/* ============================================================================
 * perf-brand.css — Performance & Lesson Observation design system
 * ----------------------------------------------------------------------------
 * Self-contained, namespaced (pf-*) port of the approved Prototype v4 component
 * system. Defined as EXPLICIT CSS (not Tailwind utilities) because the app ships
 * a PURGED tailwind.css bundle that lacks grid-cols-5, arbitrary values
 * (text-[28px]) and most of the prototype's classes. Everything the perf UI
 * needs is here, so the screens render identically regardless of the bundle.
 *
 * Brand-aware: primary/accent come from the app's --brand-primary / --brand-accent
 * (brand-theme.css), so the module themes correctly for CampusTrack (navy+cyan)
 * AND AiyaHR (teal-green) white-labels — instead of the prototype's hardcoded blue.
 *
 * Used by public/js/perf-module.js across all screens (ESS / MSS / Studio /
 * Masters / Analytics). Loaded in index.html before perf-module.js.
 * ========================================================================== */

:root {
  --pf-primary: var(--brand-primary, #274186);
  --pf-accent:  var(--brand-accent, #00AEEF);
  --pf-ink: #0f172a;
  --pf-sub: #64748b;
  --pf-mute: #94a3b8;
  --pf-line: #eef2f7;
  --pf-line2: #e2e8f0;
  --pf-bg: #f8fafc;
}

/* ---- typography ---------------------------------------------------------- */
.pf-h1 { font-size: 22px; font-weight: 800; color: var(--pf-ink); line-height: 1.1; }
.pf-sub { font-size: 13px; color: var(--pf-sub); margin-top: 2px; }
.pf-num { font-variant-numeric: tabular-nums; font-feature-settings: 'tnum'; }
.pf-eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--pf-mute); font-weight: 600; }

/* ---- page header band ---------------------------------------------------- */
.pf-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.pf-head .pf-chip { flex-shrink: 0; }
.pf-head-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }

/* ---- card ---------------------------------------------------------------- */
.pf-card {
  background: #fff; border: 1px solid var(--pf-line); border-radius: 16px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.pf-card-pad { padding: 18px 20px; }
.pf-card-head {
  padding: 13px 20px; border-bottom: 1px solid var(--pf-line);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.pf-card-head .t { font-size: 13.5px; font-weight: 600; color: var(--pf-ink); }
.pf-card-foot { padding: 12px 16px; border-top: 1px solid var(--pf-line); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ---- chip (icon tile) ---------------------------------------------------- */
.pf-chip {
  width: 46px; height: 46px; border-radius: 14px; display: flex;
  align-items: center; justify-content: center; font-size: 20px; line-height: 1;
}
.pf-chip-brand { background: color-mix(in srgb, var(--pf-accent) 12%, #fff); color: var(--pf-accent); }
.pf-chip-amber { background: #fffbeb; color: #d97706; }
.pf-chip-green { background: #ecfdf5; color: #059669; }
.pf-chip-purple { background: #f5f3ff; color: #7c3aed; }
.pf-chip-red { background: #fef2f2; color: #dc2626; }
.pf-chip-slate { background: #f1f5f9; color: #64748b; }

/* ---- KPI cards ----------------------------------------------------------- */
.pf-kpis { display: grid; gap: 12px; margin-bottom: 16px; }
.pf-kpis-2 { grid-template-columns: repeat(2, 1fr); }
.pf-kpis-3 { grid-template-columns: repeat(2, 1fr); }
.pf-kpis-4 { grid-template-columns: repeat(2, 1fr); }
.pf-kpis-5 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) {
  .pf-kpis-3 { grid-template-columns: repeat(3, 1fr); }
  .pf-kpis-4 { grid-template-columns: repeat(4, 1fr); }
  .pf-kpis-5 { grid-template-columns: repeat(5, 1fr); }
}
.pf-kpi {
  background: #fff; border: 1px solid var(--pf-line); border-radius: 16px; padding: 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.pf-kpi .v { font-size: 26px; font-weight: 800; line-height: 1; }
.pf-kpi .l { font-size: 11px; text-transform: uppercase; letter-spacing: .03em; color: var(--pf-mute); font-weight: 600; margin-top: 6px; }
.pf-kpi .s { font-size: 11px; color: var(--pf-mute); margin-top: 1px; }
.pf-kpi .pf-chip { width: 38px; height: 38px; border-radius: 12px; font-size: 16px; }
.pf-v-brand { color: var(--pf-primary); }
.pf-v-accent { color: var(--pf-accent); }
.pf-v-amber { color: #d97706; }
.pf-v-green { color: #16a34a; }
.pf-v-purple { color: #7c3aed; }
.pf-v-red { color: #dc2626; }
.pf-v-ink { color: var(--pf-ink); }

/* ---- pills (status + band) ----------------------------------------------- */
.pf-pill { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; font-weight: 600; font-size: 12px; padding: 2px 10px; }
.pf-pill-bd { border: 1px solid transparent; }
.pf-st-pending  { background: #fffbeb; color: #b45309; }
.pf-st-approved { background: #ecfdf5; color: #047857; }
.pf-st-progress { background: #eff6ff; color: #1d4ed8; }
.pf-st-cancelled{ background: #f1f5f9; color: #64748b; }
.pf-st-rejected { background: #fef2f2; color: #b91c1c; }
.pf-st-draft    { background: #f1f5f9; color: #475569; }
/* observation/appraisal bands (best → worst) */
.pf-b-out { background: #ecfdf5; color: #047857; border-color: #a7f3d0; }
.pf-b-vg  { background: #f0fdf4; color: #16a34a; border-color: #bbf7d0; }
.pf-b-gd  { background: #fefce8; color: #a16207; border-color: #fde68a; }
.pf-b-ok  { background: #fff7ed; color: #c2410c; border-color: #fed7aa; }
.pf-b-na  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.pf-b-neutral { background: #f1f5f9; color: #475569; border-color: #e2e8f0; }

/* ---- copilot panel ------------------------------------------------------- */
.pf-copilot { background: linear-gradient(135deg, #f0fdfa, #eff6ff); border: 1px solid #cbeef0; border-radius: 16px; }
.pf-copilot-h { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.pf-copilot-spark { width: 24px; height: 24px; border-radius: 8px; background: var(--pf-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; }
.pf-copilot-t { font-weight: 600; font-size: 13px; color: #0f766e; }
.pf-copilot-p { font-size: 13px; color: #475569; line-height: 1.55; }
.pf-copilot-act { width: 100%; text-align: left; font-size: 13px; background: #fff; border: 1px solid #cceef0; border-radius: 12px; padding: 9px 12px; font-weight: 500; color: var(--pf-ink); cursor: pointer; transition: .12s; }
.pf-copilot-act:hover { border-color: var(--pf-accent); background: #f0fdfa; }
.pf-copilot-act + .pf-copilot-act { margin-top: 6px; }
.pf-copilot-link { font-size: 12px; font-weight: 600; color: #0d9488; background: none; border: 0; cursor: pointer; padding: 0; margin-top: 10px; }
.pf-copilot-out .pf-ai-bubble { background: #fff; border: 1px solid #cceef0; border-radius: 12px; padding: 10px 12px; font-size: 13px; color: #334155; white-space: pre-wrap; line-height: 1.55; }
.pf-copilot-out .pf-ai-tag { font-size: 10px; color: #0d9488; margin-top: 6px; }
.pf-ai-ask { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid #cceef0; border-radius: 12px; padding: 8px 14px; }
.pf-ai-ask input { flex: 1; border: 0; outline: none; background: transparent; font-size: 14px; color: var(--pf-ink); }

/* ---- segmented control --------------------------------------------------- */
.pf-seg { background: #f1f5f9; border-radius: 11px; padding: 3px; display: inline-flex; gap: 2px; }
.pf-seg button { border: 0; background: transparent; border-radius: 8px; padding: 5px 14px; font-size: 12.5px; font-weight: 600; color: #64748b; cursor: pointer; }
.pf-seg button.on { background: #fff; color: var(--pf-ink); box-shadow: 0 1px 2px rgba(15, 23, 42, .08); }

/* ---- approval tracker ---------------------------------------------------- */
.pf-track { display: inline-flex; align-items: center; gap: 0; }
.pf-node { width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 700; flex-shrink: 0; }
.pf-node.done { background: #22c55e; color: #fff; }
.pf-node.cur  { background: #facc15; color: #fff; }
.pf-node.todo { background: #e2e8f0; color: #94a3b8; }
.pf-conn { width: 26px; height: 2px; background: #e2e8f0; }
.pf-conn.done { background: #22c55e; }
.pf-track-cap { font-size: 10px; color: var(--pf-mute); margin-top: 2px; }
.pf-track-cap.ok { color: #059669; }

/* ---- band-button grid (Conduct / Self-rating) ---------------------------- */
.pf-bandgrid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; margin-bottom: 10px; }
.pf-bandgrid.cols-5 { grid-template-columns: repeat(5, 1fr); }
.pf-bandgrid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.pf-band-btn { padding: 9px 0; border-radius: 12px; font-size: 12px; font-weight: 700; border: 1px solid var(--pf-line2); background: #fff; color: #94a3b8; cursor: pointer; transition: .12s; }
.pf-band-btn:hover { border-color: var(--pf-accent); color: var(--pf-accent); }
.pf-band-btn.on { background: linear-gradient(100deg, var(--pf-primary), var(--pf-accent)); color: #fff; border-color: transparent; }
.pf-rubric { font-size: 12px; color: #475569; font-style: italic; background: #f8fafc; border-radius: 12px; padding: 9px 12px; }
.pf-rubric b { font-style: normal; color: var(--pf-ink); }

/* ---- tables -------------------------------------------------------------- */
.pf-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.pf-table thead th { text-align: left; font-size: 11.5px; font-weight: 600; color: var(--pf-mute); background: #f8fafc; padding: 9px 16px; }
.pf-table thead th.c { text-align: center; }
.pf-table tbody td { padding: 11px 16px; border-top: 1px solid var(--pf-line); vertical-align: middle; }
.pf-table tbody td.c { text-align: center; }
.pf-table tbody tr:hover { background: #f8fafc; }
.pf-table tbody tr.total td { font-weight: 700; background: #f8fafc; border-top: 2px solid var(--pf-line2); }
.pf-table tbody tr.flag td { background: #fffbeb66; }
.pf-table .mut { color: var(--pf-mute); }
.pf-table-wrap { overflow-x: auto; }
.pf-empty { padding: 30px 16px; text-align: center; color: var(--pf-mute); font-size: 13.5px; }

/* ---- searchable combobox (single-select, primary + secondary line) ------- */
.pf-combo { position: relative; }
.pf-combo-input { width: 100%; padding-right: 30px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; }
.pf-combo-panel { position: absolute; z-index: 60; top: 100%; left: 0; right: 0; margin-top: 4px; max-height: 280px; overflow-y: auto; background: #fff; border: 1px solid var(--pf-line2); border-radius: 12px; box-shadow: 0 14px 36px -12px rgba(15, 23, 42, .28); display: none; }
.pf-combo-panel.open { display: block; }
.pf-combo-opt { padding: 9px 13px; cursor: pointer; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; border-bottom: 1px solid #f1f5f9; }
.pf-combo-opt:last-child { border-bottom: 0; }
.pf-combo-opt:hover, .pf-combo-opt.active { background: color-mix(in srgb, var(--pf-accent) 8%, #fff); }
.pf-combo-opt .main { color: var(--pf-ink); font-weight: 500; }
.pf-combo-opt .sub { color: var(--pf-mute); font-size: 12px; white-space: nowrap; }
.pf-combo-empty { padding: 11px 13px; color: var(--pf-mute); font-size: 13px; }

/* ---- toggle switch (AI Features panel) ----------------------------------- */
.pf-switch { position: relative; display: inline-block; width: 42px; height: 24px; cursor: pointer; flex-shrink: 0; }
.pf-switch input { opacity: 0; width: 0; height: 0; }
.pf-switch-sl { position: absolute; inset: 0; background: var(--pf-line2); border-radius: 999px; transition: .18s; }
.pf-switch-sl::before { content: ''; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .18s; box-shadow: 0 1px 2px rgba(0,0,0,.2); }
.pf-switch input:checked + .pf-switch-sl { background: linear-gradient(100deg, var(--pf-primary), var(--pf-accent)); }
.pf-switch input:checked + .pf-switch-sl::before { transform: translateX(18px); }

/* ---- inputs / buttons (perf-scoped) -------------------------------------- */
.pf-in { border: 1px solid var(--pf-line2); border-radius: 10px; padding: 8px 12px; font-size: 13.5px; width: 100%; color: var(--pf-ink); background: #fff; }
.pf-in:focus { outline: none; border-color: var(--pf-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--pf-accent) 18%, transparent); }
.pf-in-sm { width: 52px; text-align: center; padding: 6px 4px; border: 1px solid var(--pf-line2); border-radius: 8px; font-variant-numeric: tabular-nums; }
.pf-lbl { font-size: 11px; color: var(--pf-mute); font-weight: 600; display: block; margin-bottom: 4px; }
.pf-btn { border: 1px solid var(--pf-line2); background: #fff; color: var(--pf-ink); border-radius: 12px; font-weight: 600; font-size: 13px; padding: 8px 14px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: .12s; }
.pf-btn:hover { background: #f8fafc; }
.pf-btn-primary { background: linear-gradient(100deg, var(--pf-primary), var(--pf-accent)); color: #fff; border-color: transparent; }
.pf-btn-primary:hover { filter: brightness(1.06); background: linear-gradient(100deg, var(--pf-primary), var(--pf-accent)); }
.pf-btn-ai { background: #f0fdfa; color: #0f766e; border-color: #cceef0; }
.pf-btn-ai:hover { background: #e6fffb; }
.pf-btn-ghost { background: transparent; border-color: transparent; color: var(--pf-sub); }
.pf-btn-danger { color: #dc2626; background: transparent; border-color: transparent; }
.pf-btn-sm { padding: 6px 10px; font-size: 12px; border-radius: 10px; }
.pf-btn-block { width: 100%; justify-content: center; padding: 12px; }
.pf-link { color: var(--pf-accent); font-size: 12.5px; font-weight: 600; cursor: pointer; background: none; border: 0; padding: 0; }

/* ---- layout helpers ------------------------------------------------------ */
.pf-grid { display: grid; gap: 16px; }
.pf-cols-2 { grid-template-columns: 1fr; }
.pf-cols-3 { grid-template-columns: 1fr; }
.pf-cols-2-1 { grid-template-columns: 1fr; }
@media (min-width: 1024px) {
  .pf-cols-2 { grid-template-columns: 1fr 1fr; }
  .pf-cols-3 { grid-template-columns: 1fr 1fr 1fr; }
  .pf-cols-2-1 { grid-template-columns: 2fr 1fr; }
}
.pf-stack > * + * { margin-top: 12px; }
.pf-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pf-spacer { margin-left: auto; }
.pf-note { font-size: 12px; color: var(--pf-mute); margin-top: 8px; }
.pf-hint { font-size: 12px; color: var(--pf-sub); }

/* ---- RAG goal cards ------------------------------------------------------ */
.pf-goal { display: flex; align-items: center; gap: 12px; padding: 14px 16px; }
.pf-goal-ic { width: 36px; height: 36px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 16px; }
.pf-rag-g { background: #ecfdf5; color: #059669; }
.pf-rag-a { background: #fffbeb; color: #d97706; }
.pf-rag-r { background: #fef2f2; color: #dc2626; }
.pf-goal-add { display: flex; align-items: center; justify-content: center; gap: 6px; border: 1.5px dashed var(--pf-line2); border-radius: 16px; padding: 16px; color: var(--pf-sub); font-size: 13.5px; font-weight: 500; cursor: pointer; background: #fff; }
.pf-goal-add:hover { border-color: var(--pf-accent); color: var(--pf-accent); }

/* ---- charts (inline SVG) ------------------------------------------------- */
.pf-spark { width: 100%; height: auto; display: block; }
.pf-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; }
.pf-bar-lbl { width: 150px; font-size: 12px; color: #475569; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pf-bar-track { flex: 1; background: #f1f5f9; border-radius: 999px; height: 16px; overflow: hidden; }
.pf-bar-fill { height: 16px; border-radius: 999px; background: linear-gradient(90deg, var(--pf-primary), var(--pf-accent)); }
.pf-bar-val { width: 36px; text-align: right; font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
/* heatmap */
.pf-heat { display: grid; gap: 4px; }
.pf-heat-cell { border-radius: 8px; padding: 8px 6px; text-align: center; font-size: 11px; font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---- skeleton / states --------------------------------------------------- */
.pf-loading { text-align: center; padding: 36px 0; color: var(--pf-mute); font-size: 13.5px; }
.pf-skel { animation: pf-pulse 1.4s ease-in-out infinite; }
@keyframes pf-pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }
.pf-err { background: #fef2f2; border: 1px solid #fecaca; border-radius: 14px; padding: 14px 16px; color: #b91c1c; font-size: 13.5px; }
.pf-warn { background: #fffbeb; border: 1px solid #fde68a; border-radius: 14px; padding: 14px 16px; color: #92400e; font-size: 13.5px; }

/* live score badge in screen headers */
.pf-live { text-align: right; }
.pf-live .l { font-size: 11px; text-transform: uppercase; letter-spacing: .03em; color: var(--pf-mute); font-weight: 600; }
.pf-live .v { font-size: 26px; font-weight: 800; color: #16a34a; font-variant-numeric: tabular-nums; line-height: 1; }