/* ============================================================
   Quantum Whale Portal — Components
   Buttons, Cards, Forms, Stars, NPS, Badges, Modals, Tables
   ============================================================ */

/* ══════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 28px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}
.btn:hover::after { background: rgba(255,255,255,0.08); }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: var(--text-inverse);
  box-shadow: 0 4px 16px rgba(0,82,148,0.28);
}
.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(0,82,148,0.38);
  transform: translateY(-1px);
  color: var(--text-inverse);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-secondary:hover {
  background: var(--bg-muted);
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-ghost:hover {
  background: var(--bg-muted);
  color: var(--text-primary);
  border-color: var(--color-primary);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}
.btn-danger:hover { background: #dc2626; }

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-sm);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--font-size-md);
  border-radius: var(--border-radius-md);
}

.btn-icon {
  padding: 10px;
  aspect-ratio: 1;
  border-radius: var(--border-radius);
}

.btn-full { width: 100%; }

.btn:disabled, .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ══════════════════════════════════════════════════════════
   CARDS
   ══════════════════════════════════════════════════════════ */

.card {
  background: var(--bg-surface);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover { box-shadow: var(--shadow-lg); }

.card-body { padding: var(--space-6); }
.card-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.card-header h2,
.card-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
  background: var(--bg-subtle);
}

/* Stat Card */
.stat-card {
  background: var(--bg-surface);
  border-radius: var(--border-radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.stat-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.stat-card .stat-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: var(--space-2);
}

.stat-card .stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .stat-sub {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ══════════════════════════════════════════════════════════
   FORMS
   ══════════════════════════════════════════════════════════ */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-label .required-mark {
  color: var(--color-danger);
  font-weight: var(--font-weight-bold);
}

.badge-optional {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  background: var(--bg-muted);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-full);
  border: 1px solid var(--border-color);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-accent);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: var(--line-height-relaxed);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234a6080' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Error state */
.form-input.has-error,
.form-select.has-error,
.form-textarea.has-error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}

.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  font-weight: var(--font-weight-medium);
  animation: shakeIn 0.3s ease;
}

@keyframes shakeIn {
  0%, 100% { transform: translateX(0); }
  20%  { transform: translateX(-4px); }
  40%  { transform: translateX(4px); }
  60%  { transform: translateX(-3px); }
  80%  { transform: translateX(3px); }
}

/* ══════════════════════════════════════════════════════════
   STAR RATING
   ══════════════════════════════════════════════════════════ */

.star-rating {
  display: inline-flex;
  flex-direction: row-reverse;
  gap: 4px;
}

.star-rating input {
  display: none;
}

.star-rating label {
  cursor: pointer;
  font-size: var(--star-size);
  color: var(--star-empty);
  transition: color var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
  -webkit-user-select: none;
  user-select: none;
}

.star-rating label::before {
  content: '★';
}

.star-rating input:checked ~ label,
.star-rating label:hover,
.star-rating label:hover ~ label {
  color: var(--star-filled);
  transform: scale(1.1);
}

.star-rating input:checked ~ label {
  transform: scale(1);
}

/* Read-only star display */
.star-display {
  display: inline-flex;
  gap: 3px;
  font-size: 20px;
}
.star-display .star-filled { color: var(--star-filled); }
.star-display .star-empty  { color: var(--star-empty); }

/* Compact star */
.star-rating-sm label { font-size: 22px; }

/* ══════════════════════════════════════════════════════════
   NPS SELECTOR
   ══════════════════════════════════════════════════════════ */

.nps-wrapper { width: 100%; }

.nps-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  font-weight: var(--font-weight-medium);
}

.nps-grid {
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  gap: 6px;
}

.nps-btn {
  aspect-ratio: 1;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-surface);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 8px 4px;
  font-family: var(--font-family);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nps-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-primary);
  background: var(--bg-muted);
  transform: scale(1.08);
}

.nps-btn.selected {
  color: white;
  border-color: transparent;
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* NPS color coding by value */
.nps-btn[data-score="0"].selected,
.nps-btn[data-score="1"].selected,
.nps-btn[data-score="2"].selected,
.nps-btn[data-score="3"].selected,
.nps-btn[data-score="4"].selected,
.nps-btn[data-score="5"].selected,
.nps-btn[data-score="6"].selected { background: var(--color-detractor); }

.nps-btn[data-score="7"].selected,
.nps-btn[data-score="8"].selected { background: var(--color-passive); }

.nps-btn[data-score="9"].selected,
.nps-btn[data-score="10"].selected { background: var(--color-promoter); }

.nps-score-label {
  text-align: center;
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  min-height: 20px;
  transition: all var(--transition-fast);
}

.nps-score-label.promoter  { color: var(--color-promoter); }
.nps-score-label.passive   { color: var(--color-passive); }
.nps-score-label.detractor { color: var(--color-detractor); }

/* ══════════════════════════════════════════════════════════
   CHECKBOXES
   ══════════════════════════════════════════════════════════ */

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  background: var(--bg-surface);
}

.checkbox-item:hover {
  border-color: var(--color-accent);
  background: var(--bg-muted);
}

.checkbox-item input[type="checkbox"] {
  display: none;
}

.checkbox-item .checkbox-box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  background: var(--bg-surface);
}

.checkbox-item input:checked + .checkbox-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-item input:checked + .checkbox-box::after {
  content: '';
  width: 5px;
  height: 9px;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
}

.checkbox-item.is-checked {
  border-color: var(--color-primary);
  background: rgba(0,82,148,0.04);
}

.checkbox-item .checkbox-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

/* ══════════════════════════════════════════════════════════
   PROGRESS STEPS
   ══════════════════════════════════════════════════════════ */

.step-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: var(--space-6) var(--space-4);
  overflow-x: auto;
}

.step-item {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.step-bubble {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  border: 2px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-muted);
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
}

.step-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.step-label {
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  white-space: nowrap;
  margin-top: var(--space-1);
  transition: color var(--transition-base);
}

.step-connector {
  width: 40px;
  height: 2px;
  background: var(--border-color);
  margin: 0 4px;
  position: relative;
  top: -10px;
  transition: background var(--transition-base);
}

/* Active step */
.step-item.active .step-bubble {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  box-shadow: 0 0 0 4px rgba(0,82,148,0.15);
  transform: scale(1.1);
}

.step-item.active .step-label { color: var(--color-primary); font-weight: var(--font-weight-semibold); }

/* Completed step */
.step-item.completed .step-bubble {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}
.step-item.completed + .step-connector { background: var(--color-accent); }
.step-item.completed .step-label { color: var(--color-accent); }

/* ══════════════════════════════════════════════════════════
   ALERTS & BADGES
   ══════════════════════════════════════════════════════════ */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-4);
}

.alert-success { background: var(--color-success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-error   { background: var(--color-danger-light);  color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--color-warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius-full);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-primary  { background: rgba(0,82,148,0.1);   color: var(--color-primary); }
.badge-accent   { background: rgba(26,176,214,0.1); color: var(--color-accent-dark); }
.badge-success  { background: var(--color-success-light); color: #166534; }
.badge-danger   { background: var(--color-danger-light);  color: #991b1b; }
.badge-warning  { background: var(--color-warning-light); color: #92400e; }
.badge-neutral  { background: var(--bg-muted); color: var(--text-secondary); }

/* NPS Badges */
.nps-badge-promoter  { background: rgba(34,197,94,0.12); color: #166534; }
.nps-badge-passive   { background: rgba(245,158,11,0.12); color: #92400e; }
.nps-badge-detractor { background: rgba(239,68,68,0.12);  color: #991b1b; }

/* ══════════════════════════════════════════════════════════
   TABLE
   ══════════════════════════════════════════════════════════ */

.data-table-wrapper {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

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

.data-table thead {
  background: var(--bg-muted);
  position: sticky;
  top: 0;
  z-index: var(--z-base);
}

.data-table th {
  padding: 14px 16px;
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: color var(--transition-fast);
}

.data-table th:hover { color: var(--color-primary); }

.data-table th .sort-icon {
  display: inline-block;
  margin-left: var(--space-1);
  opacity: 0.4;
  font-size: 10px;
}

.data-table th.sorted-asc .sort-icon,
.data-table th.sorted-desc .sort-icon { opacity: 1; color: var(--color-primary); }

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background var(--transition-fast);
  cursor: pointer;
}

.data-table tbody tr:hover { background: var(--bg-muted); }
.data-table tbody tr:last-child td { border-bottom: none; }

.table-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.table-search {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
  position: relative;
}

.table-search input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background: var(--bg-surface);
  transition: border-color var(--transition-fast);
}

.table-search input:focus { outline: none; border-color: var(--color-accent); box-shadow: var(--shadow-focus); }

.table-search .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

/* ── Filter Bar ── */
.filter-bar {
  display: flex;
  align-items: flex-end;
  gap: var(--space-4);
  flex-wrap: wrap;
  width: 100%;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 150px;
  flex: 1;
}

.filter-group label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
}

.filter-select,
.filter-date {
  padding: 8px 12px;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  height: 38px;
  width: 100%;
}

.filter-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234a6080' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  appearance: none;
  -webkit-appearance: none;
}

.filter-select:hover,
.filter-date:hover {
  border-color: var(--color-accent);
}

.filter-select:focus,
.filter-date:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
  background: var(--bg-subtle);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.pagination-info {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.pagination-controls {
  display: flex;
  gap: var(--space-1);
}

.page-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-family);
}

.page-btn:hover { border-color: var(--color-accent); color: var(--color-primary); background: var(--bg-muted); }
.page-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: white; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ══════════════════════════════════════════════════════════
   MODAL
   ══════════════════════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--bg-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 440px;
  width: 100%;
  padding: var(--space-8);
  transform: scale(0.95) translateY(16px);
  transition: transform var(--transition-spring);
}

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

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.modal-body { color: var(--text-secondary); margin-bottom: var(--space-6); }

.modal-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* ══════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
   ══════════════════════════════════════════════════════════ */

.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  pointer-events: all;
  min-width: 280px;
  max-width: 400px;
  animation: toastIn 0.3s var(--transition-spring) forwards;
}

.toast.removing { animation: toastOut 0.25s ease forwards; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}

.toast-success { background: var(--color-success-light); color: #166534; border: 1px solid #bbf7d0; }
.toast-error   { background: var(--color-danger-light);  color: #991b1b; border: 1px solid #fecaca; }
.toast-info    { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

/* ══════════════════════════════════════════════════════════
   LOADING / SKELETON
   ══════════════════════════════════════════════════════════ */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-light-blue);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

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

.skeleton {
  background: linear-gradient(90deg, var(--bg-muted) 25%, var(--border-color) 50%, var(--bg-muted) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--border-radius);
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ══════════════════════════════════════════════════════════
   CHART CARD
   ══════════════════════════════════════════════════════════ */

.chart-card {
  background: var(--bg-surface);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  padding: var(--space-6);
}

.chart-card .chart-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}

.chart-card canvas {
  max-height: 280px;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE HELPERS
   ══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .nps-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
  }
  .nps-btn { font-size: 13px; padding: 6px 2px; }

  .step-progress {
    gap: 0;
    padding: var(--space-4) var(--space-2);
    justify-content: flex-start;
  }

  .step-connector { width: 24px; }
  .step-label { font-size: 9px; }
  .step-bubble { width: 30px; height: 30px; font-size: 12px; }

  .checkbox-group { grid-template-columns: 1fr; }

  .table-toolbar { flex-direction: column; align-items: stretch; }
  .table-search  { max-width: 100%; }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .filter-group {
    width: 100%;
    min-width: 100%;
  }

  .modal-box { padding: var(--space-6); }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions .btn { width: 100%; }

  .data-table-wrapper { overflow-x: auto; }
  .data-table { min-width: 700px; }
}

/* ══════════════════════════════════════════════════════════
   THEME TOGGLE
   ══════════════════════════════════════════════════════════ */
.theme-toggle-btn {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--border-radius-full);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: white;
  transition: all var(--transition-fast);
  padding: 0;
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* In header with dark backgrounds or light contexts */
.theme-toggle-btn.dark-btn {
  color: var(--text-secondary);
  border-color: var(--border-color);
}
.theme-toggle-btn.dark-btn:hover {
  background: var(--bg-muted);
  color: var(--text-primary);
  border-color: var(--color-primary);
}