header {
    background-color: #ffffff;
    color: black;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border-radius: 15px;
    margin: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.header-content h1 {
    margin: 0;
    font-size: 1.8rem;
    text-align: center;
}

header h2 {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    text-align: center !important;
    color: #4b54a3 !important;
    font-size: 1rem !important;
    font-weight: 400 !important;
    line-height: 1.2 !important;
    white-space: nowrap !important;
    margin: 0 !important;
}

.large-left-btn {
    width: 70px;
    height: 70px;
    background-color: white;
    border: 3px solid black;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background-color 0.2s;
}

.large-left-btn img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

.large-left-btn:hover {
    transform: scale(1.05);
    background-color: #eee;
}

.button-container {
    display: flex;
    gap: 10px;
}

.round-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid black;
    overflow: hidden;
    background-color: #ffffff;
    transition: transform 0.2s;
}

.round-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.round-btn:hover {
    transform: scale(1.1);
}

.page-menu {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 10px 10px;
}

.page-menu a {
    padding: 8px 14px;
    border: 2px solid transparent;
    color: white;
    text-decoration: none;
    font-family: inherit;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: 0.15s;
}

.page-menu a:hover {
    transform: scale(1.05);
}

.page-menu a.active {
    border-color: white;
}

@media(min-width: 768px) {
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .header-content h1 {
        font-size: 2rem;
    }
}

#main-content {
    display: flex;
    flex-direction: column;
    margin: 0 20px 30px 20px;
    gap: 15px;
    min-height: calc(100vh - 200px);
    align-items: stretch;
}

#filter-menu {
    background-color: rgba(0, 0, 0, 0.4);
    color: white;
    padding: 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    width: 100%;
    box-sizing: border-box;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

#filter-menu h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: white;
    font-family: 'Courier New', 'Lucida Console', Monaco, Monospace;
    font-size: 1rem;
}

#filter-menu label {
    display: block;
    margin-bottom: 5px;
    margin-top: 10px;
    color: white;
    font-size: 0.85rem;
    font-weight: bold;
}

#filter-menu select,
#filter-menu input[type="text"],
#filter-menu input[type="search"] {
    width: 100%;
    margin-bottom: 10px;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-family: 'Courier New', 'Lucida Console', Monaco, Monospace;
    font-size: 0.85rem;
    box-sizing: border-box;
}

#filter-menu select:focus,
#filter-menu input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background-color: rgba(255, 255, 255, 0.15);
}

#filter-menu select option {
    background-color: #373b57;
    color: white;
}

#filter-menu button {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 12px;
    margin-bottom: 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background-color 0.2s, transform 0.1s;
}

#filter-menu button:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.02);
}

#filter-menu button:active {
    transform: scale(0.98);
}

#filter-menu #lab-count,
#filter-menu #item-count,
#filter-menu .count-display {
    margin-bottom: 10px;
    margin-top: 5px;
    font-weight: bold;
    color: white;
    font-size: 0.9rem;
}

#filter-menu ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
    max-height: 400px;
    overflow-y: auto;
    color: white;
    flex: 1;
}

#filter-menu ul li {
    padding: 8px 5px;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background-color 0.2s;
}

#filter-menu ul li:last-child {
    border-bottom: none;
}

#filter-menu ul li:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

#filter-menu ul::-webkit-scrollbar {
    width: 8px;
}

#filter-menu ul::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

#filter-menu ul::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

#filter-menu ul::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

#visual-container {
    height: 400px;
    width: 100%;
    border-radius: 15px;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.2);
    flex: 1;
}

body[data-page="ecosystem"] #visual-container,
body[data-page="networks"] #visual-container {
    height: auto;
    min-height: 400px;
    overflow: visible;
}

@media (min-width: 768px) {
    #main-content {
        flex-direction: row;
        gap: 15px;
        align-items: stretch;
    }

    #filter-menu {
        width: 200px;
        flex: 0 0 200px;
    }

    #visual-container {
        height: 600px;
        flex: 1;
    }
 
    body[data-page="ecosystem"] #visual-container {
        height: auto;
        min-height: 600px;
        overflow: visible;
    }
  
    body[data-page="networks"] #visual-container {
        height: auto;
        min-height: 600px;
        overflow: visible;
    }

    body[data-page="geolocation"] #filter-menu,
    body[data-page="ecosystem"] #filter-menu {
        width: 280px;
        flex: 0 0 280px;
    }
    
    body[data-page="networks"] #filter-menu {
        width: 300px;
        flex: 0 0 300px;
    }
}

@media (max-width: 767px) {
    #main-content {
        flex-direction: column;
        gap: 15px;
        margin: 0 15px 20px 15px;
        align-items: center;
    }
    
    #filter-menu, #visual-container {
        width: 100%;
        max-width: 100%;
    }
}