.site-footer {
    width: 100%;
    text-align: center;
    padding: 24px 16px 12px;
    font-family: 'DM Sans', 'Segoe UI', sans-serif;
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    transition: color 0.3s ease;
}

.site-footer strong {
    font-weight: 600;
    color: var(--teal);
    transition: color 0.3s ease;
}

/* Toggle de tema */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.theme-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    font-family: 'DM Sans', sans-serif;
}

.theme-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.theme-icon {
    font-size: 1rem;
    transition: opacity 0.3s ease;
}

.theme-text {
    font-weight: 500;
    transition: opacity 0.3s ease;
}