/* EcoCatch Project Page Styles */
:root {
    /* Color System */
    --primary-blue: #000033;
    --primary-blue-light: #1a1a4a;
    --accent-blue: #003366;
    --accent-blue-light: #004080;
    --eco-green: #006644;
    --eco-green-light: #00875a;
    --white: #ffffff;
    --black: #000000;
    --gray-50: #fafafa;
    --gray-100: #f4f4f5;
    --gray-200: #e4e4e7;
    --gray-300: #d4d4d8;
    --gray-400: #a1a1aa;
    --gray-500: #71717a;
    --gray-600: #52525b;
    --gray-700: #3f3f46;
    --gray-800: #27272a;
    --gray-900: #18181b;

    /* Semantic Colors - Light Mode */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --bg-card: var(--white);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-500);
    --border-light: var(--gray-200);
    --border-medium: var(--gray-300);
    --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);
    
    /* Typography */
    --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --header-height: 80px;
    --header-shrink-height: 60px;
    --container-max-width: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
}

/* Dark Mode Variables */
.dark-mode {
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --bg-card: var(--gray-800);
    --text-primary: var(--gray-50);
    --text-secondary: var(--gray-200);
    --text-muted: var(--gray-400);
    --border-light: var(--gray-700);
    --border-medium: var(--gray-600);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-primary);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
    z-index: 1000;
    transition: all var(--transition-normal);
}

header.shrink {
    height: var(--header-shrink-height);
    box-shadow: var(--shadow-lg);
}

.logo {
    width: 140px;
    height: 40px;
    display: flex;
    align-items: center;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

header.shrink .logo {
    width: 120px;
    height: 35px;
}

/* Navigation */
nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    position: relative;
}

nav a:hover {
    color: var(--accent-blue);
    background: var(--bg-secondary);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

nav a:hover::after {
    width: 80%;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Theme Toggle */
.theme-switch {
    position: relative;
    width: 48px;
    height: 48px;
}

.theme-toggle {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.theme-icon {
    position: absolute;
    width: 24px;
    height: 24px;
    top: 12px;
    left: 12px;
    transition: all var(--transition-normal);
}

.sun {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.dark-mode .sun {
    opacity: 0;
    transform: scale(0) rotate(90deg);
}

.moon {
    opacity: 0;
    transform: scale(0) rotate(-90deg);
}

.dark-mode .moon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.sun-icon, .moon-icon {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.sun-icon {
    background: #f59e0b;
    box-shadow: 0 0 20px #f59e0b40;
}

.moon-icon {
    background: var(--gray-300);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

/* Main Content */
main {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--space-2xl);
}

/* Project Hero Section */
.project-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    margin-bottom: var(--space-3xl);
    padding: var(--space-3xl) 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.project-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    color: var(--white);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    align-self: flex-start;
}

.project-hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
    margin: 0;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-blue);
    margin: 0;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--accent-blue-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-secondary:hover {
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

.placeholder-text {
    text-align: center;
    padding: var(--space-lg);
}

/* Project Sections */
.project-section {
    margin-bottom: var(--space-3xl);
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Overview Section */
.overview-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.overview-text p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.key-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.feature-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

.overview-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Technology Section */
.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

.tech-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--accent-blue);
}

.tech-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.tech-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.tech-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.tech-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.tech-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Methodology Section */
.methodology-content {
    max-width: 800px;
    margin: 0 auto;
}

.methodology-intro p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.methodology-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.method-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
}

.method-step:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--accent-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

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

.validation-section {
    background: var(--bg-secondary);
    padding: var(--space-2xl);
    border-radius: var(--border-radius);
    text-align: center;
}

.validation-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
}

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

.validation-item {
    padding: var(--space-lg);
}

.validation-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: var(--space-sm);
}

.validation-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-blue);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    flex-grow: 1;
}

/* Implementation Section */
.implementation-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.results-overview h3,
.case-studies h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.results-overview p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.impact-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.impact-stat {
    text-align: center;
    padding: var(--space-lg);
}

.impact-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: var(--space-sm);
}

.impact-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.case-studies {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.case-study {
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
}

.case-study h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

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

.implementation-visual .placeholder-image {
    height: 400px;
}

/* Roadmap Section */
.roadmap-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-blue);
}

.timeline-item {
    display: flex;
    margin-bottom: var(--space-2xl);
    position: relative;
}

.timeline-year {
    width: 60px;
    height: 60px;
    background: var(--accent-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    margin-right: var(--space-xl);
    z-index: 1;
}

.timeline-content {
    flex-grow: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.timeline-content:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.timeline-content ul {
    list-style-type: none;
    padding: 0;
}

.timeline-content li {
    padding: var(--space-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--space-md);
}

.timeline-content li::before {
    content: '•';
    color: var(--accent-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Team Section */
.team-content {
    max-width: 1000px;
    margin: 0 auto;
}

.team-intro p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.team-member {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.member-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.member-info {
    padding: var(--space-xl);
}

.member-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.member-role {
    color: var(--accent-blue);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

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

.collaboration-section {
    text-align: center;
}

.collaboration-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-xl);
}

.partner-logo {
    height: 100px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-weight: 600;
}

/* Publications Section */
.publications-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-2xl);
}

.publications-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.publication-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
}

.publication-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.publication-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.publication-authors {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    font-style: italic;
}

.publication-journal {
    font-size: 0.9rem;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.publication-link {
    color: var(--accent-blue);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.publication-link:hover {
    color: var(--accent-blue-light);
    text-decoration: underline;
}

.resources-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
}

.resources-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.resource-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

.resource-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.resource-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.resource-link {
    color: var(--accent-blue);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.resource-link:hover {
    color: var(--accent-blue-light);
    text-decoration: underline;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    color: var(--white);
    padding: var(--space-3xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin: var(--space-3xl) 0;
}

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

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

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

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

.cta-section .btn-primary:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

.cta-section .btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.cta-section .btn-secondary:hover {
    background: var(--white);
    color: var(--accent-blue);
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0 var(--space-xl);
    margin-top: var(--space-3xl);
    border-top: 1px solid var(--border-light);
}

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-2xl);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-logo img {
    width: 120px;
    height: auto;
}

.footer-logo p {
    color: var(--text-secondary);
    font-weight: 500;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer-column h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column li {
    margin-bottom: var(--space-sm);
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent-blue);
}

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

.footer-bottom p {
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .project-hero {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .overview-content {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .implementation-content {
        grid-template-columns: 1fr;
    }
    
    .publications-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    main {
        padding: var(--space-xl);
    }
    
    .project-hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .tech-items {
        grid-template-columns: 1fr;
    }
    
    .impact-stats {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .roadmap-timeline::before {
        left: 20px;
    }
    
    .timeline-year {
        width: 40px;
        height: 40px;
        font-size: 0.875rem;
        margin-right: var(--space-lg);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-section {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus States */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
/* Image sizing for placeholders */
.placeholder-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
}

/* Specific sizing for different placeholder types */
.hero-visual .placeholder-image {
    height: 300px;
}

.implementation-visual .placeholder-image {
    height: 400px;
}

.member-image {
    height: 200px;
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Partner logos */
.partner-logo img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

/* Ensure images don't overflow their containers */
img {
    max-width: 100%;
    height: auto;
}

/* Logo images */
.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}