/* ── News System ── */
.news-page {
  max-width: 900px;
  margin: 0 auto;
}

.news-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0;
}

.news-tab {
  padding: 0.65rem 1.25rem;
  border: none;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
  border-radius: 10px 10px 0 0;
}

.news-tab:hover {
  color: var(--text-main);
  background: var(--surface-muted);
}

.news-tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  background: transparent;
}

.news-tab-content {
  display: none;
}

.news-tab-content.active {
  display: block;
}

/* ── News Form ── */
.news-form {
  background: var(--surface-color);
  border-radius: 20px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.news-form .form-group {
  margin-bottom: 1.25rem;
}

.news-form .form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.news-form .form-control {
  width: 100%;
  padding: 0.6rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.875rem;
  background: var(--surface-color);
  transition: border-color 0.15s;
}

.news-form .form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* Quill Editor */
#editor-container {
  height: 250px;
  background: var(--surface-color);
  border-radius: 0 0 10px 10px;
  font-size: 0.875rem;
}

.ql-toolbar {
  border-radius: 10px 10px 0 0;
  border: 2px solid var(--border-color);
  border-bottom: none;
}

.ql-container {
  border: 2px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 10px 10px;
}

/* Class Checkboxes */
.class-checkboxes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--surface-color);
  border-radius: 10px;
  border: 2px solid var(--border-color);
}

.class-checkboxes label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  transition: background 0.1s;
}

.class-checkboxes label:hover {
  background: var(--surface-muted);
}

.class-checkboxes input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-color);
}

/* Visibility Toggles */
.visibility-toggles {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.visibility-toggles label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  cursor: pointer;
}

.visibility-toggles input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-color);
}

/* ── Topic Management ── */
.topic-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.topic-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--surface-color);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.topic-row .topic-name {
  font-weight: 600;
  font-size: 0.875rem;
}

.topic-row .topic-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.topic-row .topic-actions {
  display: flex;
  gap: 0.5rem;
}

/* ── News Card (Post Display - shared) ── */
.news-card {
  background: var(--surface-color);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: 1rem;
  transition: box-shadow 0.15s;
}

.news-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.news-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.25rem 1.5rem 0.75rem;
  gap: 1rem;
}

.news-card-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.3;
}

.news-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0 1.5rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.news-card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.news-card-body {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-main);
}

.news-card-body .quill-content {
  max-height: 300px;
  overflow-y: auto;
}

.news-card-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--surface-muted);
}

.news-card-actions .btn-sm {
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: transparent;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.1s;
}

.news-card-actions .btn-sm:hover {
  background: var(--border-color);
}

.news-card-actions .btn-sm.danger {
  color: var(--error);
  border-color: var(--border-error);
}

.news-card-actions .btn-sm.danger:hover {
  background: var(--bg-error-soft);
}

/* ── Status Badge ── */
.news-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-status.published { background: var(--surface-success); color: var(--color-green-dark); }
.news-status.draft { background: var(--surface-warning); color: var(--color-orange); }
.news-status.pending { background: var(--surface-info); color: var(--primary-color); }
.news-status.rejected { background: var(--surface-error); color: var(--error); }

/* ── Modal tweaks ── */
.topic-modal {
  max-width: 480px;
}

/* ── Statistics ── */
.stats-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.stats-scope-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
}
.stats-scope-badge.mine   { color: var(--primary-color); border-color: var(--border-info); background: var(--surface-info); }
.stats-scope-badge.global { color: var(--color-green-darker); border-color: var(--border-success); background: var(--surface-success); }

.stats-scope-toggle {
  display: inline-flex;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.25rem;
  gap: 0.25rem;
}
.scope-btn {
  background: transparent;
  border: none;
  padding: 0.45rem 0.95rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 7px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.scope-btn:hover { color: var(--text-main); }
.scope-btn.active {
  background: var(--primary-color);
  color: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

.stats-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem;
  text-align: center;
}
.stat-card .stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-color);
  line-height: 1.2;
}
.stat-card .stat-num.warning { color: var(--color-orange); }
.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stats-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.chart-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.25rem;
}
.chart-card h4 {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}
.chart-card .chart-wrap {
  position: relative;
  height: 220px;
}
@media (max-width: 900px) {
  .stats-charts { grid-template-columns: 1fr; }
}

/* ── Moderation ── */
.mod-actions { display:flex; gap:0.5rem; }
.btn-approve { background:var(--surface-success); color:var(--color-green-dark); border:1px solid var(--border-success); }
.btn-approve:hover { background:var(--bg-green-soft); }
.btn-reject { background:var(--surface-error); color:var(--error); border:1px solid var(--border-error); }
.btn-reject:hover { background:var(--bg-error-soft); }
.mod-stats-cards { display:flex; gap:1rem; margin-bottom:1.5rem; }
.mod-stat-card { flex:1; padding:1rem; border-radius:12px; border:1px solid var(--border-color); background:var(--surface-color); text-align:center; }
.mod-stat-card .num { font-size:1.5rem; font-weight:800; }
.mod-stat-card .label { font-size:0.75rem; color:var(--text-muted); margin-top:0.25rem; }
.mod-stat-card.pending { border-top:3px solid var(--border-info); }
.mod-stat-card.approved { border-top:3px solid var(--border-success); }
.mod-stat-card.rejected { border-top:3px solid var(--border-error); }
.news-card.deleted-by-teacher { border-left: 4px solid var(--warning); }
.news-card.pending-moderation { border-left: 4px solid var(--border-info); }
.deleted-badge { display:inline-flex; align-items:center; gap:0.25rem; padding:0.2rem 0.5rem; background:var(--surface-warning); color:var(--color-orange); border-radius:6px; font-size:0.65rem; font-weight:700; }

/* ── Empty state ── */
.news-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.news-empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.news-empty-text {
  font-size: 0.875rem;
}

/* ── Filter Bar ── */
.news-filters {
  margin-bottom: 1.5rem;
}
.filter-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: flex-end;
}
.filter-row .filter-input {
  flex: 1;
  min-width: 130px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  background: var(--surface-color);
  font-family: inherit;
}
.filter-row .filter-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

@media (max-width: 768px) {
  .class-checkboxes {
    grid-template-columns: 1fr 1fr;
  }
  .news-tabs {
    overflow-x: auto;
  }
}

/* ── Premium Student Modal Design ── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  z-index: 1050;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.student-modal-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  box-shadow: var(--shadow-premium, 0 25px 50px -12px rgba(0, 0, 0, 0.15));
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95) translateY(15px);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .student-modal-card {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gradient-surface);
}

.modal-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.75rem;
  font-weight: 400;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background-color: var(--surface-muted);
  color: var(--text-main);
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  flex: 1;
}

.student-form .form-group {
  margin-bottom: 1.5rem;
}

.student-form .form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.student-form .form-control {
  width: 100%;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.875rem;
  background: var(--surface-color);
  color: var(--text-main);
  transition: all 0.25s ease;
}

.student-form .form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.12);
  background: var(--surface-color);
}

.student-form textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

/* ── Interactive Class Checkboxes as tags ── */
.pill-checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.pill-checkbox-label {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  position: relative;
}

.pill-checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pill-checkbox-label span {
  padding: 0.4rem 0.85rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--surface-color);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.pill-checkbox-label:hover span {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.03);
}

.pill-checkbox-label input[type="checkbox"]:checked + span {
  border-color: var(--primary-color);
  color: #ffffff;
  background: var(--primary-gradient);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

/* ── Warning & Moderation Banner ── */
.moderation-banner {
  display: flex;
  gap: 0.75rem;
  background-color: rgba(99, 102, 241, 0.06);
  border: 1px dashed rgba(99, 102, 241, 0.25);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1.5rem;
  align-items: flex-start;
}

.moderation-banner-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.moderation-banner-content {
  flex: 1;
}

.moderation-banner-text {
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--primary-hover);
  font-weight: 500;
}

/* ── Modal Footer ── */
.modal-footer {
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background-color: var(--surface-muted);
}

.btn-muted-outline {
  background: transparent;
  color: var(--text-muted);
  border: 2px solid var(--border-color);
  padding: 0.5rem 1.5rem;
  border-radius: 10px;
  font-weight: 700;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-muted-outline:hover {
  background: var(--border-color);
  color: var(--text-main);
  transform: translateY(-1px);
}

[data-theme="dark"] .student-modal-card {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .pill-checkbox-label span {
  background-color: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text-muted);
}

[data-theme="dark"] .pill-checkbox-label:hover span {
  border-color: var(--primary-color);
  color: var(--text-main);
  background-color: var(--bg-primary-soft);
}

[data-theme="dark"] .pill-checkbox-label input[type="checkbox"]:checked + span {
  color: #ffffff;
  background: var(--primary-gradient);
}

/* ── Pagination ── */
.news-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.news-page-info {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.news-page-buttons {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  align-items: center;
}

.page-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 8px;
  border: 2px solid var(--border-color);
  background: var(--surface-color);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.1s;
  min-width: 36px;
  text-align: center;
}

.page-btn:hover:not(:disabled):not([style*="background:var"]) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

[data-theme="dark"] .page-btn {
  background: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-main);
}

/* Quill editor dark mode */
[data-theme="dark"] .ql-toolbar {
  background: var(--surface-muted);
  border-color: var(--input-border);
}
[data-theme="dark"] .ql-container {
  border-color: var(--input-border);
}
[data-theme="dark"] .ql-editor {
  color: var(--text-main);
  background: var(--input-bg);
}
[data-theme="dark"] .ql-editor.ql-blank::before {
  color: var(--input-placeholder);
}
[data-theme="dark"] .ql-toolbar button .ql-stroke {
  stroke: var(--text-muted);
}
[data-theme="dark"] .ql-toolbar button .ql-fill {
  fill: var(--text-muted);
}
[data-theme="dark"] .ql-toolbar button:hover .ql-stroke {
  stroke: var(--primary-color);
}
[data-theme="dark"] .ql-toolbar button:hover .ql-fill {
  fill: var(--primary-color);
}