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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Header Styles */
header {
    text-align: center;
    padding: 60px 40px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.title {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.3em;
    font-weight: 400;
    margin-bottom: 30px;
    opacity: 0.95;
}

.authors {
    font-size: 1.1em;
    margin: 25px 0 15px;
    line-height: 1.8;
}

.authors span {
    display: inline-block;
    margin: 0 8px;
}

.affiliation {
    font-size: 1em;
    margin-bottom: 30px;
    opacity: 0.9;
}

.links {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Section Styles */
section {
    padding: 50px 60px;
    border-bottom: 1px solid #e0e0e0;
}

section:last-of-type {
    border-bottom: none;
}

section h2 {
    font-size: 2em;
    margin-bottom: 25px;
    color: #667eea;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
}

section h3 {
    font-size: 1.4em;
    margin: 30px 0 15px;
    color: #555;
}

section p {
    margin-bottom: 15px;
    font-size: 1.05em;
    text-align: justify;
}

/* Example Images */
.example-images {
    margin: 30px 0;
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
}

.example-images img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.caption {
    margin-top: 10px;
    font-size: 0.95em;
    color: #666;
    font-style: italic;
    text-align: center;
}

/* Pipeline Section */
.pipeline-image {
    margin: 30px 0;
    text-align: center;
}

.pipeline-image img {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.pipeline-steps {
    background-color: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
    margin-top: 30px;
}

.pipeline-steps ol {
    margin-left: 25px;
    margin-top: 15px;
}

.pipeline-steps li {
    margin-bottom: 15px;
    font-size: 1.05em;
    line-height: 1.7;
}

.pipeline-steps strong {
    color: #667eea;
}

/* Evaluation Framework */
.framework-image {
    margin: 30px 0;
    text-align: center;
}

.framework-image img {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.metrics {
    background-color: #f0f4ff;
    padding: 25px;
    border-radius: 8px;
    margin-top: 30px;
    border-left: 4px solid #667eea;
}

.metrics ul {
    margin-left: 25px;
    margin-top: 15px;
}

.metrics li {
    margin-bottom: 15px;
    font-size: 1.05em;
    line-height: 1.7;
}

.metrics strong {
    color: #667eea;
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    font-size: 0.95em;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

thead tr {
    background-color: #667eea;
    color: white;
    text-align: left;
}

th, td {
    padding: 14px 12px;
    text-align: left;
}

th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid #e0e0e0;
}

tbody tr:nth-child(even) {
    background-color: #f9f9f9;
}

tbody tr:hover {
    background-color: #f0f4ff;
    transition: background-color 0.2s ease;
}

tbody td:first-child {
    font-weight: 600;
    color: #555;
}

.highlight-row {
    background-color: #fff3cd !important;
}

.highlight-row:hover {
    background-color: #ffe69c !important;
}

.best-opensource {
    background-color: #d4edda !important;
}

.best-opensource:hover {
    background-color: #c3e6cb !important;
}

.total-row {
    background-color: #e7f3ff !important;
    font-weight: 600;
}

.results-table th {
    text-align: center;
}

.results-table td {
    text-align: center;
}

.results-table td:first-child {
    text-align: left;
}

/* Findings Grid */
.findings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.finding-card {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.finding-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.2);
}

.finding-card h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.finding-card p {
    font-size: 1em;
    color: #555;
    text-align: left;
}

/* Citation */
#citation pre {
    background-color: #f5f5f5;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #ddd;
    overflow-x: auto;
    margin-top: 20px;
}

#citation code {
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: #333;
    line-height: 1.6;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    background-color: #333;
    color: white;
    font-size: 0.95em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 1.8em;
    }

    .subtitle {
        font-size: 1.1em;
    }

    section {
        padding: 30px 25px;
    }

    section h2 {
        font-size: 1.6em;
    }

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

    table {
        font-size: 0.85em;
    }

    th, td {
        padding: 10px 8px;
    }
}

/* Utility Classes */
strong {
    font-weight: 700;
}

em {
    font-style: italic;
}