/* ──────────────────────────────────────────────────────────────────────────────
   app.css — Smart Scheduling Admin Dashboard
   ────────────────────────────────────────────────────────────────────────────── */

/* Layout */
body { font-size: 0.9rem; }
#sidebar {
  width: 220px; min-height: 100vh;
  background: #1a1f36;
  position: fixed; top: 0; left: 0; bottom: 0;
  overflow-y: auto; z-index: 100;
  transition: transform 0.25s ease;
}

/* ── Mobile hamburger button ─────────────────────────────────────────────── */
#mobileNavToggle {
  display: none;
  position: fixed; top: 10px; left: 10px; z-index: 200;
  background: #1a1f36; color: #fff; border: none;
  border-radius: 6px; padding: 6px 11px; font-size: 1.1rem; cursor: pointer;
}
#sidebarOverlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45); z-index: 99;
}

/* ── Responsive: collapse sidebar on small screens ───────────────────────── */
@media (max-width: 767.98px) {
  #sidebar { transform: translateX(-220px); }
  #sidebar.sidebar-open { transform: translateX(0); }
  #sidebarOverlay.sidebar-open { display: block; }
  #main { margin-left: 0; padding: 12px; padding-top: 52px; }
  #mobileNavToggle { display: block; }
}

/* ── QR scan mode: hide sidebar/nav for clean mobile attendance page ─────── */
body.qr-scan-mode #sidebar,
body.qr-scan-mode #mobileNavToggle,
body.qr-scan-mode #sidebarOverlay { display: none !important; }
body.qr-scan-mode #main {
  margin-left: 0 !important;
  padding: 24px 16px !important;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
body.qr-scan-mode #main .section { width: 100%; max-width: 480px; }
body.qr-scan-mode #main h4 { text-align: center; }
#sidebar .brand {
  font-size: 1rem; font-weight: 700; letter-spacing: .04em;
  padding: 1.2rem 1rem .8rem;
  color: #fff; border-bottom: 1px solid rgba(255,255,255,.1);
}
#sidebar .nav-link {
  color: rgba(255,255,255,.75); border-radius: 6px; margin: 2px 8px;
  padding: 7px 12px; font-size: .85rem;
  display: flex; align-items: center; gap: 8px;
}
#sidebar .nav-link:hover, #sidebar .nav-link.active {
  background: rgba(255,255,255,.12); color: #fff;
}
#sidebar .nav-section {
  font-size: .7rem; letter-spacing: .08em; text-transform: uppercase;
  color: rgba(255,255,255,.4); padding: 12px 20px 4px;
}
#main { margin-left: 220px; padding: 24px; }

/* Cards */
.stat-card { border: none; border-radius: 12px; }
.stat-card .value { font-size: 2rem; font-weight: 700; }

/* Tables */
.table-sm td, .table-sm th { vertical-align: middle; }
.badge-locked     { background: #c0392b; }
.badge-confirmed  { background: #27ae60; }
.badge-proposed   { background: #f39c12; }
.badge-cancelled  { background: #6c757d; }
.session-cancelled { opacity: 0.65; text-decoration: line-through; }

/* Settings table – fixed column widths, no layout blowout */
.settings-table { table-layout: fixed; width: 100%; }
.settings-table th, .settings-table td { word-break: break-word; }
.settings-table td.text-break { word-break: break-all; }

/* System page – pill selector */
.system-pill {
  border: 1px solid #dee2e6;
  background: #f8f9fa;
  color: #495057;
}
.system-pill.active {
  background: #0d6efd;
  border-color: #0d6efd;
  color: #fff;
}
.system-pill:hover:not(.active) {
  background: #e9ecef;
}

/* Log viewer */
.log-viewer {
  background: #0d1117;
  color: #c9d1d9;
  font-size: 0.72rem;
  font-family: 'Consolas', 'Monaco', monospace;
  padding: 12px 16px;
  border-radius: 6px;
  max-height: 540px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
}

/* Slot colour palette */
.slot-1 { background: #dbeafe; border-left: 4px solid #3b82f6; }
.slot-2 { background: #dcfce7; border-left: 4px solid #22c55e; }
.slot-3 { background: #fef9c3; border-left: 4px solid #eab308; }
.slot-4 { background: #fce7f3; border-left: 4px solid #ec4899; }

/* Calendar grid */
.cal-grid {
  display: grid;
  grid-template-columns: 90px repeat(7, 1fr);
  gap: 3px;
  font-size: .78rem;
}
.cal-grid .cal-header {
  background: #f1f5f9; font-weight: 600;
  text-align: center; padding: 6px 2px;
  border-radius: 4px;
}
.cal-grid .cal-time {
  background: #f8fafc; font-size: .72rem; color: #64748b;
  display: flex; align-items: center; justify-content: flex-end;
  padding-right: 6px; border-radius: 4px;
}
.cal-cell {
  min-height: 64px; border-radius: 6px; padding: 4px 6px;
  cursor: pointer; transition: opacity .15s;
  border: 1px solid transparent;
}
.cal-cell:empty { background: #f8fafc; border-color: #e2e8f0; }
.cal-cell:hover { opacity: .85; }

/* Proposal table */
#proposalSection { display: none; }
.proposal-row td { vertical-align: middle; }

/* Toast */
.toast-container { z-index: 9999; }

/* Section show/hide */
.section { display: none; }
.section.active { display: block; }

/* Form labels */
.form-label { font-weight: 500; }

/* Loading spinner overlay */
#loadingOverlay {
  position: fixed; inset: 0; background: rgba(255,255,255,.6);
  display: none; align-items: center; justify-content: center; z-index: 5000;
}

/* Month calendar grid */
.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  font-size: .8rem;
}
.month-day-header {
  text-align: center; font-weight: 600;
  background: #f1f5f9; padding: 5px 2px;
  border-radius: 4px;
}
.month-day {
  min-height: 72px; background: #fff;
  border: 1px solid #e2e8f0; border-radius: 6px;
  padding: 4px 6px;
}
.month-day-num {
  font-weight: 700; font-size: .75rem;
  color: #475569; margin-bottom: 3px;
}
.month-event {
  background: #dbeafe; color: #1e40af;
  border-radius: 4px; padding: 2px 5px;
  font-size: .72rem; margin-bottom: 2px;
  white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; cursor: default;
}