@import url('https://fonts.googleapis.com/css?family=Source+Sans+Pro:300italic,600italic,300,600');
:root {
    --primary-color: #0066cc;
    --primary-light: #3385d6;
    --secondary-color: #2d3748;
    --background-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1a202c;
    --text-light: #718096;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.uncertainty-zones ul {
    list-style-type: none;
    padding-left: 0;
}

.uncertainty-zones ul ul {
    padding-left: 20px;
    margin: 5px 0;
}

.uncertainty-zones li {
    margin: 10px 0;
}

.uncertainty-zones strong {
    color: #2c3e50;
}

.component-details {
    margin-top: 20px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
}

.component-details ul {
    list-style-type: none;
    padding-left: 0;
}

.component-details li {
    margin: 5px 0;
    padding-left: 15px;
    border-left: 3px solid #3498db;
}

/* Header Styles */
.site-header {
    background-color: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

.site-header h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.main-nav a:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Main Content Styles */
.section {
    padding: 40px 0;
    max-width: 1400px;
    margin: 0 auto;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.lead {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 800px;
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
}

/* Footer Styles */
.site-footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 2rem 0;
    margin-top: 4rem;
}

.site-footer p {
    opacity: 0.9;
    text-align: center;
}

.site-footer a {
    color: white;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.site-footer a:hover {
    border-bottom-color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .site-header h1 {
        font-size: 1.5rem;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav a {
        display: block;
        padding: 0.75rem 1rem;
        background-color: var(--background-color);
    }

    h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.8s ease-out;
}

/* Code Blocks (if you need them) */
pre, code {
    background-color: #f1f5f9;
    border-radius: var(--border-radius);
    padding: 1rem;
    font-family: 'Consolas', 'Monaco', monospace;
    overflow-x: auto;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-light);
}

/* Buttons (if needed) */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.button:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

/* Add these new styles to your existing CSS file */

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

.text-content {
    font-size: 1.1rem;
}

.metrics-box {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.metrics-box h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.metrics-box ul {
    list-style: none;
    padding-left: 0;
}

.metrics-box li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.metrics-box li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.formula {
    background: var(--card-bg);
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: var(--border-radius);
    text-align: center;
    font-family: "Computer Modern", serif;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.8;
    color: var(--text-color);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.formula var {
    font-style: italic;
    font-weight: 500;
    color: var(--primary-color);
}

.formula .operator {
    margin: 0 0.3rem;
    color: var(--text-light);
}

.visualization {
    position: relative;
}

.analysis-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.image-caption {
    text-align: center;
    color: var(--text-light);
    margin-top: 1rem;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .visualization {
        margin-top: 2rem;
    }
}

/* GMM Component Analysis Styles */
.content-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    align-items: start;
    margin: 20px auto;
    max-width: 100%;
}

.visualization {
    position: relative;
    width: 100%;
    overflow: visible;
}

.visualization iframe {
    width: 200%;
    height: 700px;
    border: none;
    transform: translateX(10%);
    margin-bottom: 20px;
}

.text-content {
    padding-right: 20px;
    width: 100%;
}

.text-content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: #2c3e50;
}

.text-content p, 
.text-content li {
    line-height: 1.6;
    margin-bottom: 1rem;
    color: #34495e;
}

.image-caption {
    transform: translateX(10%);
    width: 200%;
    text-align: center;
}

.component-details {
    transform: translateX(10%);
    width: 200%;
    margin-top: 20px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
}

.component-details h4 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.component-details ul {
    list-style-type: none;
    padding: 0;
}

.component-details li {
    margin: 8px 0;
    padding-left: 15px;
    border-left: 3px solid #3498db;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .content-grid {
        grid-template-columns: 300px 1fr;
    }
}

@media (max-width: 992px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .visualization iframe,
    .image-caption,
    .component-details {
        width: 100%;
        transform: none;
    }
}

/* Animation classes */
.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

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

.visualization iframe {
    transition: transform 0.3s ease;
}

/* File Upload Styles */
.upload-container {
    max-width: 800px;
    margin: 4rem auto;
    padding: 20px;
}

.upload-box {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 3rem;
}

.file-drop-area {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    padding: 3rem;
    border: 2px dashed #e2e8f0;
    border-radius: var(--border-radius);
    background: #f8fafc;
    transition: all 0.3s ease;
    min-height: 250px;
    cursor: pointer;
}

.file-drop-area:hover,
.file-drop-area.is-active {
    background: #edf2ff;
    border-color: var(--primary-color);
}

.choose-files-btn {
    background: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.choose-files-btn:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}

.file-msg {
    color: #64748b;
    font-size: 1rem;
    margin: 1rem 0;
}

.requirements {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.requirements h4 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.requirements ul {
    list-style: none;
    padding-left: 0;
}

.requirements li {
    color: #64748b;
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.requirements li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.run-inference-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    margin-top: 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.run-inference-btn:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.run-inference-btn:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    transform: none;
}

/* Header alignment fix */
#inference.section {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 20px;
}

#inference h2 {
    text-align: left;
    padding-left: 3rem; /* Match the upload-box padding */
    margin-bottom: 2rem;
}

.example-analysis {
    margin-top: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.example-analysis .analysis-image {
    width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.example-analysis .image-caption {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
    margin: 0;
}

.elbo-section {
    padding: 4rem 0;
}

.elbo-section .formula {
    background: var(--card-bg);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: var(--border-radius);
    text-align: center;
    font-family: "Computer Modern", serif;
    font-size: 1.2rem;
}

.elbo-section ul {
    list-style-type: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.elbo-section li {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.elbo-section li:before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.elbo-section .analysis-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .elbo-section .formula {
        font-size: 1rem;
        padding: 1rem;
    }
}

.uncertainty-section {
    margin: 2rem 0;
}

.visualization-grid {
    width: 100%;
    margin-bottom: 1.5rem;
}

.analysis-image {
    width: 100%;
    height: auto;
    display: block;
}

.main-description {
    text-align: justify;
    line-height: 1.6;
    margin: 1rem 0;
    color: var(--text-color);
    font-size: 1rem;
}

/* Add these font imports at the top */


/* Enhanced Button Styles */
.button {
    -moz-appearance: none;
    -webkit-appearance: none;
    -ms-appearance: none;
    appearance: none;
    transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out;
    background-color: transparent;
    border-radius: var(--border-radius);
    border: 0;
    box-shadow: inset 0 0 0 1px var(--primary-color);
    color: var(--primary-color) !important;
    cursor: pointer;
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 300;
    height: 2.75rem;
    letter-spacing: 0.2rem;
    line-height: 2.75rem;
    outline: 0;
    padding: 0 1.25rem 0 1.35rem;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
}

.button:hover {
    background-color: rgba(0, 102, 204, 0.075);
    transform: translateY(-2px);
}

.button:active {
    background-color: rgba(0, 102, 204, 0.175);
}

/* Enhanced Form Styles */
input[type="text"],
input[type="password"],
input[type="email"],
input[type="tel"],
select,
textarea {
    appearance: none;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    background-color: transparent;
    border: solid 1px var(--text-light);
    border-radius: var(--border-radius);
    color: inherit;
    display: block;
    outline: 0;
    padding: 0 1rem;
    text-decoration: none;
    width: 100%;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}

/* Enhanced Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

table tbody tr {
    border: solid 1px var(--text-light);
    border-left: 0;
    border-right: 0;
}

table tbody tr:nth-child(2n + 1) {
    background-color: rgba(0, 0, 0, 0.075);
}

table td {
    padding: 0.75em;
}

table th {
    color: var(--text-color);
    font-size: 0.9em;
    font-weight: 600;
    padding: 0.75em;
    text-align: left;
}

/* Article transitions */
.is-preload * {
    animation: none !important;
    transition: none !important;
}

.is-article-visible {
    transform: scale(0.95);
    filter: blur(0.1rem);
    opacity: 0.8;
    transition: all 0.325s ease-in-out;
}

article {
    transform: translateY(0.25rem);
    transition: opacity 0.325s ease-in-out, transform 0.325s ease-in-out;
    opacity: 0;
}

article.active {
    transform: translateY(0);
    opacity: 1;
}

/* Close button styling */
.close {
    position: absolute;
    top: 0;
    right: 0;
    width: 4rem;
    height: 4rem;
    cursor: pointer;
    text-indent: 4rem;
    overflow: hidden;
    white-space: nowrap;
}

.close:before {
    content: '';
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 100%;
    background-position: center;
    background-repeat: no-repeat;
    transition: background-color 0.2s ease-in-out;
}

.close:hover:before {
    background-color: rgba(255, 255, 255, 0.075);
}