/* ========================================
   MiniCodex Admin — Reusable Components
   ======================================== */

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
  font-family: var(--font-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(20, 207, 188, .25);
}

.btn-secondary {
  background: var(--purple-soft);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--purple);
}

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

.btn-danger {
  background: rgba(255, 107, 107, .12);
  color: var(--danger);
  border-color: rgba(255, 107, 107, .2);
}
.btn-danger:hover {
  background: rgba(255, 107, 107, .2);
}

.btn-sm { padding: 5px 10px; font-size: var(--fs-xs); }
.btn-icon { padding: 6px; min-width: 32px; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: var(--fs-md);
  font-weight: 700;
}

/* ---- Stat cards ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
}

.stat-value {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-card[data-accent="teal"]   { border-top: 3px solid var(--accent); }
.stat-card[data-accent="purple"] { border-top: 3px solid var(--purple); }
.stat-card[data-accent="yellow"] { border-top: 3px solid var(--yellow); }
.stat-card[data-accent="danger"] { border-top: 3px solid var(--danger); }
.stat-card[data-accent="info"]   { border-top: 3px solid var(--info); }

/* ---- Tables ---- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

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

.data-table th,
.data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th {
  background: var(--bg-card-alt);
  font-weight: 700;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
  z-index: 2;
  cursor: default;
  user-select: none;
}

.data-table th.sortable { cursor: pointer; }
.data-table th.sortable:hover { color: var(--accent); }
.data-table th .sort-icon { margin-left: 4px; opacity: .4; }
.data-table th.sort-asc .sort-icon,
.data-table th.sort-desc .sort-icon { opacity: 1; color: var(--accent); }

.data-table tbody tr {
  transition: background var(--dur) var(--ease);
}
.data-table tbody tr:hover {
  background: var(--bg-hover);
}

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

.table-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.table-search {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
  padding: 8px 14px 8px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236e6896' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.47 6.47 0 0016 9.5 6.5 6.5 0 109.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") 12px center no-repeat;
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-family: var(--font-body);
}
.table-search::placeholder { color: var(--text-muted); }
.table-search:focus { border-color: var(--accent); }

.table-filter {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-family: var(--font-body);
}

.table-empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 16px;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}
.page-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.page-btn.active { background: var(--accent); color: var(--text-inverse); border-color: var(--accent); }
.page-btn:disabled { opacity: .3; cursor: not-allowed; }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .02em;
}

.badge-teal    { background: var(--accent-soft); color: var(--accent); }
.badge-purple  { background: var(--purple-soft); color: #a89be8; }
.badge-yellow  { background: var(--yellow-soft); color: #c9b800; }
.badge-danger  { background: rgba(255,107,107,.12); color: var(--danger); }
.badge-info    { background: rgba(107,163,255,.12); color: var(--info); }
.badge-success { background: rgba(20,207,188,.12); color: var(--success); }

.badge-level-1 { background: rgba(20,207,188,.12); color: #14CFBC; }
.badge-level-2 { background: rgba(92,81,162,.18);  color: #a89be8; }
.badge-level-3 { background: rgba(255,232,48,.12);  color: #c9b800; }
.badge-level-4 { background: rgba(255,107,107,.12); color: #ff8a8a; }

/* ---- Modal ---- */
#modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, .6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: modal-in .2s var(--ease);
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--fs-md);
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 20px;
  line-height: 1;
  transition: color var(--dur) var(--ease);
}
.modal-close:hover { color: var(--text-primary); }

.modal-body {
  padding: 22px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input,
.form-select {
  width: 100%;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-family: var(--font-body);
  transition: border-color var(--dur) var(--ease);
}

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

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--danger);
  margin-top: 4px;
}

/* ---- Toast ---- */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toast-in .25s var(--ease);
  max-width: 360px;
}
.toast.toast-success { background: #0a2e2a; color: var(--success); border: 1px solid rgba(20,207,188,.25); }
.toast.toast-error   { background: #2e0a0a; color: var(--danger);  border: 1px solid rgba(255,107,107,.25); }
.toast.toast-info    { background: #0a1a2e; color: var(--info);    border: 1px solid rgba(107,163,255,.25); }

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

/* ---- Loading spinner ---- */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

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

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  color: var(--text-muted);
}

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab-btn {
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---- Confirm dialog ---- */
.confirm-text {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

/* ---- Action row in tables ---- */
.action-cell {
  display: flex;
  gap: 4px;
}

/* ---- Empty state ---- */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}
.empty-state svg { margin: 0 auto 16px; opacity: .3; }
.empty-state p { margin-top: 8px; }

/* ---- Progress steps (for student progression) ---- */
.progress-steps {
  display: flex;
  align-items: center;
  gap: 0;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 0;
}

.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  font-weight: 700;
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  position: relative;
}

.step-dot.completed {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-inverse);
}

.step-dot.current {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.step-line {
  width: 32px;
  height: 2px;
  background: var(--border);
}

.step-line.completed {
  background: var(--accent);
}

.step-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
  max-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- Login screen ---- */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
}

.login-card h1 {
  font-size: var(--fs-xl);
  font-weight: 800;
  margin-bottom: 4px;
  color: var(--accent);
}

.login-card p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
  margin-bottom: 24px;
}

.login-error {
  background: rgba(255,107,107,.1);
  border: 1px solid rgba(255,107,107,.2);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  margin-bottom: 16px;
}

/* ---- Section header ---- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.section-title {
  font-size: var(--fs-xl);
  font-weight: 700;
}

/* ---- Schedule Grid ---- */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}
@media (max-width: 1024px) {
  .schedule-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .schedule-grid { grid-template-columns: 1fr; }
}
.schedule-day {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.schedule-day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--bg-card-alt);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
}
.schedule-empty {
  padding: 16px 10px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--fs-xs);
}
.schedule-slot {
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color var(--dur) var(--ease);
}
.schedule-slot:hover {
  border-color: var(--accent);
}
.schedule-time {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--accent);
}
.schedule-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.schedule-meta {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.schedule-prof {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

/* ---- Theme Toggle ---- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}
/* Dark mode (default): show sun, hide moon */
.theme-toggle .icon-sun { display: block; stroke: #FFE830; }
.theme-toggle .icon-moon { display: none; }
/* Light mode: show moon, hide sun */
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ---- Reports ---- */
.reports-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.report-card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 20px; box-shadow: var(--shadow-sm);
}
.report-card--wide { grid-column: 1 / -1; }
.report-card h3 { margin: 0 0 14px; font-size: var(--fs-base); font-weight: 700; color: var(--text-primary); }
.report-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.report-stat__label { display: block; font-size: var(--fs-xs); color: var(--text-secondary); margin-bottom: 2px; }
.report-stat__value { font-size: 1.25rem; color: var(--text-primary); }
.text-success { color: #16a34a !important; }
.text-warning { color: #d97706 !important; }
.text-danger { color: #dc2626 !important; }

.report-bar-chart { display: flex; flex-direction: column; gap: 6px; }
.bar-row { display: flex; align-items: center; gap: 10px; }
.bar-label { width: 70px; font-size: var(--fs-xs); color: var(--text-secondary); flex-shrink: 0; }
.bar-track { flex: 1; height: 18px; background: var(--bg-hover); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 4px; transition: width .4s ease; }
.bar-value { width: 30px; text-align: right; font-size: var(--fs-xs); font-weight: 600; color: var(--text-primary); }

/* ---- Export GDPR ---- */
.info-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 20px; margin-bottom: 20px; }
.info-card p { margin: 4px 0; font-size: var(--fs-sm); color: var(--text-secondary); }
.export-section h3 { margin: 0 0 6px; font-size: var(--fs-base); font-weight: 700; }
.export-section > p { margin: 0 0 14px; font-size: var(--fs-sm); color: var(--text-secondary); }
.export-form { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.export-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.export-result { margin-top: 14px; padding: 12px; background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.export-result p { margin: 0; font-size: var(--fs-sm); }

/* ==========================================================================
   Lesson library (Lecții) — course picker, grid, bulk upload
   ========================================================================== */
.lessons-wrap { display: flex; flex-direction: column; gap: 18px; }

.lessons-picker { display: flex; flex-direction: column; gap: 14px; }
.lessons-level-label {
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-muted); margin-bottom: 6px;
}
.lessons-course-row { display: flex; flex-wrap: wrap; gap: 8px; }
.lessons-course-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  padding: 10px 14px; min-width: 130px; cursor: pointer;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.lessons-course-btn:hover { border-color: var(--accent); }
.lessons-course-btn.is-active { border-color: var(--accent); background: var(--bg-selected); }
.lessons-course-name { font-weight: 700; color: var(--text-primary); }
.lessons-course-count { font-size: var(--fs-xs); color: var(--text-muted); }

.lessons-detail { display: flex; flex-direction: column; gap: 14px; }
.lessons-detail-head { display: flex; align-items: baseline; gap: 10px; }
.lessons-detail-head h3 { margin: 0; }
.lessons-detail-sub { color: var(--text-muted); font-size: var(--fs-sm); }

.lessons-dropzone {
  border: 2px dashed var(--border-hover); border-radius: var(--radius-lg);
  padding: 22px; text-align: center; cursor: pointer; color: var(--text-secondary);
  background: var(--bg-card-alt); transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.lessons-dropzone:hover, .lessons-dropzone.is-over { border-color: var(--accent); background: var(--bg-selected); }
.lessons-dropzone-inner strong { color: var(--text-primary); }

.lessons-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px;
}
.lesson-slot {
  display: flex; flex-direction: column; gap: 8px; padding: 12px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md);
}
.lesson-slot.is-filled { border-color: var(--success); }
.lesson-slot-num { font-weight: 700; font-size: var(--fs-sm); color: var(--text-primary); }
.lesson-slot-title {
  width: 100%; padding: 7px 9px; font-size: var(--fs-sm);
  background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary);
}
.lesson-slot-meta { display: flex; gap: 6px; }
.lesson-slot-badge { font-size: var(--fs-xs); font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.lesson-slot-badge.ok { background: var(--success); color: var(--text-inverse); }
.lesson-slot-badge.empty { background: var(--bg-hover); color: var(--text-muted); }
.lesson-slot-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.bulk-review { display: flex; flex-direction: column; gap: 6px; max-height: 320px; overflow-y: auto; margin: 10px 0; }
.bulk-review-row { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
.bulk-review-file { font-size: var(--fs-sm); color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bulk-review-sel { padding: 5px 8px; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-primary); }
.bulk-progress { margin-top: 10px; font-size: var(--fs-sm); color: var(--text-secondary); min-height: 18px; }

.bulk-review-file { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.bulk-review-fname { font-size: var(--fs-sm); color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bulk-review-title { font-size: var(--fs-xs); color: var(--text-muted); }

.bulk-bar { height: 8px; background: var(--bg-hover); border-radius: 999px; overflow: hidden; margin: 12px 0 4px; }
.bulk-bar-fill { height: 100%; width: 0; background: var(--accent); transition: width .25s ease; }
.btn.is-loading, .btn:disabled { opacity: .55; cursor: default; pointer-events: none; }

/* N4 language access checkboxes (professor form) */
.lvl4-checks{ display:flex; gap:16px; flex-wrap:wrap; margin-top:4px; }
.lvl4-check{ display:inline-flex; align-items:center; gap:7px; cursor:pointer; font-weight:600; color:var(--text-primary); }
.lvl4-check input{ width:16px; height:16px; cursor:pointer; }