:root {
  --flex-navy-900: #0b1b4d;
  --flex-navy-800: #132a67;
  --flex-navy-700: #1f3b8a;
  --flex-accent: #1f6fff;
  --flex-accent-hover: #0a5ae0;
  --flex-bg: #f3f6fb;
  --flex-surface: #ffffff;
  --flex-border: #d8e0ee;
  --flex-text: #0d1f44;
  --flex-muted: #61739b;
  --flex-success: #14b86f;
  --flex-danger: #db3a44;
  --flex-warning: #f59e0b;
  --flex-info: #0ea5e9;
  --flex-radius-sm: 8px;
  --flex-radius-md: 12px;
  --flex-radius-lg: 16px;
  --flex-shadow-sm: 0 1px 3px rgba(10, 37, 115, 0.08);
  --flex-shadow-md: 0 4px 12px rgba(10, 37, 115, 0.12);
  --flex-shadow-lg: 0 12px 28px -8px rgba(10, 37, 115, 0.18);
  --flex-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.twilio-flex {
  background: linear-gradient(180deg, #eef3fb 0%, #f8fbff 100%);
  color: var(--flex-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== BUTTONS ===== */
body.twilio-flex .btn {
  border-radius: var(--flex-radius-sm);
  font-weight: 600;
  transition: all var(--flex-transition);
  letter-spacing: 0.01em;
}

body.twilio-flex .btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--flex-shadow-md);
}

body.twilio-flex .btn:active {
  transform: translateY(0);
}

body.twilio-flex .btn-primary {
  background-color: var(--flex-accent);
  border-color: var(--flex-accent);
}

body.twilio-flex .btn-primary:hover {
  background-color: var(--flex-accent-hover);
  border-color: var(--flex-accent-hover);
}

body.twilio-flex .btn-outline-primary {
  color: var(--flex-accent);
  border-color: var(--flex-accent);
}

body.twilio-flex .btn-outline-primary:hover {
  background-color: var(--flex-accent);
  border-color: var(--flex-accent);
  color: #fff;
}

/* ===== CARDS & PANELS ===== */
body.twilio-flex .card,
body.twilio-flex .card-custom,
body.twilio-flex .card-standard,
body.twilio-flex .panel,
body.twilio-flex .modal-content {
  border-radius: var(--flex-radius-lg);
  border: 1px solid var(--flex-border);
  box-shadow: var(--flex-shadow-lg);
  transition: box-shadow var(--flex-transition), transform var(--flex-transition);
}

body.twilio-flex .card:hover {
  box-shadow: 0 16px 36px -10px rgba(10, 37, 115, 0.22);
}

body.twilio-flex .card-header {
  border-radius: var(--flex-radius-lg) var(--flex-radius-lg) 0 0;
  font-weight: 600;
}

/* ===== TABLES ===== */
body.twilio-flex .table {
  border-collapse: separate;
  border-spacing: 0;
}

body.twilio-flex .table th {
  background: #f3f7ff;
  color: var(--flex-muted);
  border-bottom: 2px solid var(--flex-border);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 0.75rem 1rem;
  white-space: nowrap;
}

body.twilio-flex .table td {
  border-bottom-color: #edf1f9;
  padding: 0.75rem 1rem;
  vertical-align: middle;
  transition: background var(--flex-transition);
}

body.twilio-flex .table tbody tr:hover td {
  background: rgba(31, 111, 255, 0.03);
}

body.twilio-flex .table-striped tbody tr:nth-of-type(odd) td {
  background: rgba(243, 247, 255, 0.5);
}

/* ===== FORMS ===== */
body.twilio-flex .form-control,
body.twilio-flex .form-select,
body.twilio-flex textarea {
  border-radius: var(--flex-radius-sm);
  border-color: #c9d4eb;
  transition: border-color var(--flex-transition), box-shadow var(--flex-transition);
}

body.twilio-flex .form-control:focus,
body.twilio-flex .form-select:focus,
body.twilio-flex textarea:focus {
  border-color: var(--flex-accent);
  box-shadow: 0 0 0 .22rem rgba(31, 111, 255, .16);
}

body.twilio-flex .form-label {
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--flex-muted);
}

body.twilio-flex .input-group-text {
  border-radius: var(--flex-radius-sm);
  border-color: #c9d4eb;
  transition: border-color var(--flex-transition);
}

/* ===== HEADERS & NAVIGATION ===== */
body.twilio-flex header#topbar,
body.twilio-flex .topbar,
body.twilio-flex .wb-header,
body.twilio-flex .login-header,
body.twilio-flex .page-header {
  background: linear-gradient(90deg, var(--flex-navy-900), var(--flex-navy-700));
  color: #fff;
  border-color: rgba(255,255,255,.16);
}

body.twilio-flex .nav-link {
  transition: color var(--flex-transition), background var(--flex-transition);
  border-radius: var(--flex-radius-sm);
}

body.twilio-flex .nav-item.active,
body.twilio-flex .nav-link.active,
body.twilio-flex .menu-item.active {
  background: #e8f0ff !important;
  color: #1848a6 !important;
}

/* ===== BADGES & INDICATORS ===== */
body.twilio-flex .badge {
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 6px;
  padding: 0.3em 0.6em;
}

body.twilio-flex .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

body.twilio-flex .status-dot-success { background: var(--flex-success); box-shadow: 0 0 0 3px rgba(20, 184, 111, 0.2); }
body.twilio-flex .status-dot-danger  { background: var(--flex-danger);  box-shadow: 0 0 0 3px rgba(219, 58, 68, 0.2); }
body.twilio-flex .status-dot-warning { background: var(--flex-warning); box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2); }
body.twilio-flex .status-dot-info    { background: var(--flex-info);    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2); }

body.twilio-flex .status-dot-pulse {
  animation: flex-pulse 2s ease-in-out infinite;
}

@keyframes flex-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* ===== ALERTS ===== */
body.twilio-flex .alert {
  border-radius: var(--flex-radius-md);
  border: none;
  font-size: 0.875rem;
  box-shadow: var(--flex-shadow-sm);
}

/* ===== MODALS ===== */
body.twilio-flex .modal-header {
  border-bottom-color: var(--flex-border);
  padding: 1.1rem 1.5rem;
}

body.twilio-flex .modal-title {
  font-weight: 700;
  font-size: 1.05rem;
}

body.twilio-flex .modal-footer {
  border-top-color: var(--flex-border);
  padding: 1rem 1.5rem;
}

/* ===== DROPDOWN MENUS ===== */
body.twilio-flex .dropdown-menu {
  border-radius: var(--flex-radius-md);
  border-color: var(--flex-border);
  box-shadow: var(--flex-shadow-lg);
  padding: 0.35rem;
  animation: flex-dropdown-in 0.15s ease-out;
}

@keyframes flex-dropdown-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

body.twilio-flex .dropdown-item {
  border-radius: var(--flex-radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: 0.875rem;
  transition: background var(--flex-transition);
}

body.twilio-flex .dropdown-item:hover,
body.twilio-flex .dropdown-item:focus {
  background: rgba(31, 111, 255, 0.06);
  color: var(--flex-accent);
}

/* ===== TOOLTIPS ===== */
body.twilio-flex .tooltip-inner {
  border-radius: var(--flex-radius-sm);
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
}

/* ===== SCROLLBAR ===== */
body.twilio-flex ::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

body.twilio-flex ::-webkit-scrollbar-track {
  background: transparent;
}

body.twilio-flex ::-webkit-scrollbar-thumb {
  background: rgba(97, 115, 155, 0.25);
  border-radius: 3px;
}

body.twilio-flex ::-webkit-scrollbar-thumb:hover {
  background: rgba(97, 115, 155, 0.4);
}

/* ===== SKELETON LOADING ===== */
@keyframes flex-skeleton {
  0%   { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

body.twilio-flex .skeleton {
  background: linear-gradient(90deg, #edf1f9 25%, #dfe6f2 37%, #edf1f9 63%);
  background-size: 400px 100%;
  animation: flex-skeleton 1.4s ease infinite;
  border-radius: var(--flex-radius-sm);
}

body.twilio-flex .skeleton-text {
  height: 0.85rem;
  margin-bottom: 0.5rem;
  width: 80%;
}

body.twilio-flex .skeleton-text:last-child { width: 60%; }

body.twilio-flex .skeleton-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

/* ===== FADE-IN ANIMATION ===== */
@keyframes flex-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

body.twilio-flex .flex-animate-in {
  animation: flex-fade-in 0.3s ease-out both;
}

/* ===== FOCUS VISIBLE ===== */
body.twilio-flex :focus-visible {
  outline: 2px solid var(--flex-accent);
  outline-offset: 2px;
}

/* ===== EMPTY STATE ===== */
body.twilio-flex .empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--flex-muted);
}

body.twilio-flex .empty-state i {
  font-size: 2.5rem;
  opacity: 0.4;
  margin-bottom: 0.75rem;
  display: block;
}

body.twilio-flex .empty-state p {
  font-size: 0.9rem;
  max-width: 320px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== DARK THEME SUPPORT ===== */
:root[data-theme="dark"] {
  --flex-bg: #020617;
  --flex-surface: #0f172a;
  --flex-border: rgba(71, 85, 105, 0.5);
  --flex-text: #e2e8f0;
  --flex-muted: #94a3b8;
  --flex-accent-hover: #3b82f6;
  --flex-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --flex-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --flex-shadow-lg: 0 12px 28px -8px rgba(0, 0, 0, 0.4);
}

:root[data-theme="dark"] body.twilio-flex {
  background: none;
  color: var(--flex-text);
}

:root[data-theme="dark"] body.twilio-flex .card,
:root[data-theme="dark"] body.twilio-flex .card-custom,
:root[data-theme="dark"] body.twilio-flex .card-standard,
:root[data-theme="dark"] body.twilio-flex .panel,
:root[data-theme="dark"] body.twilio-flex .modal-content {
  border-color: var(--flex-border);
  box-shadow: 0 12px 28px -22px rgba(2, 6, 23, 0.8);
}

:root[data-theme="dark"] body.twilio-flex .card:hover {
  box-shadow: 0 16px 36px -10px rgba(2, 6, 23, 0.6);
}

:root[data-theme="dark"] body.twilio-flex .table th {
  background: rgba(30, 41, 59, 0.6);
  color: var(--flex-muted);
  border-bottom-color: var(--flex-border);
}

:root[data-theme="dark"] body.twilio-flex .table td {
  border-bottom-color: rgba(71, 85, 105, 0.3);
}

:root[data-theme="dark"] body.twilio-flex .table tbody tr:hover td {
  background: rgba(31, 111, 255, 0.05);
}

:root[data-theme="dark"] body.twilio-flex .form-control,
:root[data-theme="dark"] body.twilio-flex .form-select,
:root[data-theme="dark"] body.twilio-flex textarea {
  border-color: rgba(71, 85, 105, 0.7);
}

:root[data-theme="dark"] body.twilio-flex .input-group-text {
  border-color: rgba(71, 85, 105, 0.7);
}

:root[data-theme="dark"] body.twilio-flex .nav-item.active,
:root[data-theme="dark"] body.twilio-flex .nav-link.active,
:root[data-theme="dark"] body.twilio-flex .menu-item.active {
  background: rgba(37, 99, 235, 0.2) !important;
  color: #93c5fd !important;
}

:root[data-theme="dark"] body.twilio-flex .dropdown-menu {
  background: #1e293b;
  border-color: rgba(71, 85, 105, 0.5);
}

:root[data-theme="dark"] body.twilio-flex .dropdown-item:hover,
:root[data-theme="dark"] body.twilio-flex .dropdown-item:focus {
  background: rgba(59, 130, 246, 0.12);
  color: #93c5fd;
}

:root[data-theme="dark"] body.twilio-flex .alert {
  border: 1px solid var(--flex-border);
}

:root[data-theme="dark"] body.twilio-flex ::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.25);
}

:root[data-theme="dark"] body.twilio-flex ::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.4);
}

:root[data-theme="dark"] body.twilio-flex .skeleton {
  background: linear-gradient(90deg, #1e293b 25%, #334155 37%, #1e293b 63%);
  background-size: 400px 100%;
}

:root[data-theme="dark"] body.twilio-flex .empty-state {
  color: var(--flex-muted);
}

:root[data-theme="dark"] body.twilio-flex .status-dot-success { box-shadow: 0 0 0 3px rgba(20, 184, 111, 0.15); }
:root[data-theme="dark"] body.twilio-flex .status-dot-danger  { box-shadow: 0 0 0 3px rgba(219, 58, 68, 0.15); }
:root[data-theme="dark"] body.twilio-flex .status-dot-warning { box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15); }
:root[data-theme="dark"] body.twilio-flex .status-dot-info    { box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15); }