:root {
  --primary: #4361ee; 
  --primary-hover: #3a0ca3; 
  --primary-light: rgba(67, 97, 238, 0.1);
  --bg-body: #f8fafc; 
  --text-main: #1e293b; 
  --text-muted: #64748b;
  --sidebar-w: 280px; 
  --glass: rgba(255, 255, 255, 0.95);
  --border-color: rgba(0, 0, 0, 0.08); 
  --card-bg: #ffffff;
  --input-bg: #ffffff; 
  --bg-muted: #f1f5f9; 
  --transition: all 0.3s ease-in-out;
  --danger-light: rgba(220, 53, 69, 0.1); 
  --warning-light: rgba(255, 193, 7, 0.15);
  --mnt-bg: linear-gradient(90deg, #ff9800, #ffc107); 
  --mnt-text: #000000;
}

[data-bs-theme="dark"] {
  --bg-body: #0f172a; 
  --glass: rgba(30, 41, 59, 0.8);
  --text-main: #f1f5f9; 
  --text-muted: #94a3b8; 
  --border-color: rgba(255, 255, 255, 0.1);
  --card-bg: #1e293b; 
  --input-bg: #1e293b; 
  --bg-muted: #161e2f;
  --primary-light: rgba(67, 97, 238, 0.25); 
  --danger-light: rgba(220, 53, 69, 0.25);
  --warning-light: rgba(255, 193, 7, 0.25); 
  --mnt-bg: linear-gradient(90deg, #332b00, #4d4100);
  --mnt-text: #ffda6a;
}

body { 
  font-family: 'Plus Jakarta Sans', sans-serif; 
  background-color: var(--bg-body) !important; 
  color: var(--text-main) !important; 
  margin: 0; 
  overflow-x: hidden; 
}

.section-item { display: none; }
.active-section { display: block !important; }
.text-main-dynamic { color: var(--primary) !important; font-weight: 800; }
.bg-custom-muted { background-color: var(--bg-muted) !important; }

/* AUTH PAGE */
.auth-page { 
  background: radial-gradient(circle at top right, var(--primary), var(--primary-hover)); 
  min-height: 100vh; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  padding: 20px; 
}
.auth-card { 
  background: var(--glass); 
  backdrop-filter: blur(12px); 
  border-radius: 28px; 
  padding: 2.5rem; 
  width: 100%; 
  max-width: 420px; 
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.3); 
  border: 1px solid var(--border-color); 
}

/* SIDEBAR & LAYOUT */
.sidebar { 
  width: var(--sidebar-w); 
  height: 100vh; 
  position: fixed; 
  background: var(--card-bg); 
  border-right: 1px solid var(--border-color); 
  z-index: 1050; 
  transition: var(--transition); 
  display: flex; 
  flex-direction: column; 
}
.sidebar-overlay { 
  position: fixed; 
  inset: 0; 
  background: rgba(0, 0, 0, 0.5); 
  backdrop-filter: blur(2px); 
  z-index: 1040; 
  display: none; 
}
.nav-link { 
  margin: 4px 15px; 
  padding: 12px 18px; 
  border-radius: 12px; 
  color: var(--text-muted); 
  font-weight: 600; 
  display: flex; 
  align-items: center; 
  gap: 12px; 
  cursor: pointer; 
  transition: var(--transition); 
}
.nav-link:hover { background: var(--bg-muted); color: var(--primary); }
.nav-link.active { background: var(--primary); color: white !important; box-shadow: 0 8px 15px -5px rgba(67, 97, 238, 0.4); }
.content-area { margin-left: var(--sidebar-w); padding: 2rem; transition: var(--transition); }
.card-custom { background: var(--card-bg) !important; border-radius: 20px; border: 1px solid var(--border-color) !important; }

/* MAINTENANCE BANNER */
#maintenanceBanner { 
  background: var(--mnt-bg); 
  overflow: hidden; 
  position: relative; 
  height: 35px; 
  display: flex; 
  align-items: center; 
  z-index: 1100; 
}

.marquee-wrapper { 
  display: inline-block;
  white-space: nowrap; 
  position: absolute; 
  will-change: transform;
  animation: marqueeFast 25s linear infinite;
}

@keyframes marqueeFast { 
  0% { transform: translateX(100vw); } 
  100% { transform: translateX(-100%); } 
}

#bannerContent { 
  font-size: 13px; 
  font-weight: 700; 
  color: var(--mnt-text); 
  text-transform: uppercase; 
  padding-left: 20px;
}

/* LOADING OVERLAY */
.loading-overlay { 
  position: fixed; 
  inset: 0; 
  background: rgba(15, 23, 42, 0.85); 
  backdrop-filter: blur(5px); 
  z-index: 3000; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  opacity: 0; 
  visibility: hidden; 
  transition: opacity 0.3s ease; 
}
.loading-overlay.active { opacity: 1; visibility: visible; }

@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.show { transform: translateX(0); }
  .sidebar.show ~ .sidebar-overlay { display: block; }
  .content-area { margin-left: 0; padding-top: 5.5rem; }
  .mobile-nav { display: flex !important; }
}
.mobile-nav { 
  display: none; 
  position: fixed; 
  top: 0; 
  width: 100%; 
  height: 70px; 
  background: var(--card-bg); 
  z-index: 1030; 
  border-bottom: 1px solid var(--border-color); 
  padding: 0 20px; 
  align-items: center; 
  justify-content: space-between; 
}

.chart-loading-overlay {
  position: absolute;
  inset: 0;
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: 12px;
  opacity: 0.95;
}

.skeleton-box {
  display: inline-block;
  height: 1rem;
  background-color: var(--bg-muted);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.skeleton-box::after {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  transform: translateX(-100%);
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.5) 60%,
    rgba(255, 255, 255, 0)
  );
  animation: shimmer 1.5s infinite;
  content: '';
}

@keyframes shimmer { 100% { transform: translateX(100%); } }

.progress-custom {
  height: 18px;
  border-radius: 10px;
  background-color: var(--bg-muted);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.tiny { font-size: 11px; }

[data-bs-theme="dark"] .modal-content {
  background-color: var(--card-bg) !important;
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}

[data-bs-theme="dark"] .form-control, 
[data-bs-theme="dark"] .form-select {
  background-color: var(--input-bg) !important;
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}

[data-bs-theme="dark"] .form-control:focus, 
[data-bs-theme="dark"] .form-select:focus {
  background-color: var(--input-bg) !important;
  color: var(--text-main) !important;
  border-color: var(--primary) !important;
}

[data-bs-theme="dark"] .table {
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}

[data-bs-theme="dark"] .table-hover tbody tr:hover {
  background-color: var(--bg-muted) !important;
  color: var(--text-main) !important;
}

[data-bs-theme="dark"] .bg-white {
  background-color: var(--card-bg) !important;
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}

[data-bs-theme="dark"] .bg-light {
  background-color: var(--bg-muted) !important;
  color: var(--text-main) !important;
  border-color: var(--border-color) !important;
}