/* ==========================================================================
   Medical Provider Shift Scheduling Platform (MPSS) - Design System
   ========================================================================== */

:root {
  /* Color Palette - Clinical High-Legibility & Functional Hierarchy */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-muted: #e2e8f0;

  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Brand / Clinical Blue */
  --brand-50: #eff6ff;
  --brand-100: #dbeafe;
  --brand-500: #3b82f6;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  --brand-800: #1e40af;
  --brand-900: #1e3a8a;

  /* Semantic Feedback Tokens */
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;
  --success-text: #065f46;
  --success-solid: #059669;

  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #92400e;
  --warning-solid: #d97706;

  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #991b1b;
  --danger-solid: #dc2626;

  --info-bg: #f0f9ff;
  --info-border: #bae6fd;
  --info-text: #0369a1;
  --info-solid: #0284c7;

  --purple-bg: #f5f3ff;
  --purple-border: #ddd6fe;
  --purple-text: #5b21b6;

  /* Elevation & Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.06);

  /* Layout & Sizing */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --header-height: 64px;
  --sidebar-width: 250px;
  --max-content-width: 1400px;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Resets & Viewport Overflow Containment */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* App Header & Role Switcher Bar */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
}

.top-nav-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--brand-700);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.5px;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  background-color: var(--brand-50);
  color: var(--brand-700);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--brand-100);
}

/* User Role & Persona Switcher */
.user-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.role-selector-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-subtle);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.role-selector-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.role-select {
  background: transparent;
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

/* Impersonation Banner (Section 11) */
.impersonation-banner {
  background-color: #fff7ed;
  border-bottom: 1px solid #fed7aa;
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
  color: #9a3412;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: var(--header-height);
  z-index: 35;
}

.impersonation-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.impersonation-tag {
  background-color: #ea580c;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.btn-exit-impersonate {
  background-color: #ffffff;
  color: #9a3412;
  border: 1px solid #fdba74;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-exit-impersonate:hover {
  background-color: #ffedd5;
}

/* Layout Main Container */
.app-container {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem 1.25rem;
  width: 100%;
  flex: 1;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: 0.65rem 1.1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab-btn:hover {
  color: var(--brand-700);
  border-bottom-color: var(--brand-100);
}

.tab-btn.active {
  color: var(--brand-700);
  border-bottom-color: var(--brand-700);
}

.tab-count {
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-full);
}

.tab-btn.active .tab-count {
  background-color: var(--brand-100);
  color: var(--brand-800);
}

/* Cards & Panels */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Metrics & Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 0.35rem;
}

.stat-value-wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-indicator {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
}

.stat-indicator.urgent {
  background-color: var(--danger-bg);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
}
.stat-indicator.warning {
  background-color: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}
.stat-indicator.success {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

/* Quick Action Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.select-control, .input-control {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.select-control:focus, .input-control:focus {
  border-color: var(--brand-600);
  box-shadow: 0 0 0 2px var(--brand-100);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--brand-700);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--brand-800);
}

.btn-secondary {
  background-color: var(--bg-surface);
  border-color: var(--border-strong);
  color: var(--text-secondary);
}
.btn-secondary:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

.btn-success {
  background-color: var(--success-solid);
  color: #ffffff;
}
.btn-success:hover {
  background-color: #047857;
}

.btn-danger {
  background-color: var(--danger-solid);
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #b91c1c;
}

.btn-warning {
  background-color: var(--warning-solid);
  color: #ffffff;
}
.btn-warning:hover {
  background-color: #b45309;
}

.btn-sm {
  padding: 0.3rem 0.65rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Badges for State Machines (Section 4) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-draft { background-color: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }
.badge-published { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge-approved { background-color: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.badge-confirmed { background-color: #f0fdf4; color: #15803d; border: 1px solid #86efac; }
.badge-completed { background-color: #f8fafc; color: #64748b; border: 1px solid #e2e8f0; }
.badge-canceled { background-color: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

.badge-pending { background-color: #fffbeb; color: #b45309; border: 1px solid #fde68a; }
.badge-rejected { background-color: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.badge-auto_canceled { background-color: #f3f4f6; color: #6b7280; border: 1px solid #e5e7eb; }

.badge-active { background-color: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.badge-expiring { background-color: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.badge-expired { background-color: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.badge-md { background-color: #e0e7ff; color: #3730a3; border: 1px solid #c7d2fe; }
.badge-crna { background-color: #f3e8ff; color: #6b21a8; border: 1px solid #e9d5ff; }

/* Table Component */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background-color: var(--bg-surface);
}

.data-table th {
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 700;
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background-color: var(--bg-primary);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Shift Card Component (Mobile & Grid) */
.shift-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.shift-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.shift-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--brand-500);
}

.shift-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.shift-location {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.shift-date-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-800);
  margin-bottom: 0.5rem;
}

.shift-details-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  background-color: var(--bg-subtle);
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
}

.shift-incentive {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #fef3c7;
  color: #92400e;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  border: 1px solid #fde68a;
}

.shift-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

/* Availability Calendar Grid */
.calendar-container {
.calendar-container {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
  width: 100%;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.calendar-day-header {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 0.35rem 0;
  min-width: 0;
  overflow: hidden;
}

.calendar-cell {
  min-width: 0;
  min-height: 52px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.3rem 0.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  box-sizing: border-box;
  overflow: hidden;
  text-align: center;
}

.calendar-cell:hover {
  border-color: var(--brand-500);
}

.calendar-cell.other-month {
  opacity: 0.3;
  cursor: default;
}

.calendar-cell.available {
  background-color: #ecfdf5;
  border-color: #a7f3d0;
}

.calendar-cell.unavailable {
  background-color: #fef2f2;
  border-color: #fecaca;
}

.calendar-cell.has-shift {
  background-color: #eff6ff;
  border-color: #93c5fd;
}

.cal-day-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.cal-day-status {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
}

.available .cal-day-status { color: #047857; }
.unavailable .cal-day-status { color: #b91c1c; }
.has-shift .cal-day-status { color: #1d4ed8; }

/* Modal & Dialogs */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(3px);
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background-color: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 580px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  transform: translateY(8px) scale(0.98);
  transition: all var(--transition-fast);
  z-index: 71;
  position: relative;
}

.modal-backdrop.open .modal-box {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: var(--bg-primary);
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

/* Slide-over Drawer (e.g. for Provider Profile) */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.5);
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.drawer-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 500px;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-xl);
  z-index: 51;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.drawer-backdrop.open .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background-color: var(--bg-surface);
  z-index: 2;
}

.drawer-body {
  padding: 1.5rem;
  flex: 1;
}

/* Floating SMS Simulator Widget (Interactive Spec Section 9.3) */
.sms-simulator-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 45;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.sms-trigger-btn {
  background-color: #0f172a;
  color: #ffffff;
  border: 1px solid #334155;
  border-radius: var(--radius-full);
  padding: 0.65rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.sms-trigger-btn:hover {
  transform: scale(1.03);
}

.sms-device-box {
  width: 320px;
  background-color: #ffffff;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  margin-bottom: 0.75rem;
  overflow: hidden;
  display: none;
  flex-direction: column;
}

.sms-device-box.open {
  display: flex;
}

.sms-phone-header {
  background-color: #1e293b;
  color: #ffffff;
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sms-chat-area {
  background-color: #f8fafc;
  padding: 0.85rem;
  height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sms-bubble {
  max-width: 85%;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  line-height: 1.35;
}

.sms-bubble.outbound {
  background-color: #e2e8f0;
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.sms-bubble.inbound {
  background-color: var(--brand-700);
  color: #ffffff;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.sms-input-row {
  padding: 0.65rem;
  background-color: #ffffff;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  gap: 0.4rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background-color: #1e293b;
  color: #ffffff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 280px;
  pointer-events: auto;
  animation: slideInRight 0.2s ease-out;
}

.toast.success { background-color: #065f46; border-left: 4px solid #34d399; }
.toast.error { background-color: #991b1b; border-left: 4px solid #f87171; }
.toast.warning { background-color: #92400e; border-left: 4px solid #fbbf24; }
.toast.info { background-color: #075985; border-left: 4px solid #38bdf8; }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Form Styles */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.form-control {
  width: 100%;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.75rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  outline: none;
}

.form-control:focus {
  border-color: var(--brand-600);
  box-shadow: 0 0 0 2px var(--brand-100);
}

textarea.form-control {
  resize: vertical;
  min-height: 75px;
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

body.mobile-mode .form-row-2col,
@media (max-width: 768px) {
  .form-row-2col {
    grid-template-columns: 1fr !important;
  }
}

/* Charts / Reporting Visual Elements */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.progress-bar-wrap {
  width: 100%;
  background-color: var(--bg-muted);
  height: 10px;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: 0.5rem 0;
}

.progress-bar-fill {
  height: 100%;
  background-color: var(--brand-600);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.progress-bar-fill.success { background-color: var(--success-solid); }
.progress-bar-fill.warning { background-color: var(--warning-solid); }
.progress-bar-fill.danger { background-color: var(--danger-solid); }

/* ==========================================================================
   Mobile-First Optimizations & Mobile-Mode Enhancements
   ========================================================================== */

/* Mobile Bottom Navigation Bar - Fixed and Locked to Viewport */
.mobile-bottom-nav {
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  max-width: 100vw !important;
  height: calc(62px + env(safe-area-inset-bottom, 0px)) !important;
  padding-bottom: env(safe-area-inset-bottom, 0px) !important;
  background-color: #ffffff !important;
  border-top: 1px solid var(--border-strong) !important;
  box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.12) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-around !important;
  z-index: 1000 !important;
  margin: 0 !important;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.25rem;
  border-radius: var(--radius-md);
  position: relative;
  transition: all var(--transition-fast);
  flex: 1;
  min-height: 48px;
  text-decoration: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-item.active {
  color: var(--brand-700);
}

.mobile-nav-icon {
  font-size: 1.2rem;
  line-height: 1;
}

.mobile-nav-badge {
  position: absolute;
  top: 3px;
  right: 15%;
  background-color: var(--danger-solid);
  color: #ffffff;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.05rem 0.35rem;
  border-radius: var(--radius-full);
  min-width: 16px;
  text-align: center;
}

/* Device Mode Indicator Badge in Header */
.device-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  background-color: var(--bg-subtle);
  color: var(--brand-800);
  border: 1px solid var(--border-strong);
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.device-toggle-btn:hover {
  background-color: var(--brand-50);
  border-color: var(--brand-500);
}

/* Mobile-Mode Specific Overrides */
body.mobile-mode .top-nav {
  position: sticky;
  top: 0;
  z-index: 900;
  width: 100% !important;
  max-width: 100vw !important;
  overflow-x: hidden !important;
}

body.mobile-mode .top-nav-inner {
  padding: 0 0.5rem !important;
  height: 52px !important;
  gap: 0.35rem !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  width: 100% !important;
  max-width: 100vw !important;
  box-sizing: border-box !important;
}

body.mobile-mode .brand-section {
  flex-shrink: 0 !important;
  gap: 0.35rem !important;
  align-items: center !important;
}

body.mobile-mode .brand-logo {
  width: 28px !important;
  height: 28px !important;
  font-size: 0.9rem !important;
}

body.mobile-mode .brand-title {
  display: none !important;
}

body.mobile-mode .brand-badge {
  display: none !important;
}

body.mobile-mode .user-controls {
  display: flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  flex: 1 !important;
  min-width: 0 !important;
  max-width: calc(100vw - 42px) !important;
  justify-content: flex-end !important;
}

body.mobile-mode .role-selector-wrap {
  flex: 1 !important;
  min-width: 0 !important;
  max-width: 100% !important;
  display: flex !important;
  align-items: center !important;
  padding: 0.2rem 0.4rem !important;
  background-color: var(--bg-subtle) !important;
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--border-subtle) !important;
  overflow: hidden !important;
}

body.mobile-mode .role-selector-label {
  display: none !important;
}

body.mobile-mode .role-select {
  width: 100% !important;
  min-width: 0 !important;
  max-width: 100% !important;
  font-size: 0.76rem !important;
  font-weight: 600 !important;
  text-overflow: ellipsis !important;
  overflow: hidden !important;
  white-space: nowrap !important;
  background: transparent !important;
  border: none !important;
  outline: none !important;
  padding: 0 !important;
  margin: 0 !important;
  cursor: pointer !important;
  color: var(--text-primary) !important;
}

body.mobile-mode .device-toggle-btn {
  flex-shrink: 0 !important;
  padding: 0.25rem 0.4rem !important;
  font-size: 0.7rem !important;
}

body.mobile-mode .btn-icon {
  flex-shrink: 0 !important;
  width: 28px !important;
  height: 28px !important;
  padding: 0 !important;
}

body.mobile-mode .app-container {
  padding: 0.75rem 0.6rem calc(84px + env(safe-area-inset-bottom, 0px)) 0.6rem !important;
  max-width: 100vw !important;
  width: 100% !important;
  overflow-x: hidden !important;
  box-sizing: border-box !important;
}

body.mobile-mode .nav-tabs {
  display: none !important; /* Fully replaced by bottom navigation bar */
}

body.mobile-mode .stats-grid {
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

body.mobile-mode .shift-grid {
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

body.mobile-mode .card {
  padding: 1rem;
  margin-bottom: 0.85rem;
  max-width: 100%;
  overflow-x: hidden;
  box-sizing: border-box;
}

body.mobile-mode .table-responsive {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  display: block;
}

body.mobile-mode .toolbar {
  flex-direction: column;
  align-items: stretch;
  gap: 0.6rem;
}

body.mobile-mode .filter-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

body.mobile-mode .select-control,
body.mobile-mode .input-control {
  width: 100%;
  min-height: 42px;
}

body.mobile-mode .sms-simulator-float {
  bottom: calc(72px + env(safe-area-inset-bottom, 0px)) !important;
  right: 0.75rem !important;
}

body.mobile-mode .sms-device-box {
  width: calc(100vw - 1.5rem);
  max-width: 340px;
}

body.mobile-mode .modal-backdrop {
  align-items: flex-end !important;
  padding: 0 !important;
  z-index: 1100 !important;
}

body.mobile-mode .modal-box {
  max-width: 100% !important;
  width: 100% !important;
  border-bottom-left-radius: 0 !important;
  border-bottom-right-radius: 0 !important;
  border-top-left-radius: var(--radius-xl) !important;
  border-top-right-radius: var(--radius-xl) !important;
  max-height: 86vh !important;
  margin: 0 !important;
  z-index: 1101 !important;
}

body.mobile-mode .drawer-backdrop {
  z-index: 1100 !important;
}

body.mobile-mode .drawer-panel {
  max-width: 100% !important;
  width: 100% !important;
  z-index: 1101 !important;
}

body.mobile-mode .btn {
  min-height: 42px;
}

/* Touch targets and calendar cell sizing for mobile */
body.mobile-mode .calendar-container {
  padding: 0.75rem 0.4rem !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  overflow-x: hidden !important;
}

body.mobile-mode .calendar-header {
  flex-direction: column !important;
  align-items: flex-start !important;
  gap: 0.5rem !important;
  width: 100% !important;
}

body.mobile-mode .calendar-grid {
  grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
  gap: 2px !important;
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
}

body.mobile-mode .calendar-day-header {
  font-size: 0.62rem !important;
  padding: 0.15rem 0 !important;
  min-width: 0 !important;
  overflow: hidden !important;
}

body.mobile-mode .calendar-cell {
  min-width: 0 !important;
  min-height: 44px !important;
  padding: 0.2rem 0.05rem !important;
  border-radius: 4px !important;
  overflow: hidden !important;
  box-sizing: border-box !important;
}

body.mobile-mode .cal-day-num {
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  line-height: 1 !important;
}

body.mobile-mode .cal-day-status {
  font-size: 0.52rem !important;
  font-weight: 700 !important;
  line-height: 1 !important;
  text-transform: uppercase !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: clip !important;
  max-width: 100% !important;
}

/* Media Query Overrides for actual mobile viewports */
@media (max-width: 768px) {
  .top-nav {
    position: sticky;
    top: 0;
    z-index: 900;
    width: 100% !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }
  .top-nav-inner {
    padding: 0 0.5rem !important;
    height: 52px !important;
    gap: 0.35rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }
  .brand-section {
    flex-shrink: 0 !important;
    gap: 0.35rem !important;
    align-items: center !important;
  }
  .brand-logo {
    width: 28px !important;
    height: 28px !important;
    font-size: 0.9rem !important;
  }
  .brand-title {
    display: none !important;
  }
  .brand-badge {
    display: none !important;
  }
  .user-controls {
    display: flex !important;
    align-items: center !important;
    gap: 0.35rem !important;
    flex: 1 !important;
    min-width: 0 !important;
    max-width: calc(100vw - 42px) !important;
    justify-content: flex-end !important;
  }
  .role-selector-wrap {
    flex: 1 !important;
    min-width: 0 !important;
    max-width: 100% !important;
    display: flex !important;
    align-items: center !important;
    padding: 0.2rem 0.4rem !important;
    background-color: var(--bg-subtle) !important;
    border-radius: var(--radius-md) !important;
    border: 1px solid var(--border-subtle) !important;
    overflow: hidden !important;
  }
  .role-selector-label {
    display: none !important;
  }
  .role-select {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
    font-size: 0.76rem !important;
    font-weight: 600 !important;
    text-overflow: ellipsis !important;
    overflow: hidden !important;
    white-space: nowrap !important;
    background: transparent !important;
    border: none !important;
    outline: none !important;
    padding: 0 !important;
    margin: 0 !important;
    cursor: pointer !important;
    color: var(--text-primary) !important;
  }
  .device-toggle-btn {
    flex-shrink: 0 !important;
    padding: 0.25rem 0.4rem !important;
    font-size: 0.7rem !important;
  }
  .btn-icon {
    flex-shrink: 0 !important;
    width: 28px !important;
    height: 28px !important;
    padding: 0 !important;
  }
  .app-container {
    padding: 0.75rem 0.6rem calc(84px + env(safe-area-inset-bottom, 0px)) 0.6rem !important;
    max-width: 100vw !important;
    width: 100% !important;
    overflow-x: hidden !important;
  }
  .nav-tabs {
    display: none !important;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
body.mobile-mode .table-responsive,
@media (max-width: 768px) {
  .table-responsive {
    border: none !important;
    background: transparent !important;
    overflow: visible !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  .data-table {
    display: block !important;
    width: 100% !important;
    background: transparent !important;
    border: none !important;
  }
  .data-table thead {
    display: none !important;
  }
  .data-table tbody {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.75rem !important;
    width: 100% !important;
  }
  .data-table tr {
    display: flex !important;
    flex-direction: column !important;
    background-color: var(--bg-surface) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-lg) !important;
    padding: 0.85rem !important;
    box-shadow: var(--shadow-sm) !important;
    width: 100% !important;
    box-sizing: border-box !important;
    gap: 0.35rem !important;
  }
  .data-table td {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 0.35rem !important;
    padding: 0.35rem 0 !important;
    border: none !important;
    border-bottom: 1px dashed var(--border-subtle) !important;
    font-size: 0.82rem !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .data-table td:last-child {
    border-bottom: none !important;
    padding-top: 0.5rem !important;
    justify-content: stretch !important;
  }
  .data-table td:last-child > div,
  .data-table td:last-child > button {
    width: 100% !important;
  }
}

body.mobile-mode .shift-card-actions,
@media (max-width: 768px) .shift-card-actions {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.5rem !important;
  width: 100% !important;
}

body.mobile-mode .shift-card-actions .btn,
@media (max-width: 768px) .shift-card-actions .btn {
  width: 100% !important;
}

body.mobile-mode .modal-box,
body.mobile-mode .drawer-panel,
@media (max-width: 768px) .modal-box,
@media (max-width: 768px) .drawer-panel {
  width: 100% !important;
  max-width: 100vw !important;
  box-sizing: border-box !important;
  overflow-x: hidden !important;
}

body.mobile-mode .modal-body,
body.mobile-mode .drawer-body,
@media (max-width: 768px) .modal-body,
@media (max-width: 768px) .drawer-body {
  padding: 1rem 0.85rem !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  overflow-x: hidden !important;
}

body.mobile-mode .sms-simulator-float,
@media (max-width: 768px) .sms-simulator-float {
  bottom: calc(72px + env(safe-area-inset-bottom, 0px)) !important;
  right: 0.75rem !important;
}

body.mobile-mode .sms-device-box,
@media (max-width: 768px) .sms-device-box {
  width: calc(100vw - 1.5rem) !important;
  max-width: 340px !important;
}

body.mobile-mode .modal-backdrop,
@media (max-width: 768px) .modal-backdrop {
  align-items: flex-end !important;
  padding: 0 !important;
  z-index: 1100 !important;
}

body.mobile-mode .modal-box,
@media (max-width: 768px) .modal-box {
  max-width: 100% !important;
  width: 100% !important;
  border-bottom-left-radius: 0 !important;
  border-bottom-right-radius: 0 !important;
  border-top-left-radius: var(--radius-xl) !important;
  border-top-right-radius: var(--radius-xl) !important;
  max-height: 86vh !important;
  margin: 0 !important;
  z-index: 1101 !important;
}