body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #f0f0f0;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

h1 {
    color: #4fc3f7;
    margin-bottom: 20px;
    font-weight: 300;
    font-size: 2.5rem;
}

#globe-container {
    width: 100%;
    height: 600px;
    margin: 20px auto;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 15px auto;
    flex-wrap: wrap;
    gap: 20px;
}

.controls div {
    margin: 0 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

button {
    background-color: #2196f3;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0d8bf2;
}

button#focus-antarctica {
    background-color: #00bcd4;
}

button#focus-antarctica:hover {
    background-color: #00a5bb;
}

input[type="range"] {
    width: 150px;
    background: #555;
    height: 6px;
    border-radius: 5px;
    -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: #4fc3f7;
    border-radius: 50%;
    cursor: pointer;
}

label {
    font-weight: bold;
    color: #4fc3f7;
}

.instructions {
    background-color: rgba(33, 33, 33, 0.7);
    padding: 15px 25px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: left;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.instructions h3 {
    color: #4fc3f7;
    margin-bottom: 10px;
}

.instructions p {
    margin: 5px 0;
    line-height: 1.5;
}

/* Loading screen styles */
#loading-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 18, 18, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    color: #4fc3f7;
    transition: opacity 0.5s ease-in-out;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(79, 195, 247, 0.3);
    border-top: 5px solid #4fc3f7;
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}