    0%, 100% {
        opacity: 0.4;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translateY(-50%) scale(1.1);
    }
}

.name-glitch:hover {
    animation: glitch 0.6s infinite;
}

@keyframes sparkleIndicator {
    0%, 100% {
        opacity: 0.6;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translateY(-50%) scale(1.2);
    }
}

@keyframes glitch {
    0%, 100% {
        transform: translate(0);
        text-shadow: 0 0 0 transparent;
    }
    25% {
        transform: translate(-1px, 1px);
        text-shadow: 1px 0 rgba(255, 0, 255, 0.5), -1px 0 rgba(0, 255, 255, 0.5);
    }
    50% {
        transform: translate(1px, -1px);
        text-shadow: -1px 0 rgba(255, 0, 255, 0.5), 1px 0 rgba(0, 255, 255, 0.5);
    }
    75% {
        transform: translate(-0.5px, -0.5px);
        text-shadow: 1px 0 rgba(0, 255, 255, 0.4), -1px 0 rgba(255, 0, 255, 0.4);
    }
}

.name-glitch.glitching {
    animation: glitchCycle 0.3s steps(2) infinite;
}

@keyframes glitchCycle {
    0%, 100% {
        transform: translate(0);
        text-shadow: 1px 0 rgba(255, 0, 255, 0.4), -1px 0 rgba(0, 255, 255, 0.4);
    }
    50% {
        transform: translate(0.5px, 0.5px);
        text-shadow: -1px 0 rgba(255, 0, 255, 0.4), 1px 0 rgba(0, 255, 255, 0.4);
    }
}

@keyframes wave {
    0%, 100% {
        transform: rotate(0deg);
    }
    10% {
        transform: rotate(14deg);
    }
    20% {
        transform: rotate(-8deg);
    }
    30% {
        transform: rotate(14deg);
    }
    40% {
        transform: rotate(-4deg);
    }
    50% {
        transform: rotate(10deg);
    }
    60% {
        transform: rotate(0deg);
    }
}

.story-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin: 0 0 var(--spacing-xl);
}

.story-cta {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-text);
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 6px;
    transition: all var(--transition-base);
}

.story-cta:hover {
    background-color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.story-with-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin: var(--spacing-xl) 0;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.story-reverse {
    direction: rtl;
}

.story-reverse > * {
    direction: ltr;
}

.story-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-accent);
    font-style: italic;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.story-heading {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md);
    line-height: 1.3;
}

.story-text {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.story-text:last-child {
    margin-bottom: 0;
}

.story-text.highlight {
    background-color: var(--color-accent);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    display: inline-block;
}

.story-image-placeholder {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    overflow: hidden;
}

.story-image-box {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-tab-inactive) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text);
    opacity: 0.7;
    position: relative;
    overflow: hidden;
}

.story-visual-svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* Smooth transitions for mouse interaction */
.story-visual-svg * {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
}

.story-visual-creative-spark .drawing-line,
.story-visual-creative-spark .creative-shape,
.story-visual-creative-spark .sparkle,
.story-visual-creative-spark .creative-circle {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.story-visual-voip .phone-device,
.story-visual-voip .phone-screen,
.story-visual-voip .wave,
.story-visual-voip .network-node,
.story-visual-voip .network-line {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.story-visual-systems .system-node,
.story-visual-systems .system-node-small,
.story-visual-systems .system-line {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.story-visual-ai .neuron,
.story-visual-ai .neural-connections line,
.story-visual-ai .data-box,
.story-visual-ai .neural-layer {
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Creative Spark animations - Drawing coming to life */
.story-visual-creative-spark .drawing-line {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    opacity: 0;
    animation: drawLineCreative 3s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-creative-spark .drawing-line:nth-child(2) {
    animation-delay: 0.5s;
}

.story-visual-creative-spark .creative-circle {
    opacity: 0;
    transform: scale(0);
    animation: appearAndPulse 4s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
    animation-delay: 1.5s;
}

.story-visual-creative-spark .creative-shape {
    opacity: 0;
    transform: translateY(10px) scale(0.8);
    animation: floatIn 4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-creative-spark .creative-shape:nth-child(4) {
    animation-delay: 2s;
}

.story-visual-creative-spark .creative-shape:nth-child(5) {
    animation-delay: 2.5s;
}

.story-visual-creative-spark .sparkle {
    opacity: 0;
    transform: scale(0) rotate(0deg);
    animation: sparkleTwinkle 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-creative-spark .sparkle:nth-child(1) {
    animation-delay: 1s;
}

.story-visual-creative-spark .sparkle:nth-child(2) {
    animation-delay: 2.2s;
}

@keyframes drawLineCreative {
    0% {
        stroke-dashoffset: 100;
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    60% {
        stroke-dashoffset: 0;
        opacity: 1;
    }
    80% {
        opacity: 0.8;
    }
    100% {
        stroke-dashoffset: 0;
        opacity: 0.6;
    }
}

@keyframes appearAndPulse {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    20% {
        opacity: 0.8;
        transform: scale(1.1);
    }
    40%, 60% {
        opacity: 0.6;
        transform: scale(1);
    }
    80% {
        opacity: 0.8;
        transform: scale(1.05);
    }
    100% {
        opacity: 0.5;
        transform: scale(1);
    }
}

@keyframes floatIn {
    0% {
        opacity: 0;
        transform: translateY(10px) scale(0.8);
    }
    30% {
        opacity: 0.6;
        transform: translateY(0) scale(1);
    }
    60% {
        opacity: 0.5;
        transform: translateY(-3px) scale(1);
    }
    100% {
        opacity: 0.4;
        transform: translateY(0) scale(1);
    }
}

@keyframes sparkleTwinkle {
    0% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    30% {
        opacity: 1;
        transform: scale(1.3) rotate(180deg);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1) rotate(360deg);
    }
    70% {
        opacity: 1;
        transform: scale(1.2) rotate(540deg);
    }
    100% {
        opacity: 0.6;
        transform: scale(1) rotate(720deg);
    }
}

/* VOIP animations - Communication and connection */
.story-visual-voip .phone-device {
    animation: phoneActive 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-voip .phone-screen {
    opacity: 0;
    animation: screenActivate 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    animation-delay: 0.3s;
}

.story-visual-voip .phone-button {
    opacity: 0;
    animation: buttonGlow 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    animation-delay: 0.6s;
}

.story-visual-voip .wave {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    opacity: 0;
    animation: waveFlowOut 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-voip .wave:nth-child(1) {
    animation-delay: 0.8s;
}

.story-visual-voip .wave:nth-child(2) {
    animation-delay: 1.1s;
}

.story-visual-voip .wave:nth-child(3) {
    animation-delay: 1.4s;
}

.story-visual-voip .network-node {
    opacity: 0;
    transform: scale(0);
    animation: nodeConnect 3s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}

.story-visual-voip .network-node:nth-child(1) {
    animation-delay: 1.2s;
}

.story-visual-voip .network-node:nth-child(2) {
    animation-delay: 1.5s;
}

.story-visual-voip .network-node:nth-child(3) {
    animation-delay: 1.8s;
}

.story-visual-voip .network-line {
    stroke-dasharray: 30;
    stroke-dashoffset: 30;
    opacity: 0;
    animation: connectionFlow 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-voip .network-line:nth-child(1) {
    animation-delay: 1.8s;
}

.story-visual-voip .network-line:nth-child(2) {
    animation-delay: 2.1s;
}

@keyframes phoneActive {
    0%, 100% {
        transform: scale(1) translateY(0);
        opacity: 0.7;
    }
    25% {
        transform: scale(1.03) translateY(-2px);
        opacity: 0.9;
    }
    50% {
        transform: scale(1.05) translateY(0);
        opacity: 1;
    }
    75% {
        transform: scale(1.03) translateY(-1px);
        opacity: 0.9;
    }
}

@keyframes screenActivate {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    30% {
        opacity: 0.8;
        transform: scale(1.05);
    }
    60% {
        opacity: 0.7;
        transform: scale(1);
    }
    100% {
        opacity: 0.6;
        transform: scale(1);
    }
}

@keyframes buttonGlow {
    0% {
        opacity: 0;
        transform: scaleX(0.5);
    }
    40% {
        opacity: 0.8;
        transform: scaleX(1.1);
    }
    60% {
        opacity: 0.7;
        transform: scaleX(1);
    }
    100% {
        opacity: 0.6;
        transform: scaleX(1);
    }
}

@keyframes waveFlowOut {
    0% {
        stroke-dashoffset: 50;
        opacity: 0;
    }
    20% {
        opacity: 0.6;
    }
    60% {
        stroke-dashoffset: 0;
        opacity: 0.8;
    }
    80% {
        opacity: 0.5;
    }
    100% {
        stroke-dashoffset: -20;
        opacity: 0;
    }
}

@keyframes nodeConnect {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    30% {
        opacity: 0.8;
        transform: scale(1.3);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
    70% {
        opacity: 0.9;
        transform: scale(1.2);
    }
    100% {
        opacity: 0.6;
        transform: scale(1);
    }
}

@keyframes connectionFlow {
    0% {
        stroke-dashoffset: 30;
        opacity: 0;
    }
    30% {
        opacity: 0.5;
    }
    60% {
        stroke-dashoffset: 0;
        opacity: 0.7;
    }
    80% {
        opacity: 0.5;
    }
    100% {
        stroke-dashoffset: -10;
        opacity: 0.3;
    }
}

/* Systems Thinking animations - Interconnected systems activating */
.story-visual-systems .system-node {
    opacity: 0;
    transform: scale(0);
    animation: systemNodeActivate 4s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}

.story-visual-systems .system-node:nth-child(1) {
    animation-delay: 0s;
}

.story-visual-systems .system-node:nth-child(2) {
    animation-delay: 0.4s;
}

.story-visual-systems .system-node:nth-child(3) {
    animation-delay: 0.8s;
}

.story-visual-systems .system-node:nth-child(4) {
    animation-delay: 1.2s;
}

.story-visual-systems .system-node:nth-child(5) {
    animation-delay: 1.6s;
}

.story-visual-systems .system-line {
    stroke-dasharray: 120;
    stroke-dashoffset: 120;
    opacity: 0;
    animation: systemConnectFlow 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-systems .system-line:nth-child(1) {
    animation-delay: 0.6s;
}

.story-visual-systems .system-line:nth-child(2) {
    animation-delay: 1s;
}

.story-visual-systems .system-line:nth-child(3) {
    animation-delay: 1.4s;
}

.story-visual-systems .system-line:nth-child(4) {
    animation-delay: 1.8s;
}

.story-visual-systems .system-node-small {
    opacity: 0;
    transform: scale(0);
    animation: smallNodeActivate 3s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}

.story-visual-systems .system-node-small:nth-child(1) {
    animation-delay: 2s;
}

.story-visual-systems .system-node-small:nth-child(2) {
    animation-delay: 2.3s;
}

.story-visual-systems .system-node-small:nth-child(3) {
    animation-delay: 2.6s;
}

.story-visual-systems .system-node-small:nth-child(4) {
    animation-delay: 2.9s;
}

@keyframes systemNodeActivate {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    25% {
        opacity: 0.9;
        transform: scale(1.15);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
    75% {
        opacity: 0.95;
        transform: scale(1.1);
    }
    100% {
        opacity: 0.7;
        transform: scale(1);
    }
}

@keyframes systemConnectFlow {
    0% {
        stroke-dashoffset: 120;
        opacity: 0;
    }
    20% {
        opacity: 0.5;
    }
    50% {
        stroke-dashoffset: 60;
        opacity: 0.7;
    }
    80% {
        stroke-dashoffset: 0;
        opacity: 0.6;
    }
    100% {
        stroke-dashoffset: 0;
        opacity: 0.4;
    }
}

@keyframes smallNodeActivate {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    30% {
        opacity: 0.8;
        transform: scale(1.4);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.2);
    }
    70% {
        opacity: 0.9;
        transform: scale(1.3);
    }
    100% {
        opacity: 0.6;
        transform: scale(1);
    }
}

/* AI & Innovation animations - Neural network activation sequence */
.story-visual-ai .neuron {
    opacity: 0;
    transform: scale(0);
    animation: neuronFire 3s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}

/* First layer neurons (input layer) */
.story-visual-ai .neural-layer:first-of-type .neuron:nth-of-type(1) {
    animation-delay: 0s;
}

.story-visual-ai .neural-layer:first-of-type .neuron:nth-of-type(2) {
    animation-delay: 0.2s;
}

.story-visual-ai .neural-layer:first-of-type .neuron:nth-of-type(3) {
    animation-delay: 0.4s;
}

/* Middle layer neurons (hidden layer) */
.story-visual-ai .neural-layer:nth-of-type(2) .neuron:nth-of-type(1) {
    animation-delay: 0.6s;
}

.story-visual-ai .neural-layer:nth-of-type(2) .neuron:nth-of-type(2) {
    animation-delay: 0.8s;
}

.story-visual-ai .neural-layer:nth-of-type(2) .neuron:nth-of-type(3) {
    animation-delay: 1s;
}

.story-visual-ai .neural-layer:nth-of-type(2) .neuron:nth-of-type(4) {
    animation-delay: 1.2s;
}

/* Output layer neurons */
.story-visual-ai .neural-layer:last-of-type .neuron:nth-of-type(1) {
    animation-delay: 1.4s;
}

.story-visual-ai .neural-layer:last-of-type .neuron:nth-of-type(2) {
    animation-delay: 1.6s;
}

.story-visual-ai .neural-layer:last-of-type .neuron:nth-of-type(3) {
    animation-delay: 1.8s;
}

.story-visual-ai .neural-connections line {
    stroke-dasharray: 60;
    stroke-dashoffset: 60;
    opacity: 0;
    animation: neuralFlow 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-ai .neural-connections line:nth-child(1) {
    animation-delay: 0.5s;
}

.story-visual-ai .neural-connections line:nth-child(2) {
    animation-delay: 0.7s;
}

.story-visual-ai .neural-connections line:nth-child(3) {
    animation-delay: 0.9s;
}

.story-visual-ai .neural-connections line:nth-child(4) {
    animation-delay: 1.1s;
}

.story-visual-ai .neural-connections line:nth-child(5) {
    animation-delay: 1.3s;
}

.story-visual-ai .neural-connections line:nth-child(6) {
    animation-delay: 1.5s;
}

.story-visual-ai .data-box {
    opacity: 0;
    transform: scale(0.8);
    animation: dataProcess 3.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.story-visual-ai .data-box:nth-child(1) {
    animation-delay: 2s;
}

.story-visual-ai .data-box:nth-child(2) {
    animation-delay: 2.3s;
}

@keyframes neuronFire {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    25% {
        opacity: 1;
        transform: scale(1.2);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.1);
    }
    75% {
        opacity: 1;
        transform: scale(1.15);
    }
    100% {
        opacity: 0.7;
        transform: scale(1);
    }
}

@keyframes neuralFlow {
    0% {
        stroke-dashoffset: 60;
        opacity: 0;
    }
    20% {
        opacity: 0.4;
    }
    50% {
        stroke-dashoffset: 30;
        opacity: 0.6;
    }
    80% {
        stroke-dashoffset: 0;
        opacity: 0.7;
    }
    100% {
        stroke-dashoffset: 0;
        opacity: 0.3;
    }
}

@keyframes dataProcess {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    30% {
        opacity: 0.8;
        transform: scale(1.1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
    70% {
        opacity: 0.9;
        transform: scale(1.08);
    }
    100% {
        opacity: 0.6;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-bar {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .nav-link {
        font-size: 0.75rem;
    }
    
    .main-container {
        padding: var(--spacing-md) var(--spacing-md);
        margin-top: 60px;
    }
    
    .title-section {
        flex-direction: column;
        margin-bottom: var(--spacing-md);
    }
    
    .archive-title {
        margin-top: var(--spacing-sm);
    }
    
    .category-container {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
    }
    
    .category-tabs {
        flex-direction: column;
        width: 100%;
    }
    
    .category-tab {
        min-height: 100px;
        padding: var(--spacing-md) var(--spacing-lg);
        margin-right: 0;
        margin-bottom: -12px;
        clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 100%, 0 100%);
        flex: none;
    }
    
    .category-tab.active {
        transform: translateX(8px);
        margin-right: 0;
    }
    
    .category-tab-number {
        font-size: 0.875rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .category-tab-name {
        font-size: 1.5rem;
        line-height: 1.2;
    }
    
    .category-preview {
        bottom: calc(100% + 3px);
        padding-bottom: 0;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 100vw;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
    
    .preview-card {
        width: 85vw;
        max-width: 280px;
        height: auto;
        aspect-ratio: 4 / 3;
        margin-left: 0 !important;
        transform: rotate(0deg) translateY(100px) scale(0.5) !important;
    }
    
    .preview-card.visible {
        transform: rotate(0deg) translateY(-40px) scale(1) !important;
    }
    
    .preview-card:hover {
        transform: rotate(0deg) translateY(-50px) scale(1.05) !important;
    }
    
    .preview-card:nth-child(2),
    .preview-card:nth-child(3) {
        margin-left: 0 !important;
    }
    
    .projects-container {
        margin-bottom: 180px;
    }
    
    .main-container {
        padding-bottom: 200px;
    }
    
    .home-intro-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .intro-graphic {
        width: 200px;
        height: 200px;
        margin: 0 auto;
    }
    
    .graphic-placeholder {
        font-size: 3rem;
    }
    
    .home-cta-section {
        flex-direction: column;
        align-items: center;
    }
    
    .home-cta {
        width: auto;
        max-width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.875rem;
        white-space: nowrap;
    }
    
    .home-cta-prominent {
        max-width: 100%;
    }
    
    .scroll-indicator {
        margin: var(--spacing-lg) 0;
    }
    
    .scroll-indicator-line {
        height: 30px;
    }
    
    .scroll-reveal {
        transform: translateY(30px);
    }
    
    .experience-header {
        gap: var(--spacing-xs);
    }
    
    .experience-company {
        font-size: 1.25rem;
    }
    
    .experience-role {
        font-size: 1rem;
    }
    
    .contact-info {
        gap: var(--spacing-md);
    }
    
    .contact-form-container {
        padding: var(--spacing-md);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .story-with-image {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .story-reverse {
        direction: ltr;
    }
    
    .story-image-placeholder {
        order: -1;
    }
    
    .story-reverse .story-image-placeholder {
        order: 1;
    }
    
    .category-tabs {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .category-tab {
        clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 100%, 0 100%);
        margin-right: -10px;
    }
    
    .category-tab.active {
        transform: translateX(8px);
        margin-right: -5px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 3rem;
    }
    
    .archive-title {
        font-size: 2rem;
    }
    
    .category-tab {
        min-height: 90px;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .category-tab-number {
        font-size: 0.75rem;
    }
    
    .category-tab-name {
        font-size: 1.25rem;
    }
    
    .preview-card {
        width: 90vw;
        max-width: 250px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .projects-container {
        margin-bottom: 160px;
    }
    
    .main-container {
        padding-bottom: 180px;
    }
    
    .case-study-meta {
        grid-template-columns: 1fr;
    }
    
    .case-study-images-grid {
        grid-template-columns: 1fr;
    }
    
    .case-study-title {
        font-size: 2rem;
    }
    
    .case-study-subtitle {
        font-size: 1.25rem;
    }
}