/* Modern rounded header with subtle depth - responsive flexbox */

header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1rem 0;
    gap: 1rem;
}

.logo-container {
    display: flex;
    align-items: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    border-radius: 16px;
    background: rgba(0, 0, 0, 0.03);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: inline-block;
}

body.dark-mode .logo {
    background: rgba(255, 255, 255, 0.05);
}

.logo:hover {
    background: rgba(0, 0, 0, 0.06);
    transform: scale(1.02);
}

body.dark-mode .logo:hover {
    background: rgba(255, 255, 255, 0.08);
}

.logo-placeholder {
    visibility: hidden;
    height: 100%;
}

/* Responsive header adjustments */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.75rem 0;
    }
    
    .logo-container {
        margin-right: 0;
        width: 100%;
    }
    
    .logo {
        font-size: 1.25rem;
        padding: 0.625rem 1rem;
    }
}