/* ═══════════════════════════════════════════════════════════════════════════
   DESIGN SYSTEM COMPONENTS
   Layer 3: Shared UI components used across portal and admin.
   All colors via semantic tokens — zero hardcoded hex.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ---------------------------------------------------------------------------
   Float Field (animated label input)
   Uses ~ label (general sibling) so password-toggle buttons between
   input and label don't break the selector.
   --------------------------------------------------------------------------- */
.float-field {
  position: relative;
  margin-bottom: 1.25rem;
}

.float-field input,
.float-field textarea,
.float-field select {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border, var(--border-input));
  padding: 18px 0 8px;
  font-size: 16px;
  font-family: var(--ref-font-sans);
  color: var(--text, var(--text-primary));
  outline: none;
  border-radius: 0;
  -webkit-appearance: none;
}

.float-field input::placeholder,
.float-field textarea::placeholder {
  color: transparent;
}

.float-field::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.4s, left 0.4s;
  transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}

.float-field:focus-within::after {
  width: 100%;
  left: 0;
}

.float-field label {
  position: absolute;
  top: 18px;
  left: 0;
  color: var(--muted, var(--text-muted));
  font-size: 16px;
  font-weight: 500;
  pointer-events: none;
  transition: all 0.3s ease;
}

/* General sibling (~) handles password toggle button between input and label */
.float-field input:focus ~ label,
.float-field input:not(:placeholder-shown) ~ label,
.float-field textarea:focus ~ label,
.float-field textarea:not(:placeholder-shown) ~ label {
  top: -5px;
  font-size: 12px;
  color: var(--accent);
}

/* Selects and date inputs always show value — label always floated */
.float-field select ~ label,
.float-field input[type="date"] ~ label,
.float-field input[type="datetime-local"] ~ label {
  top: -5px;
  font-size: 12px;
  color: var(--accent);
}

/* Specificity boost: ensure .float-field overrides modal/form input rules */
.float-field input:not([type="checkbox"]):not([type="hidden"]):not([type="file"]),
.float-field textarea,
.float-field select {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border, var(--border-input));
  padding: 18px 0 8px;
  border-radius: 0;
}

.float-field input:not([type="checkbox"]):not([type="hidden"]):not([type="file"]):focus,
.float-field textarea:focus,
.float-field select:focus {
  outline: none;
  border: none;
  border-bottom: 1px solid var(--border, var(--border-input));
  box-shadow: none;
}

/* ---------------------------------------------------------------------------
   Tab Content
   --------------------------------------------------------------------------- */
.tab-content {
  display: none;
  animation: fadeIn 0.2s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------------------------------------------------------------------------
   TC Panel (card surface)
   --------------------------------------------------------------------------- */
.tc-panel {
  background-color: var(--panel, var(--surface-card));
  border: 1px solid var(--border, var(--border-subtle));
  border-radius: var(--ref-radius-lg);
  box-shadow: 0 4px 20px var(--shadow-color, var(--shadow-raw));
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.tc-card {
  background-color: var(--tc-surface, var(--surface-card));
  border: 1px solid var(--tc-border, var(--border-default));
  border-radius: var(--tc-radius, var(--ref-radius-lg));
  transition: border-color 0.2s, transform 0.2s;
}

.tc-card:hover {
  border-color: var(--ref-neutral-350);
}

.tc-card:active {
  transform: scale(0.99);
}

/* ---------------------------------------------------------------------------
   TC Panel Alert
   --------------------------------------------------------------------------- */
.tc-panel-alert {
  background: var(--panel-alert-bg, var(--alert-bg));
  border: 1px solid var(--panel-alert-border, var(--alert-border));
  border-radius: var(--ref-radius-lg);
}

/* ---------------------------------------------------------------------------
   TC Input
   --------------------------------------------------------------------------- */
.tc-input {
  background: var(--input-bg, var(--surface-input));
  border: 1px solid var(--input-border, var(--border-input));
  border-radius: var(--ref-radius-md);
  color: var(--text, var(--text-primary));
  transition: all 0.2s ease;
}

.tc-input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--input-bg, var(--surface-input));
}

/* ---------------------------------------------------------------------------
   TC Nav (backdrop-blur nav bar)
   --------------------------------------------------------------------------- */
.tc-nav {
  background-color: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border, var(--border-subtle));
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.tc-top-nav {
  background-color: transparent;
  border-bottom: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* ---------------------------------------------------------------------------
   TC Button
   --------------------------------------------------------------------------- */
.tc-btn {
  background-color: var(--accent);
  color: var(--ref-light-card);
  transition: background-color 0.2s, transform 0.1s;
}

.tc-btn:hover {
  background-color: var(--accent-hover);
}

.tc-btn:active {
  transform: scale(0.98);
}

/* ---------------------------------------------------------------------------
   TC Badge (status indicators)
   --------------------------------------------------------------------------- */
.tc-badge,
.portal-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--ref-radius-sm);
  line-height: 1.3;
}

.portal-badge-signed { background: var(--ref-badge-green-bg); color: var(--ref-badge-green-text); }
.portal-badge-sent { background: var(--ref-badge-yellow-bg); color: var(--ref-badge-yellow-text); }
.portal-badge-viewed { background: var(--ref-badge-blue-bg); color: var(--ref-badge-blue-text); }
.portal-badge-draft { background: var(--ref-badge-gray-bg); color: var(--ref-badge-gray-text); }
.portal-badge-expired { background: var(--ref-badge-red-bg); color: var(--ref-badge-red-text); }
.portal-badge-voided { background: var(--ref-badge-red-bg); color: var(--ref-badge-red-text); }
.portal-badge-paid { background: var(--ref-badge-green-bg); color: var(--ref-badge-green-text); }
.portal-badge-pending { background: var(--ref-badge-yellow-bg); color: var(--ref-badge-yellow-text); }
.portal-badge-failed { background: var(--ref-badge-red-bg); color: var(--ref-badge-red-text); }
.portal-badge-refunded { background: var(--ref-badge-purple-bg); color: var(--ref-badge-purple-text); }
.portal-badge-confirmed { background: var(--ref-badge-blue-bg); color: var(--ref-badge-blue-text); }
.portal-badge-completed { background: var(--ref-badge-green-bg); color: var(--ref-badge-green-text); }
.portal-badge-cancelled { background: var(--ref-badge-red-bg); color: var(--ref-badge-red-text); }
.portal-badge-in_progress { background: var(--ref-badge-blue-bg); color: var(--ref-badge-blue-text); }

/* Admin tag variants */
.tc-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  white-space: nowrap;
}

.tag-blue { background: rgba(96, 165, 250, 0.15); color: var(--tc-accent, var(--accent)); }
.tag-pink { background: rgba(244, 114, 182, 0.15); color: var(--tc-pink, var(--ref-pink-500)); }
.tag-green { background: rgba(16, 185, 129, 0.15); color: var(--tc-green, var(--status-success)); }
.tag-amber { background: rgba(245, 158, 11, 0.15); color: var(--tc-amber, var(--status-warning)); }
.tag-purple { background: rgba(167, 139, 250, 0.15); color: var(--tc-purple, var(--ref-purple-500)); }
.tag-red { background: rgba(239, 68, 68, 0.15); color: var(--tc-red, var(--status-danger)); }
.tag-neutral { background: rgba(148, 163, 184, 0.15); color: var(--text-muted); }

/* ---------------------------------------------------------------------------
   TC Empty State
   --------------------------------------------------------------------------- */
.tc-empty,
.portal-empty {
  text-align: center;
  padding: 1.5rem 1rem;
  color: var(--muted, var(--text-muted));
  font-size: 0.88rem;
}

.empty-state {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--ref-neutral-475);
  font-size: 0.85rem;
}

.empty-state-enhanced {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state-icon {
  width: 40px;
  height: 40px;
  color: var(--ref-neutral-475);
  opacity: 0.3;
}

.empty-state-icon svg {
  width: 100%;
  height: 100%;
}

.empty-state-message {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ref-neutral-475);
}

.empty-state-sub {
  font-size: 0.75rem;
  color: var(--ref-neutral-450);
}

/* ---------------------------------------------------------------------------
   TC Spinner
   --------------------------------------------------------------------------- */
.tc-spinner,
.portal-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
}

.tc-spinner::after,
.portal-spinner::after {
  content: '';
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: tc-spin 0.7s linear infinite;
}

@keyframes tc-spin {
  to { transform: rotate(360deg); }
}

/* ---------------------------------------------------------------------------
   TC Toast (portal style — fixed bottom center)
   --------------------------------------------------------------------------- */
.tc-toast,
.portal-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ref-light-card);
  background: var(--panel, var(--surface-card));
  border: 1px solid var(--border, var(--border-subtle));
  border-radius: var(--ref-radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  z-index: 9999;
  transition: transform 0.3s ease;
  pointer-events: auto;
  cursor: pointer;
}

.tc-toast.visible,
.portal-toast.visible {
  transform: translateX(-50%) translateY(0);
}

.tc-toast.error,
.portal-toast.error { background: var(--toast-error); }
.tc-toast.success,
.portal-toast.success { background: var(--toast-success); }
.tc-toast.warning,
.portal-toast.warning { background: var(--toast-warning); }
.tc-toast.info,
.portal-toast.info { background: var(--toast-info); }

/* Admin toast (top-right slide-in) */
.toast-container {
  position: fixed;
  top: 68px;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  padding: 0.65rem 1.25rem;
  font-family: var(--ref-font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--ref-radius-sm);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.3s, transform 0.3s;
}

.toast-show { opacity: 1; transform: translateX(0); }
.toast-hide { opacity: 0; transform: translateX(20px); }
.toast-success { color: var(--ref-neutral-0); background: var(--toast-admin-success); }
.toast-error { color: var(--ref-light-card); background: var(--toast-admin-error); }
.toast-warning { color: var(--ref-neutral-0); background: var(--toast-admin-warning); }
.toast-info { color: var(--ref-light-card); background: var(--toast-admin-info); }

.toast-action-btn {
  margin-left: 0.6rem;
  padding: 0.15rem 0.45rem;
  font-family: var(--ref-font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  color: inherit;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--ref-radius-sm);
  cursor: pointer;
}

/* ---------------------------------------------------------------------------
   TC Modal Close
   --------------------------------------------------------------------------- */
.tc-modal-close,
.portal-modal-close {
  width: 2.25rem;
  height: 2.25rem;
  min-width: 2.25rem;
  min-height: 2.25rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  font-size: 1.5rem;
  line-height: 1;
}

.tc-modal-close svg,
.portal-modal-close svg {
  width: 1.05rem;
  height: 1.05rem;
}

.tc-modal-close:focus-visible,
.portal-modal-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

/* ---------------------------------------------------------------------------
   Subtabs Container (fade edge)
   --------------------------------------------------------------------------- */
.subtabs-container {
  position: relative;
}

.subtabs-container::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 30px;
  background: linear-gradient(to right, transparent, var(--bg, var(--surface-page)));
  pointer-events: none;
}

/* ---------------------------------------------------------------------------
   Toggle Switch (used by both portal and admin)
   --------------------------------------------------------------------------- */
.toggle-checkbox:checked {
  right: 0;
  border-color: var(--status-success);
}

.toggle-checkbox:checked + .toggle-label {
  background-color: var(--status-success);
}

.toggle-checkbox:checked + .toggle-label:after {
  transform: translateX(100%);
}

/* ---------------------------------------------------------------------------
   Drawer / Backdrop helpers
   --------------------------------------------------------------------------- */
.drawer-open {
  transform: translateY(0) scale(1) !important;
  opacity: 1 !important;
  pointer-events: auto !important;
}

.backdrop-open {
  opacity: 1 !important;
  pointer-events: auto !important;
}

/* ---------------------------------------------------------------------------
   Bottom-sheet drawer (portable — used in CRM, portal, etc.)
   --------------------------------------------------------------------------- */
.tc-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, var(--ambient-opacity));
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.tc-drawer-overlay.backdrop-open {
  opacity: 1;
  pointer-events: auto;
}

.tc-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 101;
  max-height: 80vh;
  background: var(--surface-card);
  border-radius: var(--ref-radius-lg) var(--ref-radius-lg) 0 0;
  box-shadow: var(--shadow-md);
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.tc-drawer.drawer-open {
  transform: translateY(0);
}

.tc-drawer-handle {
  width: 36px;
  height: 4px;
  background: var(--border-medium);
  border-radius: 2px;
  margin: 10px auto 0;
  flex-shrink: 0;
}

.tc-drawer-header {
  display: flex;
  align-items: center;
  gap: var(--tc-space-sm);
  padding: var(--tc-space-md) var(--tc-space-lg);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.tc-drawer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
}
.tc-drawer-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.tc-drawer-close {
  margin-left: auto;
}

.tc-drawer-body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--tc-space-lg);
  flex: 1;
  min-height: 0;
}

.tc-drawer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--tc-space-sm);
}

.tc-drawer-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--tc-space-xs);
  padding: var(--tc-space-lg) var(--tc-space-sm);
  background: var(--surface-card-hover);
  border: 1px solid var(--border-subtle);
  border-radius: var(--ref-radius-md);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.tc-drawer-tile:active {
  background: var(--surface-card);
}
.tc-drawer-tile.active {
  background: var(--accent-glow);
  color: var(--tc-accent);
  border-color: var(--tc-accent);
}

.tc-drawer-tile-icon {
  width: 22px;
  height: 22px;
}
.tc-drawer-tile-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-align: center;
  line-height: 1.2;
}

/* Drawer footer — user profile row */
.tc-drawer-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border-subtle);
  padding: var(--tc-space-md) var(--tc-space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tc-space-sm);
}
.tc-drawer-user {
  display: flex;
  align-items: center;
  gap: var(--tc-space-sm);
  min-width: 0;
  flex: 1;
}
.tc-drawer-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border-medium);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-primary);
  flex-shrink: 0;
  overflow: hidden;
}
.tc-drawer-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.tc-drawer-user-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.tc-drawer-user-name {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tc-drawer-user-email {
  margin: 0;
  font-size: 0.65rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tc-drawer-user-actions {
  display: flex;
  align-items: center;
  gap: var(--tc-space-xs);
  flex-shrink: 0;
}
.tc-drawer-action-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface-card-hover);
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}
.tc-drawer-action-btn:active {
  background: var(--surface-card);
}

/* ---------------------------------------------------------------------------
   Utility helpers (shared across portal and admin)
   --------------------------------------------------------------------------- */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
.portal-hidden { display: none !important; }