/* ============================================
   DESIGN SYSTEM - Education Management System
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Primary palette */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;

  /* Semantic colors */
  --color-success: #16a34a;
  --color-success-light: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-warning: #d97706;
  --color-warning-light: #fffbeb;
  --color-warning-border: #fde68a;
  --color-danger: #dc2626;
  --color-danger-light: #fef2f2;
  --color-danger-border: #fecaca;
  --color-info: #0891b2;
  --color-info-light: #ecfeff;

  /* Neutrals */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-hover: #f1f5f9;

  /* Spacing scale (4px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.875rem;
  --text-lg: 1rem;
  --text-xl: 1.125rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --leading-tight: 1.25;
  --leading-normal: 1.5;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

  /* Transitions */
  --transition-fast: 100ms ease;
  --transition-base: 150ms ease;
  --transition-slow: 250ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  line-height: var(--leading-tight);
  font-weight: 600;
  margin: 0 0 var(--space-4);
  color: var(--color-text);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); font-weight: 500; }

h1:focus { outline: none; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Page Header --- */
.page-header {
  margin-bottom: var(--space-6);
}

.page-header h1 {
  margin-bottom: var(--space-1);
}

.page-header p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* --- Alert / Status Messages --- */
.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  border: 1px solid;
  animation: alertSlideIn var(--transition-slow) ease-out;
}

@keyframes alertSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.alert-success {
  background: var(--color-success-light);
  border-color: var(--color-success-border);
  color: #15803d;
}

.alert-danger {
  background: var(--color-danger-light);
  border-color: var(--color-danger-border);
  color: #b91c1c;
}

.alert-warning {
  background: var(--color-warning-light);
  border-color: var(--color-warning-border);
  color: #92400e;
}

.alert-info {
  background: var(--color-info-light);
  border-color: #a5f3fc;
  color: #0e7490;
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.card-header {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-light);
}

/* --- Stat Cards --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--stat-color, var(--color-primary));
}

.stat-card .stat-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--stat-color, var(--color-primary));
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-card .stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: var(--space-3);
  align-items: flex-end;
  flex-wrap: wrap;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.filter-bar .field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.filter-bar .field-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-end;
  flex-wrap: wrap;
}

/* --- Form Elements --- */
label, .label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  display: block;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
input[type="time"],
input[type="month"],
input[type="search"],
select,
textarea {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  min-height: 36px;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

input:disabled, select:disabled, textarea:disabled {
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

select {
  cursor: pointer;
  min-width: 160px;
}

textarea {
  resize: vertical;
  min-height: 60px;
}

/* --- Form Groups --- */
.form-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 36px;
  text-decoration: none;
}

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

.btn-primary {
  background: var(--color-primary);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn-success {
  background: var(--color-success);
  color: white;
}
.btn-success:hover:not(:disabled) {
  background: #15803d;
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}
.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
}

.btn-warning {
  background: var(--color-warning);
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--color-hover);
  color: var(--color-text);
}

.btn-link {
  background: transparent;
  color: var(--color-primary);
  border: none;
  padding: var(--space-1) var(--space-2);
  min-height: auto;
}
.btn-link:hover:not(:disabled) {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  min-height: 28px;
}

.btn-icon {
  padding: var(--space-1);
  min-height: auto;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.btn-icon:hover {
  background: var(--color-hover);
  color: var(--color-text);
}

/* --- Tables --- */
.table-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

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

thead th {
  background: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}

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

tbody tr:hover {
  background: var(--color-hover);
}

tbody tr.expanded-row {
  background: var(--color-bg);
}

tbody tr.expanded-row:hover {
  background: var(--color-bg);
}

/* Numeric columns */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-nowrap { white-space: nowrap; }

/* Expanded/detail row */
.detail-panel {
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.detail-panel h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

/* Sub-table inside detail panel */
.detail-panel table {
  font-size: var(--text-sm);
}

.detail-panel thead th {
  background: var(--color-surface);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

.detail-panel tbody td {
  padding: var(--space-2) var(--space-3);
}

/* Table footer/totals row */
.table-footer td, tfoot td {
  background: var(--color-bg);
  font-weight: 600;
  border-top: 2px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
}

/* --- Badges / Status Pills --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-info {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-neutral {
  background: var(--color-bg);
  color: var(--color-text-secondary);
}

/* --- Progress Bars --- */
.progress-bar {
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

/* --- Empty States --- */
.empty-state {
  text-align: center;
  padding: var(--space-10) var(--space-6);
  color: var(--color-text-muted);
}

.empty-state .empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  opacity: 0.5;
}

.empty-state .empty-title {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.empty-state .empty-text {
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

/* --- Confirm Inline --- */
.confirm-inline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  background: var(--color-danger-light);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

/* --- Section --- */
.section {
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

/* --- Add Form (Card style) --- */
.add-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.add-form .form-title {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

/* --- Checkbox / Toggle --- */
input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* --- Chart containers --- */
.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.chart-card h3 {
  margin-bottom: var(--space-4);
}

/* --- Horizontal bar --- */
.h-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.h-bar-label {
  width: 120px;
  font-size: var(--text-sm);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--color-text-secondary);
}

.h-bar-track {
  flex: 1;
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  height: 22px;
  overflow: hidden;
}

.h-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  padding-left: var(--space-2);
  transition: width var(--transition-slow);
}

.h-bar-fill span {
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
}

.h-bar-value {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  min-width: 80px;
}

/* --- Quick Actions --- */
.quick-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-top: var(--space-6);
}

.quick-actions a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  color: white;
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: opacity var(--transition-fast);
}

.quick-actions a:hover {
  opacity: 0.9;
  text-decoration: none;
}

/* --- Inline edit --- */
.edit-input {
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  width: 100%;
  background: var(--color-primary-light);
}

.edit-input:focus {
  box-shadow: 0 0 0 2px var(--color-primary-100);
}

/* --- Attendance Grid Specific --- */
.attendance-cell {
  text-align: center;
  min-width: 36px;
}

.attendance-cell input[type="checkbox"] {
  width: 18px;
  height: 18px;
}

/* --- Money formatting --- */
.money {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.money-positive { color: var(--color-success); }
.money-negative { color: var(--color-danger); }

/* --- Existing Blazor form validation --- */
.valid.modified:not([type=checkbox]) {
  outline: 1px solid #26b050;
}

.invalid {
  outline: 1px solid #e50000;
}

.validation-message {
  color: #e50000;
  font-size: var(--text-sm);
}

/* --- Blazor error boundary --- */
.blazor-error-boundary {
  background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
  padding: 1rem 1rem 1rem 3.7rem;
  color: white;
}

.blazor-error-boundary::after {
  content: "An error has occurred."
}

.darker-border-checkbox.form-check-input {
  border-color: #929292;
}

/* --- Modal --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease-out;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  animation: slideUp 0.15s ease-out;
}

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

.modal-header h3 {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Page Header with Action --- */
.page-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.page-header-row .page-header {
  margin-bottom: 0;
}

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

/* --- Auth Layout --- */
.auth-layout {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-bg) 50%, var(--color-primary-100) 100%);
  padding: var(--space-4);
  z-index: 100;
}

.auth-layout-inner {
  width: 100%;
  display: flex;
  justify-content: center;
}

.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08), 0 8px 20px rgba(0, 0, 0, 0.04);
  padding: var(--space-10) var(--space-8) var(--space-8);
  width: 100%;
  max-width: 420px;
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--space-5);
}

.auth-logo-icon {
  width: 64px;
  height: 64px;
}

.auth-card h1 {
  text-align: center;
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.auth-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin: 0 0 var(--space-8);
}

.auth-card p {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.auth-alert {
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}

.auth-field {
  margin-bottom: var(--space-5);
}

.auth-field input {
  width: 100%;
  min-height: 42px;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
}

.auth-field label {
  margin-bottom: var(--space-1);
  font-weight: 500;
}

.auth-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.auth-remember {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: 400;
}

.auth-remember input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.auth-submit {
  width: 100%;
  min-height: 44px;
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* --- User info in header --- */
.user-info {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-right: var(--space-2);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .form-row { flex-direction: column; }
  .quick-actions { flex-direction: column; }
  select { min-width: auto; width: 100%; }
  .modal { width: 95%; max-width: none; }
}