/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
}

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

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

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg);
  border-color: var(--color-border-hover);
}

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

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

.btn-sm {
  padding: 5px 10px;
  font-size: var(--font-size-xs);
  gap: 4px;
}

.btn-lg {
  padding: 10px 20px;
  font-size: var(--font-size-base);
}

.btn-icon {
  padding: 6px;
  border-radius: var(--radius-md);
}

/* ── Form Elements ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

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

.form-label .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control.error {
  border-color: var(--color-danger);
}

.form-control.error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.form-full {
  grid-column: 1 / -1;
}

/* Input with addon */
.input-group {
  display: flex;
}

.input-addon {
  padding: 8px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.input-addon-left {
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-addon-right {
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group .form-control:not(:first-child) {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group .form-control:not(:last-child) {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

/* Radio toggle */
.radio-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.radio-group input[type="radio"] {
  display: none;
}

.radio-group label {
  padding: 7px 14px;
  font-size: var(--font-size-sm);
  cursor: pointer;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border-right: 1px solid var(--color-border);
  transition: background 0.15s, color 0.15s;
  user-select: none;
}

.radio-group label:last-of-type {
  border-right: none;
}

.radio-group input[type="radio"]:checked + label {
  background: var(--color-primary);
  color: #fff;
}

/* ── Table ── */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.data-table th {
  background: var(--color-bg);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
}

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

.data-table th .sort-icon {
  margin-left: 4px;
  opacity: 0.4;
}

.data-table th.sort-asc .sort-icon,
.data-table th.sort-desc .sort-icon {
  opacity: 1;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

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

.data-table tbody tr:hover td {
  background: #f8fafc;
}

.data-table .totals-row td {
  background: var(--color-bg);
  font-weight: 700;
  border-top: 2px solid var(--color-border);
  color: var(--color-text);
}

.table-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-muted);
}

.table-empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.table-empty p {
  font-size: var(--font-size-sm);
  margin-bottom: 16px;
}

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.5;
}

.badge-teacher {
  background: var(--color-primary-light);
  color: #1d4ed8;
}

.badge-admin {
  background: var(--color-info-light);
  color: #0e7490;
}

/* ── Announcement audience radio chips ── */
.ann-aud-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
  background: var(--color-surface);
  font-size: 0.85rem;
  color: var(--color-text);
  transition: border-color 0.15s, background 0.15s;
}
.ann-aud-opt input[type="radio"] {
  margin: 0;
  accent-color: var(--color-primary);
}
.ann-aud-opt:has(input[type="radio"]:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}
.ann-aud-opt:hover { border-color: var(--color-border-hover); }

/* ── Stat Cards ── */
.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.stat-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-card-icon.blue { background: var(--color-primary-light); }
.stat-card-icon.green { background: var(--color-success-light); }
.stat-card-icon.orange { background: var(--color-warning-light); }
.stat-card-icon.cyan { background: var(--color-info-light); }

.stat-card-body {
  flex: 1;
  min-width: 0;
}

.stat-card-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  word-break: break-word;
}

.stat-card-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: translateY(-12px) scale(0.98);
  transition: transform 0.2s;
}

.modal-overlay.active .modal {
  transform: none;
}

.modal-header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
}

.modal-close {
  color: var(--color-text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  font-size: 18px;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}

.modal-close:hover {
  color: var(--color-text);
  background: var(--color-bg);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

/* ── Toast ── */
#toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  max-width: 320px;
  pointer-events: auto;
  opacity: 0;
  transform: translateX(16px);
  transition: opacity 0.25s, transform 0.25s;
}

.toast.toast-visible {
  opacity: 1;
  transform: none;
}

.toast-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.toast-success .toast-icon { background: var(--color-success-light); color: var(--color-success); }
.toast-error .toast-icon   { background: var(--color-danger-light);  color: var(--color-danger); }
.toast-info .toast-icon    { background: var(--color-info-light);    color: var(--color-info); }
.toast-warning .toast-icon { background: var(--color-warning-light); color: var(--color-warning); }

/* ── Search Bar ── */
.search-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  max-width: 320px;
}

.search-input-wrap .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 14px;
  pointer-events: none;
}

.search-input-wrap input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.search-input-wrap input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ── Settings Sections ── */
.settings-section {
  margin-bottom: 28px;
}

.settings-section-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

/* ── Toolbar ── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-wrap: wrap;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Number formatting ── */
.num-lbp {
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
}

.num-usd {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  display: block;
}

/* ── Action buttons in table ── */
.action-btns {
  display: flex;
  gap: 4px;
}

/* ── Filter select ── */
.filter-select {
  padding: 7px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  outline: none;
}

.filter-select:focus {
  border-color: var(--color-primary);
}

/* ── Alert box ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}

.alert-warning {
  background: var(--color-warning-light);
  border: 1px solid #fcd34d;
  color: #92400e;
}

.alert-info {
  background: var(--color-info-light);
  border: 1px solid #67e8f9;
  color: #164e63;
}

/* Dashboard type breakdown */
.breakdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.breakdown-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.breakdown-card-type {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.breakdown-card-type.teacher { color: #1d4ed8; }
.breakdown-card-type.admin { color: #0e7490; }

.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  padding: 4px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.breakdown-row:last-child { border-bottom: none; }
.breakdown-row strong { color: var(--color-text); }

/* Import file input hidden */
.file-input-hidden {
  display: none;
}