/* ==========================================================================
   BioCore Platform - Mobile First & Responsive Enhancements
   ========================================================================== */

/* Mobile Bottom Navigation (Visible for Mobile-first roles like Phlebotomist & Customer) */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    border-top: 1px solid var(--slate-200);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0.5rem 0.25rem;
    z-index: 90;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.05);
}

.nav-item-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    color: var(--slate-500);
    font-size: 0.725rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-item-btn i {
    font-size: 1.15rem;
}

.nav-item-btn.active {
    color: var(--primary);
    font-weight: 600;
}

/* Responsive Breakpoints */

@media (max-width: 1024px) {
    .dashboard-columns {
        grid-template-columns: 1fr;
    }

    .role-switcher-bar {
        padding: 0.75rem 1rem;
    }

    .brand-sub {
        display: none;
    }
}

@media (max-width: 768px) {
    .role-panel {
        padding: 1rem;
        padding-bottom: 5rem; /* space for mobile bottom nav */
    }

    .panel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .header-actions {
        width: 100%;
        overflow-x: auto;
    }

    .role-selector-nav {
        max-width: calc(100vw - 120px);
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .metric-card {
        padding: 1rem;
    }

    .metric-val {
        font-size: 1.15rem;
    }

    .user-meta {
        display: none;
    }

    .modal-card {
        padding: 1.25rem;
        border-radius: var(--radius-lg);
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .role-pill .role-label {
        display: none;
    }

    .role-pill {
        padding: 0.5rem 0.75rem;
    }

    .stepper-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .stepper-progress-bar {
        display: none;
    }
}