/* Global 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;
    padding: 40px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 40px;
}

.title {
    font-size: 2.5em;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    line-height: 1.3;
}

/* Authors Section */
.authors {
    margin: 20px 0;
}

.author-names {
    font-size: 1.2em;
    color: #34495e;
    margin-bottom: 10px;
}

.affiliations {
    font-size: 1em;
    color: #7f8c8d;
    font-style: italic;
}

sup {
    font-size: 0.8em;
}

/* Menu Styles */
.menu {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    padding: 20px 0;
    border-top: 2px solid #ecf0f1;
    border-bottom: 2px solid #ecf0f1;
}

.menu-link {
    font-size: 1.1em;
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.menu-link:hover {
    background-color: #3498db;
    color: white;
}

/* Main Content */
main {
    margin-top: 40px;
}

/* Media Section (Image + Video) */
.media-section {
    margin-bottom: 40px;
}

.media-container {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.media-item {
    flex: 1;
}

.teaser-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.teaser-video {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Abstract Section */
.abstract-section {
    margin-bottom: 40px;
    padding: 30px;
    background-color: #ecf0f1;
    border-radius: 8px;
}

.abstract-section h2 {
    font-size: 1.8em;
    color: #2c3e50;
    margin-bottom: 15px;
}

.abstract-text {
    font-size: 1.1em;
    line-height: 1.8;
    text-align: justify;
    color: #34495e;
}

/* Content Sections */
.content-section {
    margin-bottom: 50px;
}

.content-section h2 {
    font-size: 1.8em;
    color: #2c3e50;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3498db;
}

/* Video Row */
.video-row {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.video-container {
    flex: 1;
    text-align: center;
}

.video-container video {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.video-caption {
    margin-top: 10px;
    font-size: 1em;
    color: #7f8c8d;
    font-style: italic;
}

/* BibTeX Section */
.bibtex-section {
    margin-bottom: 40px;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.bibtex-section h2 {
    font-size: 1.8em;
    color: #2c3e50;
    margin-bottom: 15px;
}

.bibtex-code {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95em;
    line-height: 1.6;
}

.bibtex-code code {
    display: block;
}

/* Video Speed Control */
.video-speed-control {
    margin: 10px 0 15px 0;
    text-align: center;
}

.speed-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95em;
    color: #34495e;
    font-weight: 500;
}

.speed-slider {
    width: 150px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #d3d3d3;
    outline: none;
    border-radius: 3px;
    cursor: pointer;
}

.speed-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: #3498db;
    cursor: pointer;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.speed-slider::-webkit-slider-thumb:hover {
    background: #2980b9;
}

.speed-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #3498db;
    cursor: pointer;
    border-radius: 50%;
    border: none;
    transition: background 0.3s ease;
}

.speed-slider::-moz-range-thumb:hover {
    background: #2980b9;
}

.speed-value {
    min-width: 35px;
    display: inline-block;
    font-weight: 600;
    color: #3498db;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 2px solid #ecf0f1;
    color: #7f8c8d;
    font-size: 0.9em;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .title {
        font-size: 1.8em;
    }

    .menu {
        flex-direction: column;
        gap: 10px;
    }

    .menu-link {
        display: block;
        text-align: center;
    }

    .media-container {
        flex-direction: column;
    }

    .video-row {
        flex-direction: column;
    }

    .abstract-section {
        font-size: 1.5em;
    }

    .content-section h2 {
        font-size: 1.5em;
    }

    .abstract-text {
        font-size: 1em;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 1.5em;
    }

    .author-names {
        font-size: 1em;
    }

    .affiliations {
        font-size: 0.9em;
    }
}