/* Modern Professional AI-Enhanced Portfolio Styles */

/* CSS Variables for Consistent Color Palette */
:root {
    /* Modern Professional Color Palette */
    --primary-blue: #2563eb;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1d4ed8;
    --accent-purple: #7c3aed;
    --accent-green: #059669;
    --neutral-white: #ffffff;
    --neutral-gray-50: #f9fafb;
    --neutral-gray-100: #f3f4f6;
    --neutral-gray-200: #e5e7eb;
    --neutral-gray-300: #d1d5db;
    --neutral-gray-600: #4b5563;
    --neutral-gray-700: #374151;
    --neutral-gray-800: #1f2937;
    --neutral-gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--neutral-gray-800);
    background-color: var(--neutral-gray-900); /* Dark background for the page */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Split Screen Layout */
.split-layout-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.left-panel {
    width: 45%;
    position: sticky;
    top: 156px;
    height: calc(100vh - 156px);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    color: var(--neutral-white);
    display: flex;
    flex-direction: column;
    /* justify-content: center; /* Removed to allow scrolling */
}

.left-panel-inner {
    height: 100%;
    overflow-y: auto; /* Make inner container scrollable */
    padding: var(--spacing-xs) var(--spacing-xl);
}

.left-panel-content {
    transform: scale(0.9); /* "Zoom out" effect */
    display: flex;
    flex-direction: column;
    height: 100%;
}

.info-bubble {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
}

.hero-content.info-bubble {
    margin-bottom: var(--spacing-sm); /* Reduce space below this specific bubble */
}

.cta-section.info-bubble {
    margin-top: 0;
}

.cta-headline {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-decoration: underline;
}

.btn-cta {
    margin-top: var(--spacing-lg); /* Add reasonable space above button */
    margin-bottom: var(--spacing-md); /* Add space below button */
    width: 100%; /* Make button full width of container */
}

.right-panel {
    width: 55%;
    overflow-y: auto;
    background: var(--neutral-gray-800);
}


.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xs) var(--spacing-md) 2rem;
}

/* AI Stats Hero Section */
.ai-stats-hero {
    background: none; /* Removed background, now on parent */
    color: var(--neutral-white);
    padding: 0; /* Removed padding, now on parent */
    text-align: center;
}

.hero-content {
    margin-bottom: var(--spacing-xl);
}

.main-headline {
    font-family: var(--font-display);
    font-size: 2.5rem; /* Further reduced font size */
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 1.1rem; /* Reduced font size */
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
}

/* Stats Showcase */
.stats-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm); /* Further reduced padding */
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-card.featured {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.stat-number {
    display: block;
    font-size: 2rem; /* Reduced font size */
    font-weight: 900;
    margin-bottom: var(--spacing-xs);
    color: var(--neutral-white);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Impact Statement */
.impact-statement {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.impact-text {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.highlight-text {
    font-size: 1rem;
    opacity: 0.95;
    font-style: italic;
}

/* Projects Showcase Section */
.projects-showcase {
    padding: var(--spacing-xs) var(--spacing-lg) var(--spacing-2xl);
    background: var(--neutral-gray-800);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-top: 0;
    margin-bottom: var(--spacing-xl);
    color: var(--neutral-white);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--neutral-gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Horizontal Scrollable Projects Container */
.projects-container {
    display: grid; /* Changed to grid for vertical layout */
    grid-template-columns: 1fr; /* Single column */
    gap: var(--spacing-lg);
}

.projects-container::-webkit-scrollbar {
    height: 8px;
}

.projects-container::-webkit-scrollbar-track {
    background: var(--neutral-gray-200);
    border-radius: var(--radius-sm);
}

.projects-container::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: var(--radius-sm);
}

.projects-container::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue-dark);
}

/* Project Bubble/Container */
.project-bubble {
    background: var(--neutral-gray-900);
    color: var(--neutral-gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--neutral-gray-700);
    transition: all 0.3s ease;
}

.project-bubble:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue-light);
}

/* Project Header */
.project-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--neutral-gray-100);
}

.project-icon {
    flex-shrink: 0;
}

.project-icon img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    border: 2px solid var(--primary-blue-light);
}

.project-title-area h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--neutral-white);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.project-tagline {
    font-size: 0.875rem;
    color: var(--neutral-gray-600);
    font-weight: 500;
}

/* Tech Stats */
.tech-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tech-stat {
    background: var(--primary-blue);
    color: var(--neutral-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Backend Complexity Section */
.backend-complexity {
    margin-bottom: var(--spacing-lg);
}

.backend-complexity h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--neutral-white);
    margin-bottom: var(--spacing-sm);
}

.backend-complexity ul {
    list-style: none;
    padding: 0;
}

.backend-complexity li {
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--neutral-gray-300);
    border-bottom: 1px solid var(--neutral-gray-700);
}

.backend-complexity li:last-child {
    border-bottom: none;
}

.backend-complexity strong {
    color: var(--accent-green);
    font-weight: 600;
}

/* Traditional Comparison */
.traditional-comparison {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-purple);
}

.traditional-comparison p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.traditional-comparison p:last-child {
    margin-bottom: 0;
    color: var(--accent-green);
    font-weight: 600;
}

/* Call to Action Section */
.cta-section {
    background: none; /* Removed background, now on parent */
    color: var(--neutral-white);
    padding: var(--spacing-xl) 0 0; /* Adjusted padding */
    text-align: center;
}

.cta-subtext {
    font-size: 1rem;
    opacity: 0.8;
    max-width: 450px;
    margin: var(--spacing-md) auto;
    font-weight: 400;
}

.btn-cta {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--neutral-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    border: none;
    transition: all 0.3s ease;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
    color: var(--neutral-white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.cta-button-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-blue-dark) 0%, var(--accent-purple) 100%);
}

/* Navigation Styles */
header {
    background: var(--neutral-gray-800);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xs) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive Media Queries */
@media (max-width: 1024px) { /* Adjusted breakpoint for better responsiveness */
    .split-layout-container {
        flex-direction: column;
    }

    .left-panel, .right-panel {
        width: 100%;
        position: static; /* Remove sticky position */
        height: auto;
    }

    .right-panel {
        overflow-y: visible;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    nav ul {
        width: 100%;
        display: flex;
        justify-content: space-around;
        padding-top: var(--spacing-sm);
        border-top: 1px solid var(--neutral-gray-700);
    }

    .main-headline {
        font-size: 2.5rem;
    }
}

.logo {
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.logo-img {
    height: 140px;
    width: auto;
    transition: all 0.3s ease;
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.3));
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    color: #00ff88;
    text-shadow: 0 0 10px #00ff88, 0 0 20px #00ff88, 0 0 30px #00ff88;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.logo:hover .logo-img {
    filter: drop-shadow(0 0 15px rgba(0, 255, 136, 0.5)) drop-shadow(0 0 25px rgba(0, 255, 136, 0.3));
    transform: scale(1.05);
}

.logo:hover .logo-text {
    text-shadow: 0 0 15px #00ff88, 0 0 25px #00ff88, 0 0 35px #00ff88, 0 0 45px #00ff88;
}

nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

nav ul a {
    color: var(--neutral-gray-300);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav ul a:hover {
    color: var(--neutral-white);
}

/* About Page - Modern Professional Styling */
.section {
    padding: 0;
    background: linear-gradient(135deg, var(--neutral-gray-800), var(--neutral-gray-700));
    min-height: 100vh;
}

.section .container {
    max-width: 1200px;
    padding: 1rem var(--spacing-lg);
}

.section .section-title {
    color: var(--neutral-white);
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--neutral-white), var(--primary-blue-200));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Story Section */
.timeline-intro {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2xl);
    border-radius: 20px;
    margin-bottom: var(--spacing-2xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.timeline-intro h3 {
    color: var(--primary-purple);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
}

.timeline-intro h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    border-radius: 2px;
}

.timeline-intro p {
    color: var(--neutral-gray-700);
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    text-align: justify;
}

.timeline-intro .highlight-text {
    background: linear-gradient(135deg, var(--primary-blue-100), var(--primary-purple-100));
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    font-style: italic;
    color: var(--primary-purple-800);
    text-align: center;
    margin-top: var(--spacing-xl);
    border-left: 4px solid var(--primary-purple);
    font-weight: 600;
}

/* Timeline Grid */
.achievement-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.timeline-item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
}

.timeline-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.timeline-item h4 {
    color: var(--primary-purple);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.timeline-item h4::before {
    content: '⚡';
    font-size: 1.2rem;
}

.timeline-item p {
    color: var(--neutral-gray-700);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Methodology Section */
.methodology-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2xl);
    border-radius: 20px;
    margin-bottom: var(--spacing-2xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.methodology-section h3 {
    color: var(--primary-purple);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-align: center;
    position: relative;
}

.methodology-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    border-radius: 2px;
}

.methodology-section > p {
    color: var(--neutral-gray-600);
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.method-card {
    background: linear-gradient(135deg, var(--neutral-white), var(--neutral-gray-50));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.method-card:hover::before {
    transform: scaleX(1);
}

.method-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-purple-200);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.method-card h4 {
    color: var(--primary-purple);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.method-card p {
    color: var(--neutral-gray-600);
    line-height: 1.6;
    font-size: 1.05rem;
}

/* Comparison Section */
.comparison-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.comparison-section h3 {
    color: var(--primary-purple);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    text-align: center;
    position: relative;
}

.comparison-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    border-radius: 2px;
}

.stats-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.stat-group {
    background: linear-gradient(135deg, var(--neutral-gray-50), var(--neutral-white));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--neutral-gray-200);
    transition: all 0.3s ease;
}

.stat-group:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-purple-200);
}

.stat-group h4 {
    color: var(--primary-purple);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-purple-200);
}

.stat-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.stat-group li {
    color: var(--neutral-gray-700);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--neutral-gray-200);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stat-group li::before {
    content: '▸';
    color: var(--primary-purple);
    font-weight: bold;
}

.stat-group li:last-child {
    border-bottom: none;
}

/* Value Proposition */
.value-proposition {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.value-proposition h3 {
    color: var(--primary-purple);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
}

.value-proposition h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    border-radius: 2px;
}

.value-proposition p {
    color: var(--neutral-gray-700);
    line-height: 1.7;
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.value-proposition .cta-section {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-blue));
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin-top: var(--spacing-xl);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.value-proposition .cta-section p {
    color: var(--neutral-white);
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .section .section-title {
        font-size: 2.2rem;
    }
    
    .achievement-timeline {
        grid-template-columns: 1fr;
    }
    
    .stats-comparison {
        grid-template-columns: 1fr;
    }
    
    .methodology-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-intro,
    .timeline-item,
    .methodology-section,
    .comparison-section,
    .value-proposition {
        padding: var(--spacing-lg);
    }
    
    .timeline-intro h3,
    .methodology-section h3,
    .comparison-section h3,
    .value-proposition h3 {
        font-size: 1.6rem;
    }
}

.cta-button {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--neutral-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-headline {
        font-size: 2.5rem;
    }
    
    .stats-showcase {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-bubble {
        min-width: 320px;
        max-width: 350px;
    }
    
    .project-header {
        flex-direction: column;
        text-align: center;
    }
    
    .tech-stats {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-headline {
        font-size: 2rem;
    }
    
    .stats-showcase {
        grid-template-columns: 1fr;
    }
    
    .project-bubble {
        min-width: 280px;
        max-width: 300px;
    }
}