/* PANEL module: admin / instructor / organization dashboards + instructor student pages */

/* ---------- Tone tokens (used by KPI cards, mini cards and analytic tiles) ---------- */
.panel-tone-primary { --panel-tone: var(--primary); --panel-tone-soft: var(--primary-light); }
.panel-tone-success { --panel-tone: var(--success); --panel-tone-soft: #d1fae5; }
.panel-tone-warning { --panel-tone: var(--warning); --panel-tone-soft: #fef3c7; }
.panel-tone-danger  { --panel-tone: var(--danger);  --panel-tone-soft: #fee2e2; }

/* ---------- KPI grid ---------- */
.panel-kpi-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin-bottom: 24px; }
.panel-kpi-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel-kpi { padding: 20px 22px 16px; margin-bottom: 0; display: flex; flex-direction: column; gap: 10px; position: relative; overflow: hidden; transition: var(--transition); }
.panel-kpi::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--panel-tone, var(--primary)); opacity: 0.85; }
.panel-kpi:hover { transform: translateY(-3px); box-shadow: var(--hover-shadow); }
.panel-kpi-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.panel-kpi-head .stat-value { font-size: 1.7rem; }
.panel-kpi-icon { width: 46px; height: 46px; flex: 0 0 46px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 1.25rem; background: var(--panel-tone-soft, var(--primary-light)); color: var(--panel-tone, var(--primary)); }
.panel-kpi-chart { position: relative; height: 72px; margin: 4px -6px 0; }
.panel-kpi-chart canvas, .panel-mini-chart canvas, .panel-chart-lg canvas, .panel-chart-md canvas, .org-chart-box canvas { width: 100% !important; height: 100% !important; }
.panel-kpi-foot { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; padding-top: 8px; border-top: 1px dashed var(--border-color); }
.panel-kpi-change { font-weight: 700; color: var(--panel-tone, var(--success)); font-size: 0.95rem; }

/* Instructor dashboard stat cards reuse .stat-card with a tone */
.stat-card.panel-tone-primary, .stat-card.panel-tone-success, .stat-card.panel-tone-warning, .stat-card.panel-tone-danger { gap: 12px; }
.stat-card[class*="panel-tone-"]::before { background: var(--panel-tone); opacity: 0.85; }
.stat-card .stat-value { word-break: break-word; }

/* ---------- Main two-column area (earning report + side stack) ---------- */
.panel-grid-main { display: grid; grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); gap: 24px; align-items: start; margin-bottom: 24px; }
.panel-grid-main > .card { margin-bottom: 0; }
.panel-side-stack { display: flex; flex-direction: column; gap: 24px; }
.panel-side-stack > .card { margin-bottom: 0; }
.panel-mini-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.panel-mini { margin-bottom: 0; padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 6px; position: relative; transition: var(--transition); }
.panel-mini:hover { transform: translateY(-3px); box-shadow: var(--hover-shadow); }
.panel-mini .panel-kpi-icon { width: 40px; height: 40px; flex-basis: 40px; font-size: 1.05rem; }
.panel-mini .stat-value { font-size: 1.5rem; margin-top: 0; }
.panel-mini .stat-label { font-size: 0.72rem; }
.panel-mini-chart { position: relative; height: 56px; margin: 2px -4px 6px; }

/* ---------- Earning report analytics tiles ---------- */
.panel-analytics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.panel-analytic { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; background: var(--bg-main); border: 1px solid var(--border-color); min-width: 0; }
.panel-analytic > i { width: 40px; height: 40px; flex: 0 0 40px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; font-size: 1rem; background: var(--panel-tone-soft, var(--primary-light)); color: var(--panel-tone, var(--primary)); }
.panel-analytic p { margin: 0; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); }
.panel-analytic h4 { margin: 2px 0 0; font-size: 1.15rem; font-weight: 800; letter-spacing: -0.01em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.panel-analytic > div { min-width: 0; }

/* ---------- Chart boxes ---------- */
.panel-chart-lg { position: relative; height: 320px; }
.panel-chart-md, .org-chart-box { position: relative; height: 260px; }

/* ---------- Rows / tables ---------- */
.panel-row { margin-bottom: 24px; }
.panel-row > .card { margin-bottom: 0; }
.panel-info-table { margin: -4px 0 0; }
.panel-info-table td { border-bottom: 1px dashed var(--border-color); }
.panel-info-table tr:last-child td { border-bottom: none; }
.panel-info-table td:first-child { color: var(--text-muted); font-weight: 500; }
.panel-info-table td:last-child { text-align: right; font-weight: 700; }
.panel-scroll-table, .org-scroll-table { max-height: 340px; overflow-y: auto; }
.panel-scroll-table thead th, .org-scroll-table thead th { position: sticky; top: 0; background: var(--bg-surface); z-index: 1; }

/* Period selectors inside card headers */
.panel-period, .org-period-select { width: auto; min-width: 140px; padding: 7px 32px 7px 12px; font-size: 0.82rem; font-weight: 600; border-radius: 10px; margin-left: auto; flex: 0 0 auto; }
.panel-period:disabled, .org-period-select:disabled { opacity: 0.6; cursor: progress; }
.card-header .panel-period, .card-header .org-period-select { max-width: 50%; }
#orgDashboardPage .form-control-sm { padding: 7px 32px 7px 12px; font-size: 0.82rem; }

/* Course link cell (best selling tables) */
.panel-course-link { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; min-width: 0; }
.panel-course-link img { width: 46px; height: 30px; border-radius: 6px; object-fit: cover; background: #f1f5f9; flex: 0 0 46px; }
.panel-course-link span { font-weight: 600; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.3; }
.panel-course-link:hover span { color: var(--primary); }

/* User cell (avatar + name + subtitle) */
.panel-user-cell { color: inherit; text-decoration: none; }
.panel-user-cell img { width: 38px; height: 38px; border-radius: 50%; }
.panel-user-cell .subtitle { word-break: break-all; }
a.panel-user-cell:hover .title { color: var(--primary); }

/* Rating cell */
.panel-rating { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; white-space: nowrap; }
.panel-rating > i { color: var(--warning); }
.panel-rating-stars { color: var(--warning); font-size: 0.75rem; letter-spacing: 1px; opacity: 0.85; }

/* Row action buttons */
.panel-actions { display: inline-flex; gap: 6px; justify-content: flex-end; }
.panel-actions .btn { padding: 6px 9px; line-height: 1; }

.panel-capitalize { text-transform: capitalize; }
.panel-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.82rem; background: var(--bg-main); padding: 2px 6px; border-radius: 6px; }
.panel-clamp { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- Organization dashboard icons ---------- */
.stat-icon.org-icon-success { background: #d1fae5; color: var(--success); }
.stat-icon.org-icon-warning { background: #fef3c7; color: var(--warning); }
.stat-icon.org-icon-danger { background: #fee2e2; color: var(--danger); }

/* ---------- Student form ---------- */
.panel-tel-input { display: grid; grid-template-columns: minmax(120px, 38%) minmax(0, 1fr); gap: 8px; }
.panel-tel-input select { padding-right: 28px; }

/* ---------- Student profile ---------- */
.panel-profile-layout { grid-template-columns: 340px minmax(0, 1fr); }
.panel-profile-card { text-align: center; }
.panel-profile-card .text-left { text-align: left; }
.panel-profile-card .mt-4 { margin-top: 4px; }
.panel-profile-card h3 { font-size: 1.15rem; margin-bottom: 4px; }
.panel-profile-avatar { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; background: #f1f5f9; border: 4px solid var(--bg-main); box-shadow: var(--card-shadow); }
.panel-profile-card .list-group-item { font-size: 0.87rem; }
.panel-profile-card .list-group-item > span:last-child { text-align: right; }
.panel-break { word-break: break-all; }

/* Course cards inside the profile tabs */
.panel-course-card .course-thumb { height: 150px; padding: 0; overflow: hidden; }
.panel-course-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.panel-course-card .course-title { font-size: 1rem; }
.panel-course-stats { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 0.78rem; color: var(--text-muted); }
.panel-course-stats i { color: var(--primary); margin-right: 3px; }
.panel-progress-label { font-size: 0.75rem; color: var(--text-muted); margin: 6px 0 8px; }
.panel-course-card .course-meta { padding-top: 12px; }
.panel-course-card .course-price { font-size: 1.05rem; }

/* Certificate grid */
.panel-certificate-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 18px; }
.panel-certificate-card { border: 1px solid var(--border-color); border-radius: var(--border-radius); padding: 22px 18px; text-align: center; background: linear-gradient(180deg, #fffbeb 0%, var(--bg-surface) 65%); display: flex; flex-direction: column; align-items: center; transition: var(--transition); }
.panel-certificate-card:hover { transform: translateY(-3px); box-shadow: var(--hover-shadow); }
.panel-certificate-card h4 { margin: 0 0 4px; font-size: 1rem; }
.panel-certificate-card p { margin: 0 0 10px; }
.panel-cert-icon { width: 56px; height: 56px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 1.6rem; color: #d97706; background: #fef3c7; margin-bottom: 12px; }
.panel-cert-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; }

/* Empty / error states inside tables and grids */
.panel-profile-layout .tab-pane .empty-state, #panelAdminDashboard .table .empty-state, #panelInstructorDashboard .table .empty-state, #orgDashboardPage .table .empty-state { padding: 28px 12px; }

/* ---------- Responsive ---------- */
@media (max-width: 1300px) {
  .panel-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel-kpi-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 1100px) {
  .panel-grid-main { grid-template-columns: 1fr; }
  .panel-kpi-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel-profile-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .panel-analytics { grid-template-columns: 1fr; }
  .panel-chart-lg { height: 260px; }
  .panel-chart-md, .org-chart-box { height: 220px; }
  .card-header .panel-period, .card-header .org-period-select { max-width: 100%; }
}
@media (max-width: 600px) {
  .panel-kpi-grid, .panel-kpi-grid-3, .panel-mini-grid { grid-template-columns: 1fr; }
  .card-header:has(.panel-period), .card-header:has(.org-period-select) { flex-wrap: wrap; gap: 10px; }
  .panel-period, .org-period-select { width: 100%; margin-left: 0; }
  .panel-tel-input { grid-template-columns: 1fr; }
  .panel-certificate-grid { grid-template-columns: 1fr; }
  .panel-profile-card .list-group-item { flex-direction: column; align-items: flex-start; gap: 2px; }
  .panel-profile-card .list-group-item > span:last-child { text-align: left; }
}