.theme-header {
    padding: 4rem 2rem;
    background-color: #1f1f1f;
    text-align: center;
    margin-bottom: 4rem;
    border-bottom: 1px solid #333;
}

.theme-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.theme-header p {
    font-size: 1.2rem;
    color: #a0a0a0;
}

.back-button {
    position: absolute;
    top: 2rem;
    left: 2rem;
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: background-color 0.3s ease;
}

.back-button:hover {
    background-color: rgba(0, 0, 0, 0.6);
}

.location-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.placeholder-text {
    grid-column: 1 / -1; 
    text-align: center;
    font-size: 1.5rem;
    color: #a0a0a0;
    margin-top: 5rem;
    margin-bottom: 5rem;
}