/**
 * ╔══════════════════════════════════════════════════════════════╗
 * ║  YETI REPORT KIT — CSS Foundation                          ║
 * ║  Version: 1.4.0                                            ║
 * ║  Zero dependencies. Drop-in for Yii2 layouts.              ║
 * ║                                                            ║
 * ║  v1.4.0 — Three new components for cross-report consistency║
 * ║    • §28  .yr-dd-* — generic styled dropdown               ║
 * ║              (YR.initDropdown — replaces native <select>)  ║
 * ║    • §29  .yr-skel*, .yr-loading-bar — skeleton loader     ║
 * ║              (use during async filter changes / data fetch)║
 * ║    • §30  .yr-export-* — Export ▼ dropdown menu            ║
 * ║              (YR.initExportMenu — XLSX/CSV/Print sections) ║
 * ║                                                            ║
 * ║  v1.3.7 — Table pagination styling                         ║
 * ║    • §27  .yr-pager — footer with info + windowed nav      ║
 * ║                                                            ║
 * ║  v1.3.6 — Unified scoping (single file for embed + full)   ║
 * ║    • Global reset + focus outlines scoped to .yr-scope     ║
 * ║    • Safe to load alongside Bootstrap or any framework     ║
 * ║    • Wrap report in <div class="yr-scope">...</div>        ║
 * ║      OR add yr-scope to body: <body class="yr-page         ║
 * ║      yr-scope"> for full-page Yeti layouts                 ║
 * ║    • Eliminates the separate yeti-report-embed.css variant ║
 * ║                                                            ║
 * ║  v1.3.5 — Sticky offset variable                           ║
 * ║    • --yr-sticky-top-offset (default: 0) lets reports      ║
 * ║      with sticky topbars push thead down by that amount    ║
 * ║    • thead th top now references the variable              ║
 * ║                                                            ║
 * ║  v1.3.4 — Sticky thead — really works this time            ║
 * ║    • Removed overflow:hidden from yr-main and yr-card so   ║
 * ║      position:sticky has no clipping ancestor above thead  ║
 * ║    • Narrow-screen horizontal scroll only applies <=1100px ║
 * ║    • Sticky thead uses opaque bg + z-index:5               ║
 * ║                                                            ║
 * ║  v1.3.3 — Sticky table headers (first attempt, superseded) ║
 * ║    • thead th position:sticky so column titles stay        ║
 * ║      visible while scrolling long student lists            ║
 * ║    • Uses :has() with block-display fallback for older     ║
 * ║      browsers                                              ║
 * ║                                                            ║
 * ║  v1.3.2 — Responsive overflow fixes                        ║
 * ║    • Tables scroll horizontally inside yr-card instead     ║
 * ║      of clipping (min-width 900px preserved)               ║
 * ║    • yr-main gets overflow-x:hidden + min-width:0 so       ║
 * ║      children can't push past viewport                     ║
 * ║    • Topbar title ellipsizes instead of forcing overflow   ║
 * ║    • Content padding shrinks at <=1100px breakpoint        ║
 * ║                                                            ║
 * ║  v1.3.0 — Mobile compliance (iPad/iPhone fixes)            ║
 * ║    • 16px font-size on inputs <=640px (prevents iOS zoom)  ║
 * ║    • Safe-area-inset-bottom padding on mobile toolbars     ║
 * ║    • Touch target audit — 44x44px minimum on mobile        ║
 * ║    • §25 Mobile Compliance section                         ║
 * ║                                                            ║
 * ║  v1.2.1 — Topbar component added to kit                   ║
 * ║    • §4a Topbar: page header with icon, title, subtitle    ║
 * ║    • Class dropdown (.yr-class-drop) for topbar            ║
 * ║    • High contrast, extra spacing, responsive overrides    ║
 * ║    • Fixed --yr-sidebar-bg token to match hub              ║
 * ║                                                            ║
 * ║  v1.2.0 — WCAG 2.2 AA compliance + Accessibility section   ║
 * ║    • Fixed all contrast failures (text, badges, focus)      ║
 * ║    • Added §22 Accessibility (focus, skip, motion, colors)  ║
 * ║    • Added §23 Accessibility Modal + Toggle Switch          ║
 * ║    • Added §24 State Classes (large text, high contrast)    ║
 * ║    • Touch-action: manipulation on all interactive elements ║
 * ║    • Loading/error state components                         ║
 * ║                                                            ║
 * ║  v1.1.0 — Brand alignment with Reports Hub                 ║
 * ║    • Updated brand tokens (#12A0DD blue, #69b64b green)     ║
 * ║    • Warmer surfaces, softer shadows                        ║
 * ║    • Collapsible sidebar with logo image support            ║
 * ║    • Nav active state uses brand green                      ║
 * ║                                                            ║
 * ║  Usage:                                                    ║
 * ║    <link href="/css/yeti-report.css" rel="stylesheet">     ║
 * ║    <script src="/js/yeti-report.js" defer></script>        ║
 * ╚══════════════════════════════════════════════════════════════╝
 */

/* ═══════════════════════════════════════════════════════════════
   §1 — DESIGN TOKENS
   All brand values in one place. Override per-page if needed.
   ═══════════════════════════════════════════════════════════════ */
:root {
  /* Brand */
  --yr-blue:            #12A0DD;
  --yr-blue-dark:       #0e85b8;
  --yr-blue-light:      #e7f3fc;
  --yr-green:           #69b64b;
  --yr-green-light:     #edf5e8;

  /* Semantic */
  --yr-excellent:       #2ecc71;
  --yr-good:            #27ae60;
  --yr-ok:              #69b64b;
  --yr-warn:            #f39c12;
  --yr-caution:         #e67e22;
  --yr-danger:          #c0392b;
  --yr-star-gold:       #f5b731;
  --yr-teal:            #1abc9c;
  --yr-purple:          #9b59b6;

  /* Semantic backgrounds (for pills, cards, finger cells) */
  --yr-excellent-bg:    #e8faf0;
  --yr-excellent-border:#b8eacd;
  --yr-good-bg:         #edf5e8;
  --yr-good-border:     #c5e4ad;
  --yr-ok-bg:           #edf5e8;
  --yr-ok-border:       #c5e4ad;
  --yr-warn-bg:         #fef7e6;
  --yr-warn-border:     #f5dfa0;
  --yr-caution-bg:      #fdf0e6;
  --yr-caution-border:  #f5cba0;
  --yr-danger-bg:       #fce8e6;
  --yr-danger-border:   #f5a8a0;

  /* Surfaces */
  --yr-body-bg:         #f5f6f9;
  --yr-card-bg:         #ffffff;
  --yr-card-border:     #e0e6ed;
  --yr-table-head-bg:   #f8f9fb;
  --yr-table-stripe:    #f6f8fa;
  --yr-detail-bg:       linear-gradient(180deg, #f7f9fc 0%, #fff 100%);

  /* Typography */
  --yr-text-primary:    #1e2d3d;
  --yr-text-secondary:  #5a7085;
  --yr-text-muted:      #657788;
  --yr-font:            'Lexend Deca', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Sidebar */
  --yr-sidebar-bg:      #1a3a5c;
  --yr-sidebar-width:   200px;

  /* Elevation */
  --yr-shadow-sm:       0 1px 3px rgba(0,0,0,0.05);
  --yr-shadow-md:       0 4px 14px rgba(0,0,0,0.07);
  --yr-shadow-lg:       0 8px 24px rgba(0,0,0,0.09);

  /* Accessibility — WCAG-passing text-on-tint pairs */
  --yr-focus-ring:      #0b82b5;
  --yr-badge-blue:      #0a6e96;   /* on --yr-blue-light */
  --yr-badge-green:     #3d7a2a;   /* on --yr-green-light */
  --yr-badge-purple:    #7b4394;   /* on #f3edf7 */
  --yr-badge-gold:      #7a5c10;   /* on #fef5e7 */
  --yr-gold-text:       #866716;   /* star-gold as text on white */

  /* Radii */
  --yr-radius:          12px;
  --yr-radius-sm:       8px;
  --yr-radius-lg:       16px;
  --yr-radius-pill:     20px;

  /* Hero */
  --yr-hero-gradient:   linear-gradient(135deg, #d8eefb 0%, #e9f4fb 40%, #f2f7fc 100%);

  /* Sticky headers — offset from viewport top. Reports with a sticky
     topbar above the table should override this at report level, e.g.:
     .report-page { --yr-sticky-top-offset: 64px; }  */
  --yr-sticky-top-offset: 0px;
}


/* ═══════════════════════════════════════════════════════════════
   §2 — RESET & BASE
   Global rules are scoped to .yr-scope so the kit is safe to load
   on pages that still use Bootstrap or any other CSS framework.
   Every page using the kit must have .yr-scope on the wrapper
   element (or on <body> for full-page Yeti layouts).
   ═══════════════════════════════════════════════════════════════ */
.yr-scope,
.yr-scope *,
.yr-scope *::before,
.yr-scope *::after { margin: 0; padding: 0; box-sizing: border-box; }

.yr-scope {
  font-family: var(--yr-font);
  background: var(--yr-body-bg);
  color: var(--yr-text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Full-page Yeti layouts: body gets min-height when .yr-scope is
   applied directly to <body class="yr-page yr-scope">. Embedded
   reports (inside a Bootstrap layout) don't need body height. */
body.yr-page.yr-scope { min-height: 100vh; }


/* ═══════════════════════════════════════════════════════════════
   §3 — LAYOUT: Sidebar + Main (collapsible)
   ═══════════════════════════════════════════════════════════════ */
.yr-sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--yr-sidebar-width);
  background: linear-gradient(180deg, #153d5e 0%, #123552 30%, #0f2d48 100%);
  display: flex; flex-direction: column;
  z-index: 100; overflow: visible;
  transition: width 0.25s ease;
}

/* Logo area */
.yr-sidebar-logo {
  padding: 16px 20px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  min-height: 64px; overflow: visible;
  position: relative;
}

/* Expanded: logo image (TA-logo-side.png) */
.yr-sidebar-logo .yr-logo-img {
  height: 28px; width: auto; display: block;
  transition: opacity 0.2s;
}

/* Collapsed: Ta| compact icon */
.yr-sidebar-logo .yr-logo-compact {
  display: none; width: 36px; height: 36px; border-radius: 9px;
  background: linear-gradient(135deg, #12A0DD, #69b64b);
  align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(18,160,221,0.3);
  flex-shrink: 0;
}
.yr-logo-compact .yr-lc-t {
  font-family: 'Nunito', sans-serif;
  font-size: 17px; font-weight: 800; color: #fff; line-height: 1;
}
.yr-logo-compact .yr-lc-a {
  font-family: 'Nunito', sans-serif;
  font-size: 14px; font-weight: 700; color: #fff; line-height: 1;
}
.yr-logo-compact .yr-lc-pipe {
  font-family: 'Nunito', sans-serif;
  font-size: 17px; font-weight: 400; color: #fff; line-height: 1;
}

/* Collapse toggle button */
.yr-sidebar-toggle {
  position: absolute; right: -12px; top: 32px;
  transform: translateY(-50%);
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff; border: 1px solid var(--yr-card-border);
  box-shadow: var(--yr-shadow-md);
  cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  z-index: 110; transition: transform 0.2s;
}
.yr-sidebar-toggle:hover {
  border-color: var(--yr-blue);
  box-shadow: var(--yr-shadow-lg);
}
.yr-sidebar-toggle svg {
  width: 12px; height: 12px;
  color: var(--yr-text-muted);
  transition: transform 0.25s;
}

/* Nav */
.yr-sidebar-nav { padding: 12px 0; flex: 1; overflow-x: hidden; overflow-y: auto; }
.yr-sidebar-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 20px; color: rgba(255,255,255,0.75);
  text-decoration: none; font-size: 14px; font-weight: 400;
  transition: all 0.2s; white-space: nowrap; overflow: hidden;
}
.yr-sidebar-nav a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.yr-sidebar-nav a.active {
  color: #fff; background: #69b64b;
  border-radius: 0 24px 24px 0; margin-right: 12px;
  box-shadow: 0 2px 8px rgba(105,182,75,0.3);
  font-weight: 600;
}
.yr-sidebar-nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.yr-sidebar-nav a .yr-nav-label { transition: opacity 0.2s; }

/* Nav separator */
.yr-nav-sep {
  height: 1px; background: rgba(255,255,255,0.08); margin: 6px 20px;
}

/* Footer */
.yr-sidebar-footer {
  padding: 0; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; overflow: visible;
}

/* Solution Center link */
.yr-sidebar-footer .yr-sf-help {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; color: rgba(255,255,255,0.6);
  text-decoration: none; font-size: 13px; font-weight: 400;
  transition: all 0.2s; white-space: nowrap; overflow: visible;
}
.yr-sidebar-footer .yr-sf-help:hover { color: #fff; background: rgba(255,255,255,0.06); }
.yr-sidebar-footer .yr-sf-help svg { width: 18px; height: 18px; flex-shrink: 0; overflow: visible; }

/* User row — clickable */
.yr-sidebar-footer .yr-sf-user {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-top: 1px solid rgba(255,255,255,0.06);
  cursor: pointer; position: relative; transition: background 0.15s;
}
.yr-sf-user:hover { background: rgba(255,255,255,0.04); }
.yr-sidebar-footer .yr-sf-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #2a5a8a; display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 12px;
  color: #fff; flex-shrink: 0;
}
.yr-sidebar-footer .yr-sf-info {
  flex: 1; white-space: nowrap; overflow: hidden;
  transition: opacity 0.2s;
}
.yr-sidebar-footer .yr-sf-name { color: #fff; font-size: 13px; font-weight: 600; }
.yr-sidebar-footer .yr-sf-role { color: rgba(255,255,255,0.5); font-size: 11px; }

/* User row chevron */
.yr-sf-chevron {
  margin-left: auto; color: rgba(255,255,255,0.35);
  transition: transform 0.2s, color 0.15s; flex-shrink: 0;
}
.yr-sf-chevron svg { width: 12px; height: 12px; }
.yr-sf-user:hover .yr-sf-chevron { color: rgba(255,255,255,0.6); }
.yr-sf-user.open .yr-sf-chevron { transform: rotate(180deg); color: rgba(255,255,255,0.8); }

/* User popup menu — pops upward */
.yr-user-menu {
  position: absolute; bottom: calc(100% + 6px);
  left: 12px; right: 12px;
  background: var(--yr-card-bg); border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius); box-shadow: var(--yr-shadow-lg);
  z-index: 120; opacity: 0; transform: translateY(6px);
  pointer-events: none; transition: all 0.18s ease; overflow: hidden;
}
.yr-user-menu.open { opacity: 1; transform: translateY(0); pointer-events: auto; max-height: calc(100vh - 120px); overflow-y: auto; }

.yr-user-menu-header {
  padding: 12px 14px; border-bottom: 1px solid var(--yr-card-border);
  display: flex; align-items: center; gap: 10px;
}
.yr-user-menu-header .yr-um-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--yr-blue); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 13px;
  color: #fff; flex-shrink: 0;
}
.yr-user-menu-header .yr-um-name { font-size: 13px; font-weight: 700; color: var(--yr-text-primary); }
.yr-user-menu-header .yr-um-school { font-size: 11px; color: var(--yr-text-muted); font-weight: 400; }

.yr-user-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; font-size: 13px; font-weight: 500;
  color: var(--yr-text-primary); text-decoration: none;
  transition: all 0.12s; min-height: 44px;
}
.yr-user-menu a:hover { background: var(--yr-blue-light); color: var(--yr-blue); }
.yr-user-menu a svg { width: 16px; height: 16px; color: var(--yr-text-muted); flex-shrink: 0; }
.yr-user-menu a:hover svg { color: var(--yr-blue); }
.yr-user-menu .yr-um-sep { height: 1px; background: var(--yr-card-border); margin: 4px 0; }
.yr-user-menu a.yr-um-logout { color: var(--yr-danger); }
.yr-user-menu a.yr-um-logout svg { color: var(--yr-danger); }
.yr-user-menu a.yr-um-logout:hover { background: #fce8e6; }

/* Collapsed: menu pops to the right */
.yr-sidebar.collapsed .yr-user-menu {
  bottom: 0; left: calc(100% + 8px); right: auto; min-width: 220px;
}
.yr-sidebar.collapsed .yr-sf-chevron { display: none; }

/* ── Collapsed state ── */
.yr-sidebar.collapsed { width: 64px; }
.yr-sidebar.collapsed .yr-sidebar-logo { padding: 14px 0; justify-content: center; }
.yr-sidebar.collapsed .yr-logo-img { display: none; }
.yr-sidebar.collapsed .yr-logo-compact { display: flex; }
.yr-sidebar.collapsed .yr-sidebar-toggle svg { transform: rotate(180deg); }
.yr-sidebar.collapsed .yr-nav-sep { margin: 6px 12px; }
.yr-sidebar.collapsed .yr-sidebar-nav a { justify-content: center; padding: 12px 0; }
.yr-sidebar.collapsed .yr-sidebar-nav a .yr-nav-label { opacity: 0; width: 0; overflow: hidden; }
.yr-sidebar.collapsed .yr-sidebar-nav a.active { margin-right: 0; border-radius: 0 12px 12px 0; margin-right: 4px; }
.yr-sidebar.collapsed .yr-sidebar-footer .yr-sf-help { justify-content: center; padding: 10px 0; }
.yr-sidebar.collapsed .yr-sidebar-footer .yr-sf-help .yr-nav-label { opacity: 0; width: 0; overflow: hidden; }
.yr-sidebar.collapsed .yr-sidebar-footer .yr-sf-user { justify-content: center; padding: 12px 0; }
.yr-sidebar.collapsed .yr-sidebar-footer .yr-sf-info { opacity: 0; width: 0; overflow: hidden; }

/* Collapsed tooltips */
.yr-sidebar.collapsed .yr-sidebar-nav a { position: relative; }
.yr-sidebar.collapsed .yr-sidebar-nav a::after {
  content: attr(data-label);
  position: absolute; left: calc(100% + 8px); top: 50%;
  transform: translateY(-50%);
  background: var(--yr-text-primary); color: #fff;
  font-size: 12px; font-weight: 600;
  padding: 5px 10px; border-radius: 6px;
  white-space: nowrap; opacity: 0; pointer-events: none;
  transition: opacity 0.15s; box-shadow: var(--yr-shadow-md);
}
.yr-sidebar.collapsed .yr-sidebar-nav a:hover::after { opacity: 1; }
.yr-sidebar.collapsed .yr-sf-help { position: relative; }
.yr-sidebar.collapsed .yr-sf-help::after {
  content: attr(data-label);
  position: absolute; left: calc(100% + 8px); top: 50%;
  transform: translateY(-50%);
  background: var(--yr-text-primary); color: #fff;
  font-size: 12px; font-weight: 600;
  padding: 5px 10px; border-radius: 6px;
  white-space: nowrap; opacity: 0; pointer-events: none;
  transition: opacity 0.15s; box-shadow: var(--yr-shadow-md);
}
.yr-sidebar.collapsed .yr-sf-help:hover::after { opacity: 1; }

.yr-main {
  /* margin-left: var(--yr-sidebar-width); */
  min-height: 100vh;
  min-width: 0;
  /* NO overflow-x:hidden here — it creates a scroll container that
     breaks position:sticky on descendants. Horizontal overflow is
     prevented by applying max-width on .yr-content and overflow-x
     on specific wide children (like the table card) when needed. */
  transition: margin-left 0.25s ease;
}
.yr-sidebar.collapsed ~ .yr-main { margin-left: 64px; }


/* ═══════════════════════════════════════════════════════════════
   §4 — HERO BANNER
   ═══════════════════════════════════════════════════════════════ */
.yr-hero {
  background: var(--yr-hero-gradient);
  position: relative; overflow: hidden;
  padding: 28px 36px 20px;
}
.yr-hero-bg {
  position: absolute; bottom: 0; right: 0;
  width: 50%; height: 100%;
  opacity: 0.12; pointer-events: none;
}

.yr-breadcrumb {
  font-size: 12px; color: var(--yr-text-muted); margin-bottom: 8px;
}
.yr-breadcrumb a { color: var(--yr-blue); text-decoration: none; }
.yr-breadcrumb .yr-sep { margin: 0 6px; }

.yr-hero-title {
  display: flex; align-items: center; gap: 16px;
}
.yr-hero-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, #12A0DD, #0e85b8);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 3px 12px rgba(18,160,221,0.3);
  color: #fff; flex-shrink: 0;
}
.yr-hero-icon.round { border-radius: 50%; }
.yr-hero-icon svg { width: 24px; height: 24px; }

.yr-hero-meta h1 { font-size: 22px; font-weight: 700; color: var(--yr-text-primary); }
.yr-hero-meta .yr-sub {
  font-size: 13px; color: var(--yr-text-secondary);
  font-weight: 400; margin-top: 2px;
}
.yr-hero-meta .yr-sub strong { color: var(--yr-blue); font-weight: 600; }


/* ═══════════════════════════════════════════════════════════════
   §4a — TOP BAR (page header — replaces hero on non-dashboard pages)
   White bar with icon, title, subtitle, and optional class dropdown.
   ═══════════════════════════════════════════════════════════════ */
.yr-topbar {
  background: #fff; border-bottom: none; padding: 14px 32px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  position: relative;
}
.yr-topbar::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--yr-blue); opacity: 0.15;
}
.yr-topbar-left { display: flex; align-items: center; gap: 12px; min-width: 0; flex: 1 1 auto; }
.yr-topbar-left > div { min-width: 0; }
.yr-topbar-left h1 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.yr-topbar-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #12A0DD, #0e85b8);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(18,160,221,0.25); color: #fff; flex-shrink: 0;
}
.yr-topbar-icon svg { width: 18px; height: 18px; }
.yr-topbar-left h1 { font-size: 17px; font-weight: 700; color: var(--yr-blue); }
.yr-topbar-left .yr-sub { font-size: 11px; color: var(--yr-text-muted); }

/* Class dropdown in topbar */
.yr-class-drop {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--yr-text-primary);
  background: var(--yr-table-stripe); border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius-sm); padding: 6px 12px;
  cursor: pointer; transition: border-color 0.15s;
  flex-shrink: 0; font-family: var(--yr-font); margin-left: auto;
}
.yr-class-drop:hover { border-color: var(--yr-blue); }
.yr-class-drop svg { width: 10px; height: 10px; color: var(--yr-text-muted); flex-shrink: 0; }
.yr-class-drop .yr-cd-label {
  font-size: 9px; font-weight: 700; color: var(--yr-text-muted);
  text-transform: uppercase; letter-spacing: 0.5px;
}

/* Report trail — breadcrumb path back to Reports Hub */
.yr-report-trail {
  display: flex; align-items: center; gap: 0;
  padding: 12px 0 14px; margin-bottom: 2px;
  font-size: 13px; font-weight: 500;
}
.yr-trail-back {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--yr-blue); text-decoration: none;
  font-weight: 600; transition: color 0.15s;
}
.yr-trail-back:hover { color: var(--yr-blue-dark); text-decoration: underline; }
.yr-trail-back svg { width: 14px; height: 14px; flex-shrink: 0; }
.yr-trail-sep {
  margin: 0 8px; color: var(--yr-text-muted);
  font-size: 12px; font-weight: 400;
}
.yr-trail-link {
  color: var(--yr-blue); text-decoration: none;
  transition: color 0.15s;
}
.yr-trail-link:hover { color: var(--yr-blue-dark); text-decoration: underline; }
.yr-trail-current {
  color: var(--yr-text-secondary); font-weight: 600;
}


/* Class dropdown inside topbar */
.yr-topbar .yr-class-selector { min-width: 220px; z-index: 10; margin-left: auto; }
.yr-topbar .yr-class-menu { z-index: 61; }


/* ═══════════════════════════════════════════════════════════════
   §5 — TAB BAR
   ═══════════════════════════════════════════════════════════════ */
.yr-tabs {
  display: flex; background: #fff;
  border-bottom: 2px solid var(--yr-card-border);
  padding: 0 36px;
}
.yr-tabs a {
  padding: 14px 18px; font-size: 13px; font-weight: 500;
  color: var(--yr-text-muted); text-decoration: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px; transition: all 0.2s;
}
.yr-tabs a:hover { color: var(--yr-text-secondary); }
.yr-tabs a.active {
  color: var(--yr-blue);
  border-bottom-color: var(--yr-blue);
  font-weight: 600;
}

.yr-content {
margin : -45px 20px 0px -210px !important;
}

/* Mid-screen: reduce horizontal padding so content doesn't clip */
@media (max-width: 1250px) {
  .yr-content { margin: -45px 20px 0px 25px !important;}
}


/* ═══════════════════════════════════════════════════════════════
   §6 — STAT CARDS (Summary Row)
   Use: <div class="yr-stat-row yr-cols-5"> ... </div>
   ═══════════════════════════════════════════════════════════════ */
.yr-stat-row {
  display: grid; gap: 14px; margin-bottom: 24px;
}
.yr-cols-3 { grid-template-columns: repeat(3, 1fr); }
.yr-cols-4 { grid-template-columns: repeat(4, 1fr); }
.yr-cols-5 { grid-template-columns: repeat(5, 1fr); }

.yr-stat-card {
  background: var(--yr-card-bg);
  border-radius: var(--yr-radius);
  padding: 18px 20px;
  box-shadow: var(--yr-shadow-sm);
  border: 1px solid var(--yr-card-border);
  position: relative; overflow: hidden;
}
/* Top accent bar — set color with data-accent or modifier */
.yr-stat-card::after {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  border-radius: var(--yr-radius) var(--yr-radius) 0 0;
  background: var(--_accent, var(--yr-blue));
}
.yr-stat-card[data-accent="blue"]   { --_accent: var(--yr-blue); }
.yr-stat-card[data-accent="green"]  { --_accent: var(--yr-green); }
.yr-stat-card[data-accent="gold"]   { --_accent: var(--yr-star-gold); }
.yr-stat-card[data-accent="teal"]   { --_accent: var(--yr-teal); }
.yr-stat-card[data-accent="purple"] { --_accent: var(--yr-purple); }
.yr-stat-card[data-accent="danger"] { --_accent: var(--yr-danger); }

.yr-stat-icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 10px; font-size: 16px;
  background: color-mix(in srgb, var(--_accent) 12%, white);
  color: var(--_accent);
}
.yr-stat-value {
  font-size: 28px; font-weight: 700; line-height: 1;
  color: var(--_accent);
}
.yr-stat-label {
  font-size: 10px; font-weight: 600;
  color: var(--yr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px; margin-top: 4px;
}
.yr-stat-sub {
  font-size: 12px; color: var(--yr-text-secondary);
  margin-top: 6px; font-weight: 400;
}


/* ═══════════════════════════════════════════════════════════════
   §7 — SECTION CARD
   Generic container for report sections
   ═══════════════════════════════════════════════════════════════ */
.yr-card {
  background: var(--yr-card-bg);
  border-radius: var(--yr-radius);
  box-shadow: var(--yr-shadow-sm);
  border: 1px solid var(--yr-card-border);
  margin-bottom: 20px;
  /* NO overflow clipping here — it would break sticky thead.
     Rounded corners still work because the table has matching radii below. */
}
.yr-card > .yr-table {
  min-width: 900px;
}
/* Round the card's inner table corners so the missing overflow:hidden
   doesn't leave square edges where the table meets the card border */
.yr-card > .yr-table tbody tr:last-child td:first-child {
  border-bottom-left-radius: var(--yr-radius);
}
.yr-card > .yr-table tbody tr:last-child td:last-child {
  border-bottom-right-radius: var(--yr-radius);
}

/* (Sticky thead rule merged into the base .yr-table thead th below) */

.yr-card-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--yr-card-border);
  display: flex; align-items: center;
  justify-content: space-between;
}
.yr-card-header h2 {
  font-size: 15px; font-weight: 700;
  display: flex; align-items: center; gap: 8px;
  color: var(--yr-text-primary);
}
.yr-card-header h2 svg {
  width: 16px; height: 16px; color: var(--yr-blue);
}
.yr-card-body { padding: 20px 22px; }

/* Compact variant for inline detail panels */
.yr-card-sm .yr-card-header {
  padding: 10px 14px;
  background: var(--yr-table-head-bg);
  font-size: 12px;
}
.yr-card-sm .yr-card-body { padding: 12px 14px; }


/* ═══════════════════════════════════════════════════════════════
   §8 — BADGE / PILL
   ═══════════════════════════════════════════════════════════════ */
.yr-badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 10px;
  font-size: 11px; font-weight: 600;
  background: var(--yr-blue); color: #fff;
}
.yr-pill {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: var(--yr-radius-pill);
  font-weight: 600; font-size: 12px;
}
/* Pill tiers — apply with data-tier or class */
.yr-pill[data-tier="excellent"], .yr-pill-excellent { background: var(--yr-excellent-bg); color: var(--yr-excellent); }
.yr-pill[data-tier="good"],      .yr-pill-good      { background: var(--yr-good-bg);      color: var(--yr-good); }
.yr-pill[data-tier="ok"],        .yr-pill-ok         { background: var(--yr-ok-bg);        color: var(--yr-ok); }
.yr-pill[data-tier="warn"],      .yr-pill-warn       { background: var(--yr-warn-bg);      color: var(--yr-warn); }
.yr-pill[data-tier="caution"],   .yr-pill-caution    { background: var(--yr-caution-bg);   color: var(--yr-caution); }
.yr-pill[data-tier="danger"],    .yr-pill-danger     { background: var(--yr-danger-bg);    color: var(--yr-danger); }


/* ═══════════════════════════════════════════════════════════════
   §9 — DATA TABLE
   ═══════════════════════════════════════════════════════════════ */
.yr-table { width: 100%; border-collapse: collapse; }

/* Column headers — base styling. Sticky behavior is handled by
   YR.initStickyHeader() in JS, which clones the thead into a fixed
   container. See §26 for the floater CSS. */
.yr-table thead th {
  text-align: left; padding: 12px 14px;
  font-size: 11px; font-weight: 700;
  color: var(--yr-text-muted);
  text-transform: uppercase; letter-spacing: 0.6px;
  border-bottom: 2px solid var(--yr-card-border);
  background: var(--yr-table-head-bg);
  white-space: nowrap;
}
.yr-table thead th.sortable { cursor: pointer; user-select: none; }
.yr-table thead th.sortable:hover { color: var(--yr-blue); }
.yr-table thead th .yr-sort-icon {
  font-size: 10px; margin-left: 3px; opacity: 0.4;
  display: inline-block; transition: transform 0.2s;
}
.yr-table thead th.sorted .yr-sort-icon { opacity: 1; color: var(--yr-blue); }
.yr-table thead th.sort-desc .yr-sort-icon { transform: rotate(180deg); }

.yr-table tbody td {
  padding: 12px 14px; font-size: 13px;
  border-bottom: 1px solid #f0f4f7;
  vertical-align: middle;
}
.yr-table tbody tr.yr-data-row { cursor: pointer; transition: background 0.15s; }
.yr-table tbody tr.yr-data-row:hover { background: var(--yr-table-stripe); }
.yr-table tbody tr.yr-data-row.expanded { background: var(--yr-blue-light); }

/* Chevron */
.yr-chev {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
}
.yr-chev svg {
  width: 14px; height: 14px;
  color: var(--yr-text-muted);
  transition: transform 0.25s ease;
}
tr.expanded .yr-chev svg {
  transform: rotate(180deg); color: var(--yr-blue);
}


/* ═══════════════════════════════════════════════════════════════
   §10 — TABLE CELL COMPONENTS
   Reusable cell patterns for inside <td>
   ═══════════════════════════════════════════════════════════════ */

/* Student name + avatar */
.yr-name-cell { display: flex; align-items: center; gap: 10px; }
.yr-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 11px; color: #fff; flex-shrink: 0;
}
.yr-avatar-lg { width: 52px; height: 52px; font-size: 20px; }
.yr-name { font-weight: 600; font-size: 13px; }

/* WPM with mini bar */
.yr-wpm-cell { display: flex; align-items: center; gap: 8px; }
.yr-wpm-val { font-weight: 600; font-size: 13px; min-width: 28px; }

/* Mini progress bar */
.yr-bar-track {
  height: 5px; background: #edf1f5;
  border-radius: 3px; overflow: hidden;
}
.yr-bar-fill {
  height: 100%; border-radius: 3px;
  transition: width 0.5s ease;
}
.yr-bar-track.thick { height: 6px; }
.yr-bar-track.w60 { width: 60px; }
.yr-bar-track.w80 { width: 80px; }
.yr-bar-track.full { width: 100%; }

/* Stars */
.yr-stars { white-space: nowrap; font-size: 16px; letter-spacing: -1px; }
.yr-star-on  { color: var(--yr-star-gold); }
.yr-star-off { color: #d5dde5; }

/* Status dot + label */
.yr-status { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; }
.yr-dot {
  width: 8px; height: 8px; border-radius: 50%;
}

/* Mini key badges (for problem keys column) */
.yr-key-list { display: flex; gap: 3px; flex-wrap: wrap; }
.yr-key-mini {
  width: 22px; height: 22px; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; color: #fff;
}
.yr-key-more {
  font-size: 10px; color: var(--yr-text-muted);
  font-weight: 600; padding: 0 4px; line-height: 22px;
}


/* ═══════════════════════════════════════════════════════════════
   §11 — EXPANDABLE DETAIL PANEL
   ═══════════════════════════════════════════════════════════════ */
.yr-detail-row td {
  padding: 0 !important;
  border-bottom: 2px solid var(--yr-blue) !important;
}
.yr-detail-panel {
  overflow: hidden;
  transition: max-height 0.4s ease;
  background: var(--yr-detail-bg);
}
.yr-detail-panel.open { max-height: 1400px; }
.yr-detail-inner { padding: 20px 24px 24px; }

/* Stat strip inside detail */
.yr-detail-stats {
  display: flex; gap: 24px; margin-bottom: 18px; flex-wrap: wrap;
}
.yr-detail-stat { display: flex; flex-direction: column; gap: 1px; }
.yr-detail-stat .yr-ds-label {
  font-size: 10px; font-weight: 600;
  color: var(--yr-text-muted);
  text-transform: uppercase; letter-spacing: 0.5px;
}
.yr-detail-stat .yr-ds-value {
  font-size: 16px; font-weight: 700;
  color: var(--yr-text-primary);
}

/* Multi-column detail layout */
.yr-detail-cols {
  display: grid; gap: 16px;
}
.yr-detail-cols-2 { grid-template-columns: 1fr 1fr; }
.yr-detail-cols-3 { grid-template-columns: 1fr 1fr 1fr; }

/* Loading spinner */
.yr-loading {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 40px 20px; gap: 12px;
}
.yr-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--yr-card-border);
  border-top-color: var(--yr-blue);
  border-radius: 50%;
  animation: yr-spin 0.7s linear infinite;
}
@keyframes yr-spin { to { transform: rotate(360deg); } }
.yr-loading-text { font-size: 13px; color: var(--yr-text-muted); font-weight: 500; }


/* ═══════════════════════════════════════════════════════════════
   §12 — TYPING ANALYTICS COMPONENTS
   Specific to typing reports but reusable across all games
   ═══════════════════════════════════════════════════════════════ */

/* Key accuracy row */
.yr-key-row {
  display: flex; align-items: center; gap: 8px; padding: 5px 0;
}
.yr-key-badge {
  width: 26px; height: 26px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; color: #fff; flex-shrink: 0;
}
.yr-key-badge.lg { width: 36px; height: 36px; border-radius: 10px; font-size: 16px; }
.yr-key-pct {
  font-size: 11px; font-weight: 600;
  color: var(--yr-text-secondary);
  min-width: 32px; text-align: right;
}
.yr-key-time {
  font-size: 10px; color: var(--yr-text-muted);
  min-width: 48px; text-align: right;
}

/* Mix-up chips */
.yr-mixup-grid { display: flex; flex-wrap: wrap; gap: 4px; }
.yr-mixup-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: #f4f7fa; border: 1px solid #e4eaf0;
  border-radius: 6px; padding: 4px 8px;
  font-size: 12px; font-weight: 600;
}
.yr-mixup-chip.lg {
  gap: 6px; border-radius: var(--yr-radius-sm);
  padding: 8px 14px; font-size: 14px;
}
.yr-mixup-from  { color: var(--yr-danger); }
.yr-mixup-arrow { color: var(--yr-text-muted); font-size: 10px; }
.yr-mixup-to    { color: var(--yr-green); }
.yr-mixup-count {
  font-size: 9px; color: var(--yr-text-muted);
  margin-left: 1px;
}

/* Finger strength map */
.yr-finger-map {
  display: flex; flex-direction: column;
  align-items: center; gap: 12px; padding: 10px 0;
}
.yr-finger-row { display: flex; gap: 8px; justify-content: center; }
.yr-finger-cell {
  text-align: center; border-radius: var(--yr-radius-sm);
  padding: 14px 8px; border: 2px solid transparent;
}
.yr-finger-cell.compact {
  padding: 8px 4px; border-width: 1.5px;
  border-radius: 6px;
}
.yr-finger-cell .yr-f-pct { font-size: 24px; font-weight: 700; line-height: 1; }
.yr-finger-cell.compact .yr-f-pct { font-size: 16px; }
.yr-finger-cell .yr-f-lbl {
  font-size: 10px; font-weight: 600; color: var(--yr-text-muted);
  text-transform: uppercase; letter-spacing: 0.6px; margin-top: 4px;
}
.yr-finger-cell.compact .yr-f-lbl { font-size: 8px; letter-spacing: 0.4px; margin-top: 2px; }

/* Finger grid (compact, for detail panels) */
.yr-finger-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.yr-finger-thumb { grid-column: 2 / 4; }

/* Finger strength tier colors */
.yr-f-excellent { background: var(--yr-excellent-bg); border-color: var(--yr-excellent-border); }
.yr-f-excellent .yr-f-pct { color: var(--yr-excellent); }
.yr-f-good { background: var(--yr-good-bg); border-color: var(--yr-good-border); }
.yr-f-good .yr-f-pct { color: var(--yr-good); }
.yr-f-ok { background: var(--yr-warn-bg); border-color: var(--yr-warn-border); }
.yr-f-ok .yr-f-pct { color: var(--yr-warn); }
.yr-f-warn { background: var(--yr-caution-bg); border-color: var(--yr-caution-border); }
.yr-f-warn .yr-f-pct { color: var(--yr-caution); }
.yr-f-danger { background: var(--yr-danger-bg); border-color: var(--yr-danger-border); }
.yr-f-danger .yr-f-pct { color: var(--yr-danger); }


/* ═══════════════════════════════════════════════════════════════
   §13 — BUTTONS & TOOLBAR
   ═══════════════════════════════════════════════════════════════ */
.yr-toolbar { display: flex; gap: 8px; }

.yr-btn {
  background: #f4f7fa; border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius-sm);
  padding: 7px 14px; font-family: var(--yr-font);
  font-size: 12px; font-weight: 600;
  color: var(--yr-text-secondary);
  cursor: pointer; display: inline-flex;
  align-items: center; gap: 5px;
  transition: all 0.15s; text-decoration: none;
}
.yr-btn:hover {
  background: var(--yr-blue-light);
  color: var(--yr-blue);
  border-color: var(--yr-blue);
}
.yr-btn svg { width: 14px; height: 14px; }

.yr-btn-primary {
  background: var(--yr-blue); color: #fff;
  border-color: var(--yr-blue);
}
.yr-btn-primary:hover {
  background: var(--yr-blue-dark); color: #fff;
  border-color: var(--yr-blue-dark);
}

/* Export dropdown */
/* .yr-dropdown-wrap { position: relative; }
.yr-dropdown {
  display: none; position: absolute;
  top: 100%; right: 0; margin-top: 4px;
  background: var(--yr-card-bg);
  border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius-sm);
  box-shadow: var(--yr-shadow-md);
  z-index: 50; overflow: hidden;
}
.yr-dropdown.open { display: block; }
.yr-dropdown a {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; font-size: 13px; font-weight: 500;
  color: var(--yr-text-primary); text-decoration: none;
  transition: background 0.15s;
}
.yr-dropdown a:hover { background: var(--yr-blue-light); color: var(--yr-blue); }
.yr-dropdown a svg { width: 16px; height: 16px; color: var(--yr-text-muted); }
.yr-dropdown a:hover svg { color: var(--yr-blue); }
.yr-dropdown-sep { height: 1px; background: var(--yr-card-border); } */

/* Back link */
.yr-back-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--yr-blue);
  text-decoration: none; font-weight: 500; margin-bottom: 16px;
}
.yr-back-link:hover { text-decoration: underline; }
.yr-back-link svg { width: 16px; height: 16px; }

/* View full report link */
.yr-link {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; color: var(--yr-blue);
  font-weight: 600; text-decoration: none; cursor: pointer;
}
.yr-link:hover { text-decoration: underline; }
.yr-link svg { width: 14px; height: 14px; }


/* ═══════════════════════════════════════════════════════════════
   §14 — LEGEND
   ═══════════════════════════════════════════════════════════════ */
.yr-legend { display: flex; align-items: center; gap: 18px; margin-bottom: 12px; flex-wrap: wrap; }
.yr-legend-item {
  display: flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--yr-text-secondary); font-weight: 500;
}
.yr-legend-dot { width: 10px; height: 10px; border-radius: 3px; }


/* ═══════════════════════════════════════════════════════════════
   §15 — GRID HELPERS
   ═══════════════════════════════════════════════════════════════ */
.yr-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.yr-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }


/* ═══════════════════════════════════════════════════════════════
   §16 — COLOR UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════ */
.yr-c-excellent { color: var(--yr-excellent); }
.yr-c-good      { color: var(--yr-good); }
.yr-c-ok        { color: var(--yr-ok); }
.yr-c-warn      { color: var(--yr-warn); }
.yr-c-caution   { color: var(--yr-caution); }
.yr-c-danger    { color: var(--yr-danger); }
.yr-c-blue      { color: var(--yr-blue); }
.yr-c-muted     { color: var(--yr-text-muted); }

.yr-bg-excellent { background: var(--yr-excellent); }
.yr-bg-good      { background: var(--yr-good); }
.yr-bg-ok        { background: var(--yr-ok); }
.yr-bg-warn      { background: var(--yr-warn); }
.yr-bg-caution   { background: var(--yr-caution); }
.yr-bg-danger    { background: var(--yr-danger); }
.yr-bg-blue      { background: var(--yr-blue); }


/* ═══════════════════════════════════════════════════════════════
   §17 — NETWORK TOAST
   ═══════════════════════════════════════════════════════════════ */
.yr-toast {
  position: fixed; bottom: 20px; right: 20px; z-index: 200;
  background: var(--yr-card-bg); border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius); padding: 12px 18px;
  box-shadow: var(--yr-shadow-md); font-size: 12px;
  color: var(--yr-text-secondary); font-weight: 500;
  display: flex; align-items: center; gap: 8px;
  opacity: 0; transform: translateY(10px);
  transition: all 0.3s ease; pointer-events: none;
}
.yr-toast.show { opacity: 1; transform: translateY(0); }
.yr-toast .yr-toast-dot { width: 8px; height: 8px; border-radius: 50%; }
.yr-toast .yr-toast-dot.loading {
  background: var(--yr-warn);
  animation: yr-pulse 1s infinite;
}
.yr-toast .yr-toast-dot.done { background: var(--yr-excellent); }
.yr-toast .yr-toast-dot.error { background: var(--yr-danger); }
@keyframes yr-pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }


/* ═══════════════════════════════════════════════════════════════
   §18 — PRINT STYLES
   ═══════════════════════════════════════════════════════════════ */
.yr-print-header {
  display: none; padding: 0 0 16px;
  border-bottom: 2px solid var(--yr-blue); margin-bottom: 16px;
}
.yr-print-header h1 { font-size: 18px; font-weight: 700; }
.yr-print-header .yr-print-sub {
  font-size: 12px; color: var(--yr-text-secondary); margin-top: 2px;
}

@media print {
  @page { size: landscape; margin: 0.5in; }
  body { background: #fff !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }

  .yr-sidebar, .yr-sidebar-toggle, .yr-hamburger, .yr-sidebar-overlay,
  .yr-user-menu, .yr-a11y-overlay, .yr-loading-state, .yr-error-state,
  .yr-tabs, .yr-hero, .yr-legend, .yr-topbar, .yr-report-trail,
  .yr-toolbar, .yr-chev, .yr-toast, .yr-link,
  .yr-btn, .yr-dropdown { display: none !important; }

  .yr-main { margin-left: 0 !important; }
  .yr-content { padding: 0 !important; max-width: none !important; }
  .yr-print-header { display: block !important; }

  .yr-stat-card { box-shadow: none !important; border: 1px solid #ccc !important; padding: 12px !important; }
  .yr-card { box-shadow: none !important; border: 1px solid #ccc !important; }

  .yr-table thead th { background: #f0f0f0 !important; font-size: 9px !important; padding: 6px 8px !important; }
  .yr-table tbody td { font-size: 11px !important; padding: 6px 8px !important; }
  .yr-table tbody tr.yr-data-row { break-inside: avoid; }
  .yr-detail-row { display: none !important; }

  .yr-finger-cell { border: 1px solid #ccc !important; }
}


/* ═══════════════════════════════════════════════════════════════
   §19 — HAMBURGER MENU
   ═══════════════════════════════════════════════════════════════ */
.yr-hamburger {
  display: none; width: 44px; height: 44px;
  border-radius: var(--yr-radius-sm);
  background: none; border: 1px solid var(--yr-card-border);
  cursor: pointer; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all 0.15s;
  color: var(--yr-text-muted);
}
.yr-hamburger:hover {
  border-color: var(--yr-blue); color: var(--yr-blue);
  background: var(--yr-blue-light);
}
.yr-hamburger svg { width: 18px; height: 18px; }

.yr-sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.3); z-index: 99;
  opacity: 0; transition: opacity 0.25s;
}
.yr-sidebar-overlay.show { display: block; opacity: 1; }


/* ═══════════════════════════════════════════════════════════════
   §20 — RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

/* Large screens: report-specific adjustments */
@media (max-width: 1200px) {
  .yr-detail-cols-3 { grid-template-columns: 1fr 1fr; }
  .yr-cols-5 { grid-template-columns: repeat(3, 1fr); }
  .yr-grid-3 { grid-template-columns: 1fr 1fr; }
}

/* Table-card horizontal scroll — applies at ALL widths.
   Roster/report tables need ~1500px of intrinsic width for 10 columns;
   below ~1830px viewport the card is narrower than that, and without
   overflow-x:auto the rightmost columns visibly spill past the card's
   right edge. Earlier versions gated this rule behind
   @media (max-width:1100px) to preserve sticky thead — but sticky thead
   is implemented in JS (YR.initStickyHeader clones the thead into a
   fixed floater), not via CSS position:sticky, so this overflow rule
   is safe at every width. */
.yr-card { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Mid screens: auto-collapse sidebar to icon bar */
@media (max-width: 900px) {
  .yr-sidebar { width: 64px; }
  .yr-sidebar .yr-sidebar-logo { padding: 14px 0; justify-content: center; }
  .yr-sidebar .yr-logo-img { display: none; }
  .yr-sidebar .yr-logo-compact { display: flex; }
  .yr-sidebar .yr-sidebar-toggle { display: none; }
  .yr-sidebar .yr-nav-sep { margin: 6px 12px; }
  .yr-sidebar .yr-sidebar-nav a { justify-content: center; padding: 12px 0; }
  .yr-sidebar .yr-sidebar-nav a .yr-nav-label { opacity: 0; width: 0; overflow: hidden; }
  .yr-sidebar .yr-sidebar-nav a.active { margin-right: 0; border-radius: 0 12px 12px 0; margin-right: 4px; }
  .yr-sidebar .yr-sf-help { justify-content: center; padding: 10px 0; }
  .yr-sidebar .yr-sf-help .yr-nav-label { opacity: 0; width: 0; overflow: hidden; }
  .yr-sidebar .yr-sf-user { justify-content: center; padding: 12px 0; }
  .yr-sidebar .yr-sf-info { opacity: 0; width: 0; overflow: hidden; }
  .yr-sidebar .yr-sf-chevron { display: none; }
  .yr-main { margin-left: 64px !important; }
}

/* Small screens: sidebar as overlay with hamburger */
@media (max-width: 768px) {
  .yr-hamburger { display: flex; }
  .yr-sidebar {
    width: 260px; transform: translateX(-260px);
    position: fixed; z-index: 200;
    box-shadow: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .yr-sidebar.mobile-open { transform: translateX(0); box-shadow: 4px 0 24px rgba(0,0,0,0.15); }
  .yr-sidebar.mobile-open .yr-sidebar-logo { padding: 16px 20px; }
  .yr-sidebar.mobile-open .yr-logo-img { display: block; }
  .yr-sidebar.mobile-open .yr-logo-compact { display: none; }
  .yr-sidebar.mobile-open .yr-sidebar-toggle { display: none; }
  .yr-sidebar.mobile-open .yr-nav-sep { margin: 6px 20px; }
  .yr-sidebar.mobile-open .yr-sidebar-nav a { justify-content: flex-start; padding: 12px 20px; min-height: 44px; }
  .yr-sidebar.mobile-open .yr-sidebar-nav a .yr-nav-label { opacity: 1; width: auto; }
  .yr-sidebar.mobile-open .yr-sidebar-nav a.active { margin-right: 12px; border-radius: 0 24px 24px 0; }
  .yr-sidebar.mobile-open .yr-sf-help { justify-content: flex-start; padding: 12px 20px; min-height: 44px; }
  .yr-sidebar.mobile-open .yr-sf-help .yr-nav-label { opacity: 1; width: auto; }
  .yr-sidebar.mobile-open .yr-sf-user { justify-content: flex-start; padding: 14px 20px; }
  .yr-sidebar.mobile-open .yr-sf-info { opacity: 1; width: auto; }
  .yr-sidebar.mobile-open .yr-sf-chevron { display: block; }
  .yr-main { margin-left: 0 !important; }
  .yr-cols-3, .yr-cols-4, .yr-cols-5 { grid-template-columns: 1fr 1fr; }
  .yr-detail-cols-2, .yr-detail-cols-3 { grid-template-columns: 1fr; }
  .yr-grid-2, .yr-grid-3 { grid-template-columns: 1fr; }
  .yr-content { padding: 16px; }
  .yr-topbar { padding-left: 16px; padding-right: 16px; }
  .yr-topbar .yr-class-selector { min-width: 0; width: 100%; order: 10; }
  .yr-topbar .yr-class-selector label { display: none; }
  .yr-hero { padding: 20px 16px; }
  .yr-tabs { padding: 0 16px; overflow-x: auto; }
  .yr-finger-row { flex-wrap: wrap; }
  .yr-finger-cell { width: 80px; }
}

/* Touch devices — show interactive indicators always */
@media (hover: none) {
  .yr-chev { opacity: 0.4; }
  .yr-table tbody tr.yr-data-row { padding-right: 8px; }
}


/* ═══════════════════════════════════════════════════════════════
   §21 — CLASS DROPDOWN (custom, replaces native <select>)
   ═══════════════════════════════════════════════════════════════ */
.yr-class-selector {
  position: relative;
  min-width: 260px;
}
.yr-class-selector label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--yr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.yr-class-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--yr-font);
  font-size: 13px;
  font-weight: 500;
  color: var(--yr-text-primary);
  background: white;
  border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius-sm);
  padding: 9px 14px;
  cursor: pointer;
  box-shadow: var(--yr-shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.yr-class-trigger:hover {
  border-color: var(--yr-blue);
}
.yr-class-trigger.open {
  border-color: var(--yr-blue);
  box-shadow: 0 0 0 3px rgba(19,158,221,0.12);
  border-radius: var(--yr-radius-sm) var(--yr-radius-sm) 0 0;
}
.yr-class-trigger-chevron {
  width: 10px;
  height: 10px;
  transition: transform 0.2s ease;
  color: var(--yr-text-muted);
  flex-shrink: 0;
}
.yr-class-trigger.open .yr-class-trigger-chevron {
  transform: rotate(180deg);
}
.yr-class-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 1px solid var(--yr-blue);
  border-top: 0;
  border-radius: 0 0 var(--yr-radius-sm) var(--yr-radius-sm);
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  z-index: 60;
  max-height: 320px;
  overflow-y: auto;
  overflow-x: hidden;
  /* Thin scrollbar that doesn't clip border-radius */
  scrollbar-width: thin;
  scrollbar-color: #c5cdd6 transparent;
}
.yr-class-menu::-webkit-scrollbar { width: 5px; }
.yr-class-menu::-webkit-scrollbar-track { background: transparent; margin-bottom: 8px; }
.yr-class-menu::-webkit-scrollbar-thumb { background: #c5cdd6; border-radius: 3px; }
.yr-class-menu::-webkit-scrollbar-thumb:hover { background: #a8b5c2; }
.yr-class-menu.open {
  display: block;
}
.yr-class-menu-item {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--yr-text-primary);
  cursor: pointer;
  transition: all 0.1s;
  border-bottom: 1px solid #f0f4f8;
}
.yr-class-menu-item:last-child {
  border-bottom: 0;
}
.yr-class-menu-item:hover {
  background: var(--yr-blue-light);
  color: var(--yr-blue);
}
.yr-class-menu-item.active {
  background: var(--yr-blue);
  color: white;
  font-weight: 600;
}


/* ═══════════════════════════════════════════════════════════════
   §22 — ACCESSIBILITY
   Self-contained. Any page using the YR kit gets all of this.
   ═══════════════════════════════════════════════════════════════ */

/* ── Touch: eliminate 300ms delay ── */
.yr-sidebar-nav a, .yr-sf-user, .yr-sf-help, .yr-sidebar-toggle,
.yr-cat-tile, .yr-report-card, .yr-qlaunch, .yr-ql-remove,
.yr-scope-btn, .yr-back-btn, .yr-class-trigger, .yr-class-menu-item,
.yr-hamburger, .yr-rc-pin, .yr-search-clear,
.yr-user-menu a, .yr-a11y-close, .yr-toggle-track, .yr-error-retry,
.yr-btn, .yr-chev, .yr-link, .yr-class-drop, .yr-trail-back, .yr-trail-link {
  touch-action: manipulation;
}

/* ── Focus indicators (progressive enhancement) ── */
.yr-scope :focus { outline: 2px solid var(--yr-focus-ring); outline-offset: 2px; border-radius: 4px; }
.yr-scope :focus:not(:focus-visible) { outline: none; }
.yr-scope :focus-visible { outline: 2px solid var(--yr-focus-ring); outline-offset: 2px; border-radius: 4px; }

.yr-sidebar-nav a:focus-visible { outline-color: #fff; outline-offset: -2px; border-radius: 0 24px 24px 0; }
.yr-sf-help:focus-visible { outline-color: #fff; outline-offset: -2px; }
.yr-sf-user:focus-visible { outline-color: #fff; outline-offset: -2px; }
.yr-user-menu a:focus-visible { outline-offset: -2px; border-radius: 0; }
.yr-report-card:focus-visible { outline-offset: -1px; border-radius: var(--yr-radius); }
.yr-cat-tile:focus-visible { outline-offset: -1px; border-radius: var(--yr-radius); }
.yr-scope-btn:focus-visible { outline-offset: -2px; border-radius: 0; }
.yr-rc-pin:focus-visible { outline-offset: 0; border-radius: 7px; }
.yr-sidebar-toggle:focus-visible { outline-offset: 0; border-radius: 50%; }
.yr-hamburger:focus-visible { outline-offset: -1px; }
.yr-chev:focus-visible { border-radius: 50%; }

/* ── Skip link ── */
.yr-skip-link {
  position: absolute; top: -100%; left: 16px; z-index: 9999;
  background: var(--yr-blue); color: #fff; padding: 10px 20px;
  border-radius: 0 0 var(--yr-radius-sm) var(--yr-radius-sm);
  font-size: 14px; font-weight: 600; font-family: var(--yr-font);
  text-decoration: none; box-shadow: var(--yr-shadow-lg); transition: top 0.2s;
}
.yr-skip-link:focus { top: 0; }

/* ── Visually hidden (screen reader only) ── */
.yr-sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── SVG overflow helper ── */
.yr-svg-overflow { overflow: visible; }

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Forced colors (Windows High Contrast) ── */
@media (forced-colors: active) {
  .yr-card, .yr-cat-tile, .yr-report-card, .yr-qlaunch,
  .yr-scope-toggle, .yr-search input, .yr-a11y-modal,
  .yr-class-trigger { border: 2px solid ButtonText; }
  .yr-sidebar { border-right: 2px solid ButtonText; }
  .yr-sidebar-nav a.active { border: 2px solid Highlight; }
  .yr-toggle-track { border: 2px solid ButtonText; }
  .yr-toggle input:checked + .yr-toggle-track { background: Highlight; }
  *:focus-visible { outline: 2px solid Highlight; }
}

/* ── Increased contrast preference ── */
@media (prefers-contrast: more) {
  :root {
    --yr-card-border: #8995a1;
    --yr-shadow-sm: 0 1px 3px rgba(0,0,0,0.15);
    --yr-shadow-md: 0 4px 14px rgba(0,0,0,0.2);
  }
  .yr-card, .yr-cat-tile, .yr-report-card { border-width: 2px; }
}


/* ═══════════════════════════════════════════════════════════════
   §23 — ACCESSIBILITY MODAL & TOGGLE SWITCH
   Drop-in component. Requires matching HTML and JS.
   ═══════════════════════════════════════════════════════════════ */

/* Overlay */
.yr-a11y-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.35); z-index: 300;
  align-items: center; justify-content: center;
}
.yr-a11y-overlay.open { display: flex; }

/* Modal panel */
.yr-a11y-modal {
  background: var(--yr-card-bg); border-radius: var(--yr-radius-lg);
  box-shadow: var(--yr-shadow-lg); width: 420px;
  max-width: calc(100vw - 32px); max-height: calc(100vh - 64px);
  overflow-y: auto;
}

.yr-a11y-header {
  padding: 20px 24px 16px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--yr-card-border);
}
.yr-a11y-header h2 {
  font-size: 16px; font-weight: 700;
  display: flex; align-items: center; gap: 10px;
  color: var(--yr-text-primary);
}
.yr-a11y-header h2 svg { width: 20px; height: 20px; color: var(--yr-blue); }
.yr-a11y-close {
  width: 32px; height: 32px; border-radius: 8px; border: none; background: none;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--yr-text-muted); transition: all 0.15s;
}
.yr-a11y-close:hover { background: var(--yr-table-stripe); color: var(--yr-text-primary); }
.yr-a11y-close svg { width: 18px; height: 18px; }

.yr-a11y-body { padding: 20px 24px 24px; }
.yr-a11y-desc { font-size: 13px; color: var(--yr-text-secondary); margin-bottom: 20px; line-height: 1.5; }

.yr-a11y-option {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--yr-card-border);
}
.yr-a11y-option:last-child { border-bottom: none; }
.yr-a11y-opt-info { flex: 1; margin-right: 16px; }
.yr-a11y-opt-label { font-size: 14px; font-weight: 600; color: var(--yr-text-primary); margin-bottom: 2px; }
.yr-a11y-opt-desc { font-size: 12px; color: var(--yr-text-muted); line-height: 1.4; }

/* Toggle switch */
.yr-toggle { position: relative; width: 44px; height: 24px; flex-shrink: 0; }
.yr-toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.yr-toggle-track {
  position: absolute; inset: 0; background: #cdd5de;
  border: 1px solid #7e8d9c; border-radius: 12px;
  cursor: pointer; transition: background 0.2s;
}
.yr-toggle-track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; background: #fff; border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15); transition: transform 0.2s;
}
.yr-toggle input:checked + .yr-toggle-track { background: var(--yr-blue); border-color: var(--yr-blue); }
.yr-toggle input:checked + .yr-toggle-track::after { transform: translateX(20px); }
.yr-toggle input:focus-visible + .yr-toggle-track { outline: 2px solid var(--yr-focus-ring); outline-offset: 2px; }


/* ═══════════════════════════════════════════════════════════════
   §24 — ACCESSIBILITY STATE CLASSES
   Applied to <body> via JS toggle. Covers all YR kit elements.
   ═══════════════════════════════════════════════════════════════ */

/* ── Larger Text ── */
body.yr-large-text { font-size: 18px; }
body.yr-large-text .yr-topbar-left h1 { font-size: 19px; }
body.yr-large-text .yr-topbar-left .yr-sub { font-size: 13px; }
body.yr-large-text .yr-report-trail { font-size: 15px; }
body.yr-large-text .yr-trail-sep { font-size: 14px; }
body.yr-large-text .yr-greeting { font-size: 17px; }
body.yr-large-text .yr-sidebar-nav a { font-size: 15px; }
body.yr-large-text .yr-sf-help { font-size: 15px; }
body.yr-large-text .yr-sf-name { font-size: 15px; }
body.yr-large-text .yr-sf-role { font-size: 13px; }
body.yr-large-text .yr-user-menu a { font-size: 15px; }
body.yr-large-text .yr-um-name { font-size: 15px; }
body.yr-large-text .yr-um-school { font-size: 13px; }
body.yr-large-text .yr-hero-title { font-size: 20px; }
body.yr-large-text .yr-hero-sub { font-size: 14px; }
body.yr-large-text .yr-tab { font-size: 14px; }
body.yr-large-text .yr-stat-value { font-size: 22px; }
body.yr-large-text .yr-stat-label { font-size: 13px; }
body.yr-large-text .yr-table thead th { font-size: 12px; }
body.yr-large-text .yr-table tbody td { font-size: 14px; }
body.yr-large-text .yr-class-trigger { font-size: 15px; }
body.yr-large-text .yr-class-menu-item { font-size: 15px; }
body.yr-large-text .yr-a11y-opt-label { font-size: 16px; }
body.yr-large-text .yr-a11y-opt-desc { font-size: 14px; }
body.yr-large-text .yr-a11y-desc { font-size: 15px; }
body.yr-large-text .yr-a11y-header h2 { font-size: 18px; }
body.yr-large-text .yr-toast { font-size: 14px; }

/* ── High Contrast ── */
body.yr-high-contrast {
  --yr-text-primary: #000;
  --yr-text-secondary: #222;
  --yr-text-muted: #444;
  --yr-card-border: #333;
  --yr-body-bg: #fff;
  --yr-card-bg: #fff;
  --yr-table-head-bg: #f0f0f0;
  --yr-table-stripe: #f5f5f5;
  --yr-shadow-sm: none;
  --yr-shadow-md: none;
  --yr-shadow-lg: none;
}
/* Sidebar */
body.yr-high-contrast .yr-sidebar { background: #000; }
body.yr-high-contrast .yr-sidebar-nav a { color: #fff; }
body.yr-high-contrast .yr-sidebar-nav a:hover { background: rgba(255,255,255,0.15); }
body.yr-high-contrast .yr-sidebar-nav a.active { background: #fff; color: #000; box-shadow: none; }
body.yr-high-contrast .yr-nav-sep { background: rgba(255,255,255,0.3); }
body.yr-high-contrast .yr-sf-help { color: #fff; }
body.yr-high-contrast .yr-sf-name { color: #fff; }
body.yr-high-contrast .yr-sf-role { color: #ccc; }
body.yr-high-contrast .yr-sf-chevron { color: #fff; }
/* Cards, tiles, tables */
body.yr-high-contrast .yr-report-card,
body.yr-high-contrast .yr-cat-tile,
body.yr-high-contrast .yr-card,
body.yr-high-contrast .yr-stat-card { border: 2px solid #333; box-shadow: none; }
body.yr-high-contrast .yr-report-card:hover,
body.yr-high-contrast .yr-cat-tile:hover,
body.yr-high-contrast .yr-card:hover { border-color: #000; }
body.yr-high-contrast .yr-table thead th { border-bottom: 2px solid #000; }
body.yr-high-contrast .yr-table tbody td { border-bottom: 1px solid #999; }
/* Hero */
body.yr-high-contrast .yr-hero { background: #000; color: #fff; }
body.yr-high-contrast .yr-hero-title { color: #fff; }
body.yr-high-contrast .yr-hero-sub { color: #ddd; }
/* Topbar */
body.yr-high-contrast .yr-topbar { border-bottom: 2px solid #000; }
body.yr-high-contrast .yr-topbar::after { display: none; }
body.yr-high-contrast .yr-topbar-left h1 { color: #000; }
body.yr-high-contrast .yr-topbar-icon { background: #000; }
body.yr-high-contrast .yr-trail-back,
body.yr-high-contrast .yr-trail-link { color: #000; text-decoration: underline; }
body.yr-high-contrast .yr-trail-sep { color: #000; }
body.yr-high-contrast .yr-trail-current { color: #000; }
/* Class dropdown */
body.yr-high-contrast .yr-class-trigger { border: 2px solid #333; box-shadow: none; }
body.yr-high-contrast .yr-class-trigger.open { border-color: #000; }
body.yr-high-contrast .yr-class-menu { border: 2px solid #000; }
body.yr-high-contrast .yr-class-menu-item:hover { background: #eee; color: #000; }
body.yr-high-contrast .yr-class-menu-item.active { background: #000; color: #fff; }
/* Tabs */
body.yr-high-contrast .yr-tab.active { border-bottom-color: #000; color: #000; }
/* User menu */
body.yr-high-contrast .yr-user-menu { border: 2px solid #333; }
body.yr-high-contrast .yr-user-menu a:hover { background: #eee; color: #000; }
body.yr-high-contrast .yr-user-menu a:hover svg { color: #000; }
body.yr-high-contrast .yr-user-menu-header { border-bottom: 2px solid #333; }
body.yr-high-contrast .yr-um-sep { background: #333; }
body.yr-high-contrast .yr-user-menu a.yr-um-logout { color: #8b0000; }
/* Toggle switch */
body.yr-high-contrast .yr-toggle-track { background: #999; border-color: #333; }
body.yr-high-contrast .yr-toggle input:checked + .yr-toggle-track { background: #000; border-color: #000; }
/* Focus ring */
body.yr-high-contrast *:focus-visible { outline-color: #000; outline-width: 3px; }
body.yr-high-contrast .yr-sidebar-nav a:focus-visible { outline-color: #fff; }
/* Toast */
body.yr-high-contrast .yr-toast { background: #000; color: #fff; border: 2px solid #fff; }
/* A11y modal */
body.yr-high-contrast .yr-a11y-modal { border: 2px solid #333; }
body.yr-high-contrast .yr-a11y-option { border-bottom-color: #333; }
/* Loading/error */
body.yr-high-contrast .yr-loading-spinner { border-color: #333; border-top-color: #000; }
body.yr-high-contrast .yr-error-retry { background: #000; }

/* ── Increased Spacing ── */
body.yr-extra-spacing { line-height: 2; letter-spacing: 0.02em; }
/* Content */
body.yr-extra-spacing .yr-report-card { padding: 20px 22px; gap: 16px; }
body.yr-extra-spacing .yr-cat-tile { padding: 24px 22px; }
body.yr-extra-spacing .yr-report-grid { gap: 16px; }
body.yr-extra-spacing .yr-cat-grid { gap: 20px; }
body.yr-extra-spacing .yr-card { padding: 24px; }
body.yr-extra-spacing .yr-stat-card { padding: 20px; }
/* Tables */
body.yr-extra-spacing .yr-table thead th { padding: 12px 16px; }
body.yr-extra-spacing .yr-table tbody td { padding: 12px 16px; }
/* Sidebar */
body.yr-extra-spacing .yr-sidebar-nav a { padding: 14px 20px; }
body.yr-extra-spacing .yr-nav-sep { margin: 10px 20px; }
body.yr-extra-spacing .yr-sf-help { padding: 14px 20px; }
body.yr-extra-spacing .yr-sf-user { padding: 16px 20px; }
/* User menu */
body.yr-extra-spacing .yr-user-menu a { padding: 14px 18px; }
body.yr-extra-spacing .yr-user-menu-header { padding: 16px 18px; }
/* Hero, tabs */
body.yr-extra-spacing .yr-hero { padding: 32px 40px 24px; }
body.yr-extra-spacing .yr-topbar { padding: 18px 36px; }
body.yr-extra-spacing .yr-tab { padding: 14px 20px; }
/* A11y modal */
body.yr-extra-spacing .yr-a11y-option { padding: 18px 0; }
body.yr-extra-spacing .yr-a11y-body { padding: 24px 28px 28px; }

/* ── Reduced Motion (via class — no DOM iteration) ── */
body.yr-reduced-motion *,
body.yr-reduced-motion *::before,
body.yr-reduced-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

/* ── Loading & Error States ── */
.yr-loading-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 80px 20px; gap: 16px;
}
.yr-loading-spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--yr-card-border); border-top-color: var(--yr-blue);
  border-radius: 50%; animation: yr-spin 0.7s linear infinite;
}
@keyframes yr-spin { to { transform: rotate(360deg); } }
.yr-loading-state p { font-size: 13px; color: var(--yr-text-muted); font-weight: 500; }

.yr-error-state { display: none; text-align: center; padding: 60px 20px; }
.yr-error-state.show { display: block; }
.yr-error-state svg { width: 48px; height: 48px; color: var(--yr-danger); margin-bottom: 12px; opacity: 0.6; }
.yr-error-state h3 { font-size: 15px; font-weight: 700; color: var(--yr-text-primary); margin-bottom: 4px; }
.yr-error-state p { font-size: 13px; color: var(--yr-text-muted); margin-bottom: 16px; }
.yr-error-retry {
  font-family: var(--yr-font); font-size: 13px; font-weight: 600; color: #fff;
  background: var(--yr-blue); border: none; border-radius: var(--yr-radius-sm);
  padding: 10px 20px; cursor: pointer; transition: background 0.15s;
}
.yr-error-retry:hover { background: var(--yr-blue-dark); }


/* ═══════════════════════════════════════════════════════════════
   §25 — MOBILE COMPLIANCE (v1.3.0)
   iPad/iPhone fixes: input zoom prevention, safe-area insets,
   touch target minimums. All scoped to mobile breakpoints so
   desktop sizing is unchanged.
   ═══════════════════════════════════════════════════════════════ */

/* ── Prevent iOS auto-zoom on input focus ── */
/* iOS Safari zooms in when tapping any input under 16px. */
@media (max-width: 640px) {
  input,
  select,
  textarea,
  .yr-class-trigger,
  .yr-search input,
  .yr-a11y-modal input,
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  input[type="search"],
  input[type="tel"],
  input[type="url"] {
    font-size: 16px !important;
  }
}

/* ── Safe-area-inset-bottom on mobile toolbars ── */
/* iPhone home indicator overlaps bottom UI without this. */
@media (max-width: 768px) {
  .yr-toolbar {
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
  }
  .yr-card-header {
    padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px) * 0.5);
  }
  .yr-toast {
    bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  }
  .yr-sidebar-footer {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .yr-a11y-modal {
    padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  }
}

/* ── Touch target minimums (WCAG 2.5.8) ── */
/* All interactive elements ≥ 44x44px on mobile. */
@media (max-width: 768px) {
  .yr-btn,
  .yr-hamburger,
  .yr-sidebar-nav a,
  .yr-sf-help,
  .yr-sf-user,
  .yr-sidebar-toggle,
  .yr-class-trigger,
  .yr-class-menu-item,
  .yr-dropdown a,
  .yr-user-menu a,
  .yr-a11y-close,
  .yr-toggle,
  .yr-trail-back,
  .yr-trail-link,
  .yr-tabs a,
  .yr-table tbody tr.yr-data-row,
  .yr-error-retry,
  .yr-link {
    min-height: 44px;
  }
  .yr-btn,
  .yr-hamburger,
  .yr-a11y-close,
  .yr-sidebar-toggle {
    min-width: 44px;
  }
  /* Padding adjustment so content stays centered in 44px targets */
  .yr-btn { padding: 11px 16px; }
  .yr-class-trigger { padding: 11px 14px; }
  .yr-dropdown a,
  .yr-user-menu a { padding: 12px 16px; }
  .yr-class-menu-item { padding: 12px 14px; }
}


/* ═══════════════════════════════════════════════════════════════
   §26 — STICKY TABLE HEADER (JS-based floater)
   YR.initStickyHeader() clones the <thead> into this fixed
   container when the real header scrolls out of view.
   ═══════════════════════════════════════════════════════════════ */
.yr-sticky-floater {
  position: fixed;
  top: 0;
  z-index: 50;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1), 0 1px 0 var(--yr-card-border);
  border-radius: 0;
}
.yr-sticky-floater table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 100%;
}
.yr-sticky-floater thead th {
  background: var(--yr-table-head-bg) !important;
}
/* Hide when printing */
@media print {
  .yr-sticky-floater { display: none !important; }
}


/* ═══════════════════════════════════════════════════════════════
   §27 — TABLE PAGINATION (YR.initPagination)
   Footer that sits below a sortable table. Composes with sort,
   filter, and the sticky thead.
   ═══════════════════════════════════════════════════════════════ */
.yr-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--yr-card-border);
  background: var(--yr-card-bg);
  border-radius: 0 0 var(--yr-radius-md, 12px) var(--yr-radius-md, 12px);
  font-size: 13px;
  color: var(--yr-text-secondary);
}
.yr-pager-left {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.yr-pager-info { font-weight: 500; }
.yr-pager-info strong {
  color: var(--yr-text-primary);
  font-weight: 700;
}
.yr-pager-nav { display: flex; align-items: center; gap: 4px; }

.yr-pg-btn {
  min-width: 32px; height: 32px;
  padding: 0 10px;
  background: #fff;
  border: 1px solid var(--yr-card-border);
  border-radius: 6px;
  font-size: 13px; font-weight: 500;
  color: var(--yr-text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  display: inline-flex; align-items: center; justify-content: center;
}
.yr-pg-btn:hover:not(:disabled) {
  border-color: var(--yr-blue);
  color: var(--yr-blue);
}
.yr-pg-btn:focus-visible {
  outline: 2px solid var(--yr-blue);
  outline-offset: 1px;
}
.yr-pg-btn:disabled {
  opacity: 0.4; cursor: not-allowed;
}
.yr-pg-btn.active {
  background: var(--yr-blue);
  border-color: var(--yr-blue);
  color: #fff;
}
.yr-pg-btn.active:hover { color: #fff; }
.yr-pg-arrow {
  font-size: 18px; line-height: 1;
  font-weight: 600;
}
.yr-pg-ellipsis {
  padding: 0 4px;
  color: var(--yr-text-muted);
  font-weight: 600;
  user-select: none;
}

/* Page size selector */
.yr-pg-size {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px;
  color: var(--yr-text-muted);
}
.yr-pg-size span { font-weight: 500; }
.yr-pg-size-select {
  padding: 4px 22px 4px 8px;
  border: 1px solid var(--yr-card-border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  color: var(--yr-text-primary);
  background: #fff;
  cursor: pointer;
}
.yr-pg-size-select:focus {
  outline: none;
  border-color: var(--yr-blue);
  box-shadow: 0 0 0 2px rgba(18, 160, 221, 0.15);
}

/* Mobile: stack info above nav */
@media (max-width: 640px) {
  .yr-pager { flex-direction: column; align-items: stretch; }
  .yr-pager-left { justify-content: space-between; }
  .yr-pager-nav { justify-content: center; flex-wrap: wrap; }
}

/* Hide when printing — a printed report shows all rows */
@media print {
  .yr-pager { display: none; }
}

/* ═══════════════════════════════════════════════════════════════
   §28 — DROPDOWN (YR.initDropdown)
   v1.4.0 — Generic styled dropdown component. Replaces native
   <select> with a fully styled, keyboard-navigable, ARIA-compliant
   popup. Used for class pickers, student pickers, filters, and
   anywhere a styled single-select is needed. Composes with kit's
   focus ring and disabled state.
   ═══════════════════════════════════════════════════════════════ */
.yr-dd-wrap {
  position: relative;
  width: 100%;
}
.yr-dd-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: var(--yr-card-bg);
  border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--yr-text-primary);
  cursor: pointer;
  text-align: left;
  transition: border-color .12s, box-shadow .12s;
}
.yr-dd-button:hover { border-color: #cbd5e1; }
.yr-dd-button:focus-visible {
  outline: none;
  border-color: var(--yr-blue);
  box-shadow: 0 0 0 3px rgba(18, 160, 221, .18);
}
.yr-dd-button[aria-expanded="true"] {
  border-color: var(--yr-blue);
  box-shadow: 0 0 0 3px rgba(18, 160, 221, .18);
}
.yr-dd-button[disabled],
.yr-dd-wrap.is-disabled .yr-dd-button {
  opacity: .55;
  cursor: wait;
  background: var(--yr-table-head-bg);
}
.yr-dd-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.yr-dd-button .yr-dd-chevron {
  width: 14px; height: 14px;
  color: var(--yr-text-muted);
  flex-shrink: 0;
  transition: transform .15s;
}
.yr-dd-button[aria-expanded="true"] .yr-dd-chevron {
  transform: rotate(180deg);
  color: var(--yr-blue);
}

.yr-dd-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--yr-card-bg);
  border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius);
  box-shadow: var(--yr-shadow-lg);
  z-index: 60;
  max-height: 340px;
  overflow-y: auto;
  padding: 4px;
  animation: yr-dd-menu-in .14s ease-out;
}
@keyframes yr-dd-menu-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.yr-dd-menu::-webkit-scrollbar { width: 8px; }
.yr-dd-menu::-webkit-scrollbar-track { background: transparent; }
.yr-dd-menu::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
.yr-dd-menu::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

.yr-dd-option {
  display: block;
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  color: var(--yr-text-primary);
  text-align: left;
  cursor: pointer;
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background .1s, color .1s;
}
.yr-dd-option:hover,
.yr-dd-option:focus-visible {
  background: var(--yr-blue-light);
  color: var(--yr-badge-blue);
  outline: none;
}
.yr-dd-option[aria-selected="true"] {
  background: var(--yr-blue);
  color: #fff;
  font-weight: 500;
}
.yr-dd-option[aria-selected="true"]:hover {
  background: var(--yr-blue-dark);
  color: #fff;
}
.yr-dd-option .yr-dd-meta {
  display: block;
  font-size: 11px;
  color: inherit;
  opacity: .65;
  font-weight: 400;
  margin-top: 1px;
}


/* ═══════════════════════════════════════════════════════════════
   §29 — SKELETON LOADER
   v1.4.0 — Shimmer placeholders shown while data is loading.
   Compose: .yr-skel (default 12px line) | .yr-skel-tall (26px) |
   .yr-skel-pill (rounded) | .yr-skel-circle (avatar). For card-
   level loading states add .yr-card-loading + a .yr-loading-bar
   element at the top.
   JS helpers: YR.skeletonStatCard, YR.skeletonTableRow.
   ═══════════════════════════════════════════════════════════════ */
@keyframes yr-shimmer {
  0%   { background-position: -460px 0; }
  100% { background-position:  460px 0; }
}
@keyframes yr-loading-slide {
  0%   { background-position: -50% 0; }
  100% { background-position: 150% 0; }
}

.yr-skel {
  background: linear-gradient(90deg, #f1f5f9 0%, #e2e8f0 50%, #f1f5f9 100%);
  background-size: 800px 100%;
  animation: yr-shimmer 1.3s infinite linear;
  border-radius: 4px;
  display: block;
  height: 12px;
}
.yr-skel-tall   { height: 26px; border-radius: 6px; }
.yr-skel-pill   { height: 18px; border-radius: 999px; display: inline-block; vertical-align: middle; }
.yr-skel-circle { width: 30px; height: 30px; border-radius: 50%; display: inline-block; vertical-align: middle; flex-shrink: 0; }

.yr-card-loading { position: relative; }
.yr-loading-bar {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--yr-blue), transparent);
  background-size: 50% 100%;
  background-repeat: no-repeat;
  position: absolute;
  top: 0; left: 0; right: 0;
  animation: yr-loading-slide 1.1s infinite ease-in-out;
}

.yr-skel-row td { padding: 14px; }
.yr-skel-row .yr-skel-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}


/* ═══════════════════════════════════════════════════════════════
   §30 — EXPORT MENU (YR.initExportMenu)
   v1.4.0 — Standard Export ▼ button + grouped dropdown menu.
   Renders any combination of XLSX, CSV, and Print options. Visual
   sections keyed by data-format on each option. Companion to the
   existing YR.exportXLSX / YR.exportCSV functions in §6 (JS).
   ═══════════════════════════════════════════════════════════════ */
@keyframes yr-export-menu-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.yr-export-wrap {
  position: relative;
  display: inline-block;
}
.yr-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.yr-export-btn .yr-caret {
  width: 10px; height: 10px;
  margin-left: 2px;
  transition: transform .15s;
}
.yr-export-btn[aria-expanded="true"] .yr-caret {
  transform: rotate(180deg);
}
.yr-export-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--yr-card-bg);
  border: 1px solid var(--yr-card-border);
  border-radius: var(--yr-radius);
  box-shadow: var(--yr-shadow-lg);
  min-width: 320px;
  z-index: 100;
  overflow: hidden;
  padding: 6px 0;
  animation: yr-export-menu-in .14s ease-out;
}
.yr-export-menu-section {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--yr-text-muted);
  padding: 8px 14px 4px;
}
.yr-export-menu button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  color: var(--yr-text-primary);
  transition: background .1s;
}
.yr-export-menu button:hover,
.yr-export-menu button:focus-visible {
  background: var(--yr-blue-light);
  outline: none;
}
.yr-export-menu .yr-opt-icon {
  width: 32px; height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.yr-export-menu button[data-format="xlsx"]  .yr-opt-icon { background: var(--yr-green-light); color: var(--yr-badge-green); }
.yr-export-menu button[data-format="csv"]   .yr-opt-icon { background: var(--yr-warn-bg);     color: var(--yr-badge-gold); }
.yr-export-menu button[data-format="print"] .yr-opt-icon { background: var(--yr-danger-bg);   color: var(--yr-danger); }
.yr-export-menu .yr-opt-text { flex: 1; min-width: 0; }
.yr-export-menu .yr-opt-name {
  font-weight: 600;
  display: block;
  color: var(--yr-text-primary);
  font-size: 13px;
}
.yr-export-menu .yr-opt-meta {
  font-size: 11.5px;
  color: var(--yr-text-muted);
  display: block;
  margin-top: 1px;
  font-weight: 400;
  line-height: 1.35;
}
.yr-export-menu .yr-menu-divider {
  height: 1px;
  background: var(--yr-card-border);
  margin: 6px 0;
}

/* Helper class — used by .yr-dd-menu and .yr-export-menu when closed */
.yr-dd-menu.is-hidden,
.yr-export-menu.is-hidden { display: none !important; }