/* ============================================
   Calculator-Specific Styles
   ============================================ */

/* --- Course Table --- */
.course-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-surface);
}

.course-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.course-table thead {
  background: var(--bg-surface-hover);
  border-bottom: 1px solid var(--border-color);
}

.course-table th {
  padding: var(--space-3) var(--space-3);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  white-space: nowrap;
  user-select: none;
}

.course-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

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

.course-table tr:hover {
  background: var(--bg-surface-hover);
}

.course-table tr.excluded {
  opacity: 0.5;
}

.course-table tr.dragging {
  opacity: 0.4;
  background: var(--color-info-bg);
}

.course-table tr.drag-over {
  border-top: 2px solid var(--brand-primary);
}

/* Table cell inputs */
.course-table .cell-input {
  width: 100%;
  padding: var(--space-1) var(--space-2);
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.course-table .cell-input:hover {
  border-color: var(--border-color);
  background: var(--bg-surface);
}

.course-table .cell-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  background: var(--bg-surface);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.course-table .cell-input.error {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.course-table .cell-input.name-input { min-width: 140px; }
.course-table .cell-input.grade-input { width: 72px; text-align: center; }
.course-table .cell-input.credits-input { width: 60px; text-align: center; }

.course-table .cell-select {
  padding: var(--space-1) var(--space-2);
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  color: var(--text-primary);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 20px;
}

.course-table .cell-select:hover {
  border-color: var(--border-color);
  background-color: var(--bg-surface);
}

.course-table .cell-select:focus {
  outline: none;
  border-color: var(--brand-primary);
  background-color: var(--bg-surface);
}

/* Row number / drag handle */
.row-handle {
  width: 28px;
  text-align: center;
  color: var(--text-tertiary);
  cursor: grab;
  user-select: none;
  font-size: var(--font-size-xs);
}
.row-handle:active { cursor: grabbing; }
.row-handle .drag-icon {
  display: none;
  width: 14px;
  height: 14px;
}
.course-table tr:hover .row-handle .row-num { display: none; }
.course-table tr:hover .row-handle .drag-icon { display: inline-block; }

/* Row actions */
.row-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.course-table tr:hover .row-actions { opacity: 1; }

.row-action-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-tertiary);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.row-action-btn:hover {
  background: var(--bg-surface-active);
  color: var(--text-primary);
}
.row-action-btn.delete:hover {
  background: var(--color-error-bg);
  color: var(--color-error);
}
.row-action-btn svg { width: 14px; height: 14px; }

/* Row badges */
.row-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-radius: var(--border-radius-full);
  margin-left: var(--space-2);
}
.row-badge.excluded { background: var(--gray-200); color: var(--gray-500); }
.row-badge.pass-fail { background: var(--color-warning-bg); color: var(--color-warning); }
[data-theme="dark"] .row-badge.excluded { background: var(--gray-700); color: var(--gray-400); }

/* Include checkbox */
.include-check {
  display: flex;
  align-items: center;
  justify-content: center;
}
.include-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--brand-primary);
  cursor: pointer;
}

/* Level badge in table */
.level-badge {
  display: inline-flex;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--border-radius-full);
  text-transform: uppercase;
}
.level-badge.regular { background: var(--gray-100); color: var(--gray-500); }
.level-badge.honors { background: #ede9fe; color: #7c3aed; }
.level-badge.ap { background: #dbeafe; color: #2563eb; }
.level-badge.ib { background: #d1fae5; color: #059669; }
[data-theme="dark"] .level-badge.regular { background: var(--gray-700); color: var(--gray-400); }
[data-theme="dark"] .level-badge.honors { background: #2e1065; color: #a78bfa; }
[data-theme="dark"] .level-badge.ap { background: #172554; color: #60a5fa; }
[data-theme="dark"] .level-badge.ib { background: #052e16; color: #34d399; }

/* --- Table Toolbar --- */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  flex-wrap: wrap;
  gap: var(--space-2);
}

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

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

.preset-selector {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.preset-selector label {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  font-weight: 600;
  white-space: nowrap;
}
.preset-selector select {
  padding: var(--space-1) var(--space-2);
  padding-right: 24px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface);
  font-size: var(--font-size-xs);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  color: var(--text-primary);
}

/* Bulk edit bar */
.bulk-edit-bar {
  display: none;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--color-info-bg);
  border-bottom: 1px solid rgba(37, 99, 235, 0.15);
  gap: var(--space-3);
  font-size: var(--font-size-sm);
}
.bulk-edit-bar.show { display: flex; }
.bulk-edit-bar .selected-count {
  font-weight: 600;
  color: var(--brand-primary);
}

/* --- What-If Panel --- */
.whatif-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.whatif-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.04), rgba(124, 58, 237, 0.04));
  border-bottom: 1px solid var(--border-color);
}
.whatif-header h4 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.whatif-header h4 svg { width: 16px; height: 16px; color: var(--brand-bismuth); }

.whatif-body { padding: var(--space-4); }

.whatif-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-color);
  font-size: var(--font-size-sm);
}
.whatif-row:last-child { border-bottom: none; }

.whatif-course-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-secondary);
}

.whatif-grade-select {
  width: 64px;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: var(--font-size-xs);
  text-align: center;
  background: var(--bg-surface);
  color: var(--text-primary);
}

.whatif-delta {
  font-size: var(--font-size-xs);
  font-weight: 700;
  min-width: 50px;
  text-align: right;
}
.whatif-delta.positive { color: var(--color-success); }
.whatif-delta.negative { color: var(--color-error); }
.whatif-delta.neutral { color: var(--text-tertiary); }

/* Scenario Tabs */
.scenario-tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-surface-hover);
  overflow-x: auto;
}
.scenario-tab {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  background: var(--bg-surface);
  font-size: var(--font-size-xs);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}
.scenario-tab:hover { border-color: var(--brand-primary); color: var(--brand-primary); }
.scenario-tab.active {
  background: var(--brand-primary);
  color: white;
  border-color: var(--brand-primary);
}

/* --- Show Steps Drawer --- */
.steps-drawer {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  margin-top: var(--space-4);
}

.steps-drawer-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: none;
  background: var(--bg-surface-hover);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  color: var(--text-primary);
  transition: background var(--transition-fast);
}
.steps-drawer-trigger:hover { background: var(--bg-surface-active); }
.steps-drawer-trigger svg {
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  transition: transform var(--transition-base);
}
.steps-drawer.open .steps-drawer-trigger svg { transform: rotate(180deg); }

.steps-drawer-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.steps-list {
  padding: var(--space-4);
  font-size: var(--font-size-sm);
}

.step-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-color);
}
.step-item:last-child { border-bottom: none; }

.step-course { flex: 1; color: var(--text-secondary); }
.step-detail { font-family: var(--font-mono); color: var(--text-primary); font-weight: 600; }
.step-points { min-width: 60px; text-align: right; font-family: var(--font-mono); color: var(--brand-primary); font-weight: 600; }

.steps-summary {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface-hover);
  border-top: 1px solid var(--border-color);
  font-size: var(--font-size-sm);
}
.steps-formula {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  text-align: center;
  padding: var(--space-2);
}

/* --- Comparison View --- */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.comparison-card {
  text-align: center;
  padding: var(--space-5);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-surface);
}
.comparison-card.highlighted {
  border-color: var(--brand-primary);
  background: var(--color-info-bg);
}
.comparison-method {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}
.comparison-value {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--text-primary);
}
.comparison-diff {
  font-size: var(--font-size-xs);
  margin-top: var(--space-2);
}

/* --- Realistic Meter --- */
.realistic-meter {
  margin-top: var(--space-4);
}
.realistic-label {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
  font-weight: 600;
}
.realistic-text {
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
}
.realistic-text.doable { background: var(--color-success-bg); color: var(--color-success); }
.realistic-text.challenging { background: var(--color-warning-bg); color: var(--color-warning); }
.realistic-text.veryhard { background: var(--color-error-bg); color: var(--color-error); }
.realistic-text.impossible { background: var(--color-error-bg); color: var(--color-error); }

/* --- Category Weights (Final Grade) --- */
.category-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.category-row {
  display: grid;
  grid-template-columns: 1fr 80px 80px 40px;
  gap: var(--space-3);
  align-items: center;
}
.category-row .form-input { text-align: center; }

/* --- Profile Selector --- */
.profile-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--space-4);
}
.profile-bar label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.profile-bar select {
  flex: 1;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  background: var(--bg-surface);
  color: var(--text-primary);
}

/* --- Scholarship Rules --- */
.rule-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-2);
}
.rule-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.rule-status.met { background: var(--color-success); }
.rule-status.unmet { background: var(--color-error); }
.rule-text { flex: 1; font-size: var(--font-size-sm); }
.rule-value { font-weight: 700; font-size: var(--font-size-sm); }

/* --- Paste Preview --- */
.paste-preview {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  margin: var(--space-4) 0;
}
.paste-preview table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.paste-preview th {
  padding: var(--space-2) var(--space-3);
  background: var(--bg-surface-hover);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-color);
}
.paste-preview td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border-color);
}
.paste-preview tr:last-child td { border-bottom: none; }

/* --- Column Mapper (CSV Import) --- */
.column-mapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}
.column-map-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.column-map-item label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-tertiary);
}

/* --- Accessibility High Contrast Mode --- */
@media (forced-colors: active) {
  .btn { border: 1px solid ButtonText; }
  .card { border: 1px solid CanvasText; }
  .course-table .cell-input { border: 1px solid CanvasText; }
  .gpa-number {
    -webkit-text-fill-color: LinkText;
    color: LinkText;
  }
}

/* --- Summary Card (Share) --- */
.share-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--space-6);
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
}
.share-card .card-brand {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}
.share-card .card-gpa {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--brand-primary);
}
.share-card .card-term {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-2);
}
.share-card .card-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-color);
  font-size: var(--font-size-sm);
}

/* --- Parent/Advisor View --- */
.advisor-view .course-table .cell-input.name-input { filter: blur(4px); }
.advisor-view .course-table .cell-input.name-input:hover { filter: none; }
.advisor-view .gpa-display { border: 2px solid var(--brand-primary); }