:root {
  --tt-primary: #0d6efd;
  --tt-primary-dark: #0a58ca;
  --tt-success: #198754;
  --tt-danger: #dc3545;
  --tt-warning: #fd7e14;
  --tt-radius: .75rem;
  --tt-shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
}

body.tt-body { background-color: var(--bs-tertiary-bg); min-height: 100vh; }

.tt-navbar {
  background-color: var(--bs-body-bg);
  border-bottom: 1px solid var(--bs-border-color);
  box-shadow: var(--tt-shadow);
}
.tt-brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.6rem; height: 1.6rem; border-radius: .4rem;
  background: #fff;
  padding: .1rem;
  flex-shrink: 0;
  box-shadow: var(--tt-shadow);
}
.tt-brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.tt-brand-mark--lg { width: 4.5rem; height: 4.5rem; border-radius: .9rem; padding: .3rem; }
.navbar-brand { font-weight: 700; }
.tt-badge-dot { position: absolute; top: .1rem; right: -.3rem; font-size: .6rem; }

.tt-main--app { padding-bottom: 2.5rem; }

.tt-card {
  border: 1px solid var(--bs-border-color);
  border-radius: var(--tt-radius);
  box-shadow: var(--tt-shadow);
  background: var(--bs-body-bg);
}

.tt-stat-card { border-radius: var(--tt-radius); padding: 1.1rem 1.25rem; color: #fff; }
.tt-stat-card .tt-stat-value { font-size: 1.9rem; font-weight: 700; line-height: 1; }
.tt-stat-card .tt-stat-label { font-size: .8rem; opacity: .9; text-transform: uppercase; letter-spacing: .03em; }
.tt-stat-card.bg-brand-1 { background: linear-gradient(135deg,#0d6efd,#0a58ca); }
.tt-stat-card.bg-brand-2 { background: linear-gradient(135deg,#198754,#146c43); }
.tt-stat-card.bg-brand-3 { background: linear-gradient(135deg,#fd7e14,#c96209); }
.tt-stat-card.bg-brand-4 { background: linear-gradient(135deg,#dc3545,#b02a37); }

.tt-lesson-card { border-radius: var(--tt-radius); border: 1px solid var(--bs-border-color); box-shadow: var(--tt-shadow); }
.tt-lesson-card.is-active { border-color: var(--tt-primary); border-width: 2px; }

.tt-auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at top left, #eaf2ff, #f8f9fa 60%);
  padding: 1.5rem;
}
.tt-auth-card { max-width: 420px; width: 100%; border-radius: 1rem; box-shadow: 0 10px 40px rgba(13,110,253,.12); }

.tt-capture-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 2000;
  display: none; flex-direction: column; align-items: center; justify-content: center; color: #fff; padding: 1.5rem;
}
.tt-capture-overlay.is-open { display: flex; }
.tt-capture-video { width: 100%; max-width: 380px; border-radius: 1rem; background: #111; aspect-ratio: 3/4; object-fit: cover; }

.tt-geofence-pill { font-size: .75rem; }

@media (max-width: 576px) {
  .tt-stat-card .tt-stat-value { font-size: 1.5rem; }
}

/* ---- Sidebar + topbar shell (replaces the old top navbar layout) ---- */
.tt-shell { display: flex; min-height: 100vh; }

.tt-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--bs-body-bg);
  border-right: 1px solid var(--bs-border-color);
  height: 100vh;
  position: sticky;
  top: 0;
  overflow: hidden;
}
.tt-sidebar-offcanvas { width: 280px; }

.tt-sidebar-brand { border-bottom: 1px solid var(--bs-border-color); flex-shrink: 0; }

.tt-sidebar-nav { padding: .5rem .75rem 1.5rem; flex: 1 1 auto; min-height: 0; overflow-y: auto; }

.offcanvas-body.d-flex.flex-column { overflow: hidden; }
.offcanvas-body .tt-sidebar-nav { overflow-y: auto; }

.tt-sidebar-user { flex-shrink: 0; border-top: 1px solid var(--bs-border-color); position: relative; }
.tt-sidebar-user-toggle {
  color: var(--bs-body-color);
  text-decoration: none;
  cursor: pointer;
}
.tt-sidebar-user-toggle:hover { background: var(--bs-tertiary-bg); }
.tt-sidebar-user-menu {
  position: absolute;
  bottom: 100%;
  left: .5rem;
  right: .5rem;
  width: auto;
  margin-bottom: .25rem;
}

.tt-nav-group-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--bs-secondary-color);
  margin: 1rem .5rem .35rem;
}
.tt-nav-group-label:first-child { margin-top: .25rem; }

.tt-nav-link {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem .6rem;
  border-radius: .5rem;
  color: var(--bs-body-color);
  text-decoration: none;
  font-size: .92rem;
}
.tt-nav-link i { width: 1.1rem; text-align: center; opacity: .8; }
.tt-nav-link:hover { background: var(--bs-tertiary-bg); }
.tt-nav-link.active { background: var(--tt-primary); color: #fff; }
.tt-nav-link.active i { opacity: 1; }

.tt-shell-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.tt-topbar {
  background: var(--bs-body-bg);
  border-bottom: 1px solid var(--bs-border-color);
  box-shadow: var(--tt-shadow);
  padding: .6rem 1rem;
  gap: .5rem;
  z-index: 1020;
}

.tt-breadcrumb .breadcrumb { margin: 0; font-size: .85rem; }

@media (max-width: 991.98px) {
  .tt-sidebar { display: none; }
}

/* ---- Timetable weekly grid ---- */
.tt-timetable-grid th { font-size: .8rem; background: var(--bs-tertiary-bg); }
.tt-grid-cell { min-width: 140px; vertical-align: top; padding: .35rem !important; }
.tt-grid-lesson {
  border-radius: .4rem;
  padding: .3rem .4rem;
  margin-bottom: .25rem;
  text-align: left;
}
.tt-grid-lesson:last-child { margin-bottom: 0; }
/* ---- Hover-detail popovers (reports / dashboard) ---- */
.popover { max-width: 320px; }
.tt-popover-body { min-width: 220px; }
.tt-popover-body .border-top { border-color: var(--bs-border-color) !important; }
[data-bs-toggle="popover"]:hover { background-color: var(--bs-tertiary-bg); }

/* ---- Uniform report styling (Attendance, Scorecard, Audit Log, etc.) ----
   One consistent header (crest + title) and one consistent table
   typography scale, on screen and on print, across every report page. */
.tt-report-header { border-bottom: 2px solid var(--bs-border-color); padding-bottom: .75rem; }
.tt-report-school { font-family: var(--bs-font-sans-serif); font-size: .78rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--bs-secondary-color); }
.tt-report-contact { font-family: var(--bs-font-sans-serif); font-size: .7rem; color: var(--bs-secondary-color); }
.tt-report-title { font-family: var(--bs-font-sans-serif); font-size: 1.25rem; font-weight: 700; }
.tt-report-subtitle { font-family: var(--bs-font-sans-serif); font-size: .8rem; color: var(--bs-secondary-color); }
.tt-report-meta { font-family: var(--bs-font-sans-serif); font-size: .75rem; }
.tt-report-footer { border-top: 1px solid var(--bs-border-color); margin-top: 1.5rem; padding-top: .5rem; font-family: var(--bs-font-sans-serif); font-size: .7rem; color: var(--bs-secondary-color); text-align: center; }

.tt-report table thead th {
  font-family: var(--bs-font-sans-serif);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--bs-secondary-color);
}
.tt-report table tbody td,
.tt-report table tbody th {
  font-family: var(--bs-font-sans-serif);
  font-size: .85rem;
}
.tt-report dl.row dt, .tt-report dl.row dd { font-family: var(--bs-font-sans-serif); font-size: .85rem; }

/* ---- Live Classes "live now" indicator ---- */
.tt-live-dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  background: var(--tt-success); box-shadow: 0 0 0 rgba(25,135,84,.5);
  animation: tt-pulse 1.6s infinite;
}
@keyframes tt-pulse {
  0% { box-shadow: 0 0 0 0 rgba(25,135,84,.5); }
  70% { box-shadow: 0 0 0 6px rgba(25,135,84,0); }
  100% { box-shadow: 0 0 0 0 rgba(25,135,84,0); }
}

/* ---- Dashboard month calendar (right-hand panel) ---- */
.tt-calendar td { padding: .3rem .2rem; font-size: .8rem; position: relative; }
.tt-calendar-today { background: var(--tt-primary); color: #fff; border-radius: .35rem; font-weight: 700; }
.tt-calendar-dot {
  display: block; width: 4px; height: 4px; border-radius: 50%;
  background: var(--tt-warning); margin: 1px auto 0;
}
.tt-calendar-today .tt-calendar-dot { background: #fff; }

/* ---- Icon-only row action buttons (label shown as hover tooltip) ---- */
.tt-icon-btn {
  width: 2rem; height: 2rem; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  line-height: 1;
}
.tt-icon-btn i { font-size: .95rem; }

/* ---- Flagged-teacher avatar ring (rule-based risk detection) ---- */
.tt-avatar-flagged img { box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--bs-danger); }

/* ---- Floating chat widget ---- */
.tt-chat-widget { position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 1080; }
.tt-chat-launcher {
  width: 56px; height: 56px; border-radius: 50%; border: none;
  background: var(--tt-primary); color: #fff; font-size: 1.4rem;
  box-shadow: 0 4px 14px rgba(0,0,0,.25);
  display: flex; align-items: center; justify-content: center;
  position: relative; cursor: pointer;
}
.tt-chat-launcher:hover { background: var(--tt-primary-dark); }
.tt-chat-launcher.is-open { background: var(--tt-primary-dark); }
.tt-chat-badge { position: absolute; top: -4px; right: -4px; font-size: .65rem; }

.tt-chat-panel {
  position: absolute; bottom: 68px; right: 0;
  width: 320px; max-width: calc(100vw - 2.5rem);
  height: 440px; max-height: 70vh;
  background: var(--bs-body-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: .9rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.tt-chat-panel-header { background: var(--tt-primary); color: #fff; flex-shrink: 0; }
.tt-chat-body { flex: 1 1 auto; overflow-y: auto; }

.tt-chat-list-item {
  display: flex; border: none; background: none; padding: .5rem;
  border-radius: .5rem; margin-bottom: .1rem;
}
.tt-chat-list-item:hover { background: var(--bs-tertiary-bg); }

.tt-chat-messages { display: flex; flex-direction: column; gap: .4rem; }
.tt-chat-msg { display: flex; flex-direction: column; align-items: flex-start; }
.tt-chat-msg--mine { align-items: flex-end; }
.tt-chat-bubble {
  background: var(--bs-tertiary-bg); border-radius: .8rem; padding: .4rem .7rem;
  max-width: 80%; font-size: .85rem; word-break: break-word;
}
.tt-chat-msg--mine .tt-chat-bubble { background: var(--tt-primary); color: #fff; }
.tt-chat-time { font-size: .65rem; color: var(--bs-secondary-color); margin-top: .1rem; }

.tt-chat-input { border-top: 1px solid var(--bs-border-color); flex-shrink: 0; }

@media print {
  .tt-chat-widget { display: none !important; }
}

@media print {
  .tt-sidebar, .tt-topbar, .tt-breadcrumb, .tt-no-print, form:not(.tt-print-keep), .pagination,
  #ttPushBanner, #ttOfflineBanner, .tt-inprogress-bar, .toast-container, .alert-dismissible, .tt-print-toolbar { display: none !important; }
  .tt-shell-main { margin: 0 !important; width: 100% !important; }
  .tt-main, .container-fluid { padding: 0 !important; margin: 0 !important; max-width: 100% !important; }
  body, .tt-card { background: #fff !important; color: #000 !important; box-shadow: none !important; border: none !important; }
  .tt-report table { font-size: 10pt; }
}

/* "Live" lesson badge (scheduled time reached, not yet started) */
.badge .tt-live-dot { background:#fff; width:.5rem; height:.5rem; margin-right:.35rem; vertical-align:middle; }
.badge.tt-live { animation: tt-glow 1.6s ease-in-out infinite; }
@keyframes tt-glow { 0%,100% { box-shadow:0 0 0 0 rgba(220,53,69,.55);} 50% { box-shadow:0 0 0 .35rem rgba(220,53,69,0);} }

/* Sticky "lesson in progress" bar shown on every teacher page until End is tapped */
.tt-inprogress-bar { position: sticky; top: 0; z-index: 1025; background: var(--tt-primary); color: #fff; box-shadow: var(--tt-shadow); }
.tt-inprogress-bar .tt-live-dot { background: #fff; box-shadow: none; animation: tt-pulse-white 1.2s ease-in-out infinite; }
@keyframes tt-pulse-white { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* ---- Standard printout design (Admin > Settings > Printout & paper) ----
   Used by layouts/print.php and by the report header/footer partials. */
.tt-print-body { background: #e9ecef; margin: 0; color: #000; }
.tt-print-toolbar { position: sticky; top: 0; z-index: 10; background: #fff; border-bottom: 1px solid #dee2e6; padding: .5rem 1rem; }
.tt-print-sheet { background: #fff; margin: 1rem auto; box-shadow: 0 2px 12px rgba(0,0,0,.15); box-sizing: border-box; min-height: 60vh; }
.tt-print-body .tt-card { box-shadow: none; border: 1px solid #dee2e6; }
.tt-print-body .tt-report table { font-size: inherit; }

.tt-letterhead { font-family: var(--bs-font-sans-serif); margin-bottom: 1rem; }
.tt-letterhead-top { display: flex; align-items: center; gap: 1rem; }
.tt-letterhead-crest { flex: 0 0 auto; width: 84px; }
.tt-letterhead-spacer { flex: 0 0 auto; width: 84px; text-align: right; }
.tt-letterhead-crest img { width: 84px; height: 84px; object-fit: contain; }
.tt-letterhead-identity { flex: 1 1 auto; text-align: center; }
.tt-letterhead-school { font-size: 1.3em; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; line-height: 1.15; }
.tt-letterhead-motto { font-style: italic; font-size: .9em; margin-top: .15rem; }
.tt-letterhead-contact { font-size: .82em; color: #444; margin-top: .15rem; }
.tt-letterhead-rule { border-top: 3px double #000; margin: .6rem 0 .5rem; }
.tt-letterhead-title-block { text-align: center; }
.tt-letterhead-title { font-size: 1.15em; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; margin: 0; }
.tt-letterhead-subtitle { font-size: .9em; color: #333; }
.tt-letterhead-meta { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .82em; border-bottom: 1px solid #999; padding: .35rem 0; margin-top: .5rem; }
.tt-letterhead--compact .tt-letterhead-top { align-items: center; }
.tt-letterhead--compact .tt-letterhead-identity { text-align: left; }
.tt-letterhead--compact .tt-letterhead-crest, .tt-letterhead--compact .tt-letterhead-crest img { width: 60px; height: 60px; }
.tt-letterhead--compact .tt-letterhead-spacer { width: auto; }
.tt-letterhead--compact .tt-letterhead-school { font-size: 1.2em; }
.tt-letterhead--compact .tt-letterhead-rule { border-top-width: 2px; border-top-style: solid; }
[data-bs-theme="dark"] .tt-letterhead-contact, [data-bs-theme="dark"] .tt-letterhead-subtitle { color: var(--bs-secondary-color); }
[data-bs-theme="dark"] .tt-letterhead-rule { border-color: var(--bs-body-color); }

.tt-report-footer-block { margin-top: 1.5rem; page-break-inside: avoid; }
.tt-signatures { display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 2.5rem; font-family: var(--bs-font-sans-serif); }
.tt-signature { flex: 1 1 180px; }
.tt-signature--date { flex: 0 1 140px; }
.tt-signature-line { border-bottom: 1px solid #000; height: 1.6rem; }
.tt-signature-label { font-size: .75em; color: #333; margin-top: .2rem; }
[data-bs-theme="dark"] .tt-signature-line { border-color: var(--bs-body-color); }
[data-bs-theme="dark"] .tt-signature-label { color: var(--bs-secondary-color); }

@media print {
  .tt-print-body { background: #fff; }
  .tt-print-sheet { margin: 0; box-shadow: none; width: auto !important; padding: 0 !important; }
  .tt-letterhead-school, .tt-letterhead-title { color: #000 !important; }
  .tt-letterhead-rule, .tt-signature-line { border-color: #000 !important; }
  .tt-report table { page-break-inside: auto; }
  .tt-report tr { page-break-inside: avoid; }
  .tt-report thead { display: table-header-group; }
}

/* ---- Sidebar: collapsible sections with a drop-down chevron ---- */
.tt-nav-group { margin-bottom: .25rem; }
.tt-nav-group-toggle {
  display: flex; align-items: center; gap: .6rem; width: 100%;
  padding: .5rem .6rem; border: 0; border-radius: .5rem; background: transparent;
  color: var(--bs-body-color); font-size: .92rem; font-weight: 600; text-align: left;
}
.tt-nav-group-toggle i:first-child { width: 1.1rem; text-align: center; opacity: .8; }
.tt-nav-group-toggle:hover { background: var(--bs-tertiary-bg); }
.tt-nav-group.has-active > .tt-nav-group-toggle { color: var(--tt-primary); }
.tt-nav-caret { font-size: .7rem; opacity: .7; transition: transform .2s ease; }
.tt-nav-group-toggle.collapsed .tt-nav-caret { transform: rotate(-90deg); }
.tt-nav-group-items { padding-left: .9rem; margin-left: .95rem; border-left: 1px solid var(--bs-border-color); }
.tt-nav-group-items .tt-nav-link { padding: .4rem .55rem; font-size: .88rem; }