:root {
    --background-color: #ffffff;
    --text-color: #000000;
    --globe-bg-color: #ffffff;
    --globe-point-color: #000000;
    --toggle-bg: #e0e0e0;
    --toggle-color: #333333;
}

[data-theme="dark"] {
    --background-color: #121212;
    --text-color: #ffffff;
    --globe-bg-color: #121212;
    --globe-point-color: #ffffff;
    --toggle-bg: #333333;
    --toggle-color: #e0e0e0;
}

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

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

.container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    font-weight: 300;
    letter-spacing: -1px;
    z-index: 10;
    text-align: center;
    pointer-events: none;
    text-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, var(--text-color) 0%, rgba(128, 128, 128, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="dark"] .logo {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
    background: linear-gradient(135deg, var(--text-color) 0%, rgba(200, 200, 200, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.globe-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#globeViz {
    width: 100%;
    height: 100%;
}

.theme-toggle {
    position: absolute;
    bottom: 20px;
    right: 20px;
    z-index: 100;
}

#theme-switch {
    background-color: var(--toggle-bg);
    color: var(--toggle-color);
    border: none;
    border-radius: 20px;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#theme-switch:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

#theme-switch:active {
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.light-icon, .dark-icon {
    font-size: 1.2rem;
}

[data-theme="light"] .dark-icon {
    display: none;
}

[data-theme="dark"] .light-icon {
    display: none;
}

/* Media Queries for Responsive Design */
@media (max-width: 768px) {
    .logo {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 2rem;
    }
    
    .theme-toggle {
        bottom: 15px;
        right: 15px;
    }
    
    #theme-switch {
        padding: 6px 10px;
    }
}