:root {
  --sidebar-width: 268px;
  --burgundy: #6B1C23;
  --burgundy-dark: #4A1218;
  --burgundy-deep: #2D0A0E;
  --burgundy-mid: #722F37;
  --burgundy-light: #9E3A47;
  --burgundy-soft: #C45C6A;
  --burgundy-pale: #F3E8EA;
  --burgundy-border: #E8D4D7;
  --gold-accent: #C9A962;
  --primary: var(--burgundy);
  --primary-dark: var(--burgundy-dark);
  --primary-light: var(--burgundy-light);
  --bs-primary: #6B1C23;
  --bs-primary-rgb: 107, 28, 35;
  --bg: linear-gradient(160deg, #faf6f6 0%, #f0e6e8 50%, #ebe0e2 100%);
  --bg-solid: #f5efef;
  --sidebar-bg: linear-gradient(180deg, #2D0A0E 0%, #4A1218 55%, #6B1C23 100%);
  --card-shadow: 0 8px 24px -6px rgba(74, 18, 24, 0.14);
  --card-shadow-hover: 0 12px 32px -8px rgba(74, 18, 24, 0.2);
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', 'SF Pro Display', system-ui, sans-serif;
  background: var(--bg-solid);
  background-image: var(--bg);
  min-height: 100vh;
  color: #2a1a1c;
}

/* --- Buttons --- */
.btn-primary {
  --bs-btn-bg: var(--burgundy);
  --bs-btn-border-color: var(--burgundy);
  --bs-btn-hover-bg: var(--burgundy-dark);
  --bs-btn-hover-border-color: var(--burgundy-dark);
  --bs-btn-active-bg: var(--burgundy-deep);
  --bs-btn-focus-shadow-rgb: 107, 28, 35;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.4rem 1rem;
}

.btn-accent {
  background: linear-gradient(135deg, var(--burgundy-light), var(--burgundy));
  border: none;
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.4rem 1rem;
  box-shadow: 0 4px 12px rgba(107, 28, 35, 0.35);
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--burgundy), var(--burgundy-dark));
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(107, 28, 35, 0.4);
}

.btn-outline-burgundy {
  color: var(--burgundy);
  border: 1.5px solid var(--burgundy-border);
  background: #fff;
  border-radius: 8px;
}

.btn-outline-burgundy:hover {
  background: var(--burgundy-pale);
  border-color: var(--burgundy-light);
  color: var(--burgundy-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--burgundy);
  --bs-btn-border-color: var(--burgundy-light);
  --bs-btn-hover-bg: var(--burgundy);
  --bs-btn-hover-border-color: var(--burgundy);
  border-radius: 8px;
}

.text-primary { color: var(--burgundy) !important; }

/* --- Forms --- */
.form-control:focus,
.form-select:focus {
  border-color: var(--burgundy-soft);
  box-shadow: 0 0 0 0.2rem rgba(107, 28, 35, 0.15);
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--burgundy-dark);
  margin-bottom: 0.25rem;
}

.form-control,
.form-select {
  border-radius: 8px;
  border-color: var(--burgundy-border);
}

/* --- Login --- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #2D0A0E 0%, #4A1218 35%, #6B1C23 70%, #8B3A42 100%);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 80%, rgba(201, 169, 98, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.login-card {
  width: 100%;
  max-width: 440px;
  border: none;
  border-radius: 20px;
  box-shadow: 0 32px 64px -16px rgba(0, 0, 0, 0.45);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold-accent), var(--burgundy-soft), var(--gold-accent));
}

.login-card .card-body {
  background: #fff;
}

.login-card h4 {
  color: var(--burgundy-dark);
  font-weight: 700;
}

.login-card .alert-info {
  background: var(--burgundy-pale);
  border-color: var(--burgundy-border);
  color: var(--burgundy-dark);
}

.login-card a {
  color: var(--burgundy-light);
  font-weight: 500;
}

.login-card a:hover {
  color: var(--burgundy);
}

.login-icon-wrap {
  width: 72px;
  height: 72px;
  margin: 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--burgundy-pale), #fff);
  border: 2px solid var(--burgundy-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-icon-wrap i {
  font-size: 2.25rem;
  color: var(--burgundy);
}

/* --- Layout --- */
.app-wrapper { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: #f8ecee;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 1000;
  transition: transform 0.3s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px rgba(45, 10, 14, 0.25);
}

.sidebar-brand {
  padding: 1.35rem 1.25rem;
  font-weight: 700;
  font-size: 1.15rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  letter-spacing: 0.02em;
}

.sidebar-brand i {
  color: var(--gold-accent);
  margin-right: 0.35rem;
}

.sidebar .nav-link {
  color: rgba(248, 236, 238, 0.75);
  padding: 0.8rem 1.25rem;
  margin: 0.15rem 0.65rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.sidebar .nav-link.active {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.08));
  color: #fff;
  box-shadow: inset 3px 0 0 var(--gold-accent);
}

.sidebar .btn-logout {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
  border-radius: 8px;
  font-weight: 500;
}

.sidebar .btn-logout:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 1.5rem 1.75rem;
  width: calc(100% - var(--sidebar-width));
}

.top-bar {
  background: #fff;
  border-radius: 14px;
  padding: 1rem 1.35rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  border: 1px solid var(--burgundy-border);
  border-left: 5px solid var(--burgundy);
}

.top-bar h5 {
  color: var(--burgundy-dark);
  font-weight: 700;
}

.stat-card {
  background: #fff;
  border-radius: 14px;
  padding: 1.35rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--burgundy-border);
  border-top: 3px solid var(--burgundy);
  transition: box-shadow 0.2s, transform 0.2s;
}

.stat-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

.stat-card .text-muted {
  color: #8a6a6e !important;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--burgundy);
}

.content-card {
  background: #fff;
  border-radius: 14px;
  padding: 1.35rem;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--burgundy-border);
}

.filter-panel {
  background: linear-gradient(180deg, #fff 0%, #fdfafa 100%);
}

.filter-panel-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--burgundy);
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--burgundy-border);
}

.filter-panel-title i {
  margin-right: 0.4rem;
}

/* --- Tables --- */
.table {
  --bs-table-hover-bg: var(--burgundy-pale);
}

.table thead th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--burgundy-dark);
  background: var(--burgundy-pale);
  border-bottom: 2px solid var(--burgundy-border);
  padding: 0.85rem 0.75rem;
}

.table tbody td {
  vertical-align: middle;
  padding: 0.75rem;
}

.chart-container { position: relative; height: 280px; }

.toast-container { z-index: 9999; }

/* --- Tabs --- */
.nav-tabs {
  border-bottom-color: var(--burgundy-border);
}

.nav-tabs .nav-link {
  color: #6b5a5c;
  border-radius: 8px 8px 0 0;
  font-weight: 500;
}

.nav-tabs .nav-link.active {
  color: var(--burgundy);
  background: #fff;
  border-color: var(--burgundy-border) var(--burgundy-border) #fff;
  font-weight: 700;
}

.nav-tabs .nav-link:hover:not(.active) {
  color: var(--burgundy-light);
  border-color: transparent;
}

.badge-branch {
  background: linear-gradient(135deg, var(--burgundy-pale), #fff);
  color: var(--burgundy-dark);
  border: 1px solid var(--burgundy-border);
  font-weight: 600;
  padding: 0.35em 0.65em;
}

.badge.bg-primary {
  background: var(--burgundy) !important;
}

.badge.bg-danger {
  background: var(--burgundy-dark) !important;
}

.modal-header {
  background: var(--burgundy-pale);
  border-bottom: 1px solid var(--burgundy-border);
}

.modal-header .modal-title {
  color: var(--burgundy-dark);
  font-weight: 700;
}

.modal-footer {
  border-top: 1px solid var(--burgundy-border);
}

.pagination .page-link {
  color: var(--burgundy);
  border-color: var(--burgundy-border);
}

.pagination .page-item.active .page-link {
  background: var(--burgundy);
  border-color: var(--burgundy);
}

.pagination .page-link:hover {
  background: var(--burgundy-pale);
  color: var(--burgundy-dark);
}

@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.show { transform: translateX(0); }
  .main-content { margin-left: 0; width: 100%; padding: 1rem; }
}

@media print {
  .sidebar, .top-bar button, .btn { display: none !important; }
  .main-content { margin-left: 0; width: 100%; }
}

/* --- Footer --- */
.app-footer {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--burgundy-border);
  border-left: 5px solid var(--gold-accent);
  position: relative;
  overflow: hidden;
}
.app-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.03) 0%, rgba(107, 28, 35, 0.03) 100%);
  pointer-events: none;
}
.footer-logo {
  filter: drop-shadow(0 2px 4px rgba(107, 28, 35, 0.12));
}

/* --- Mobile Spacing & Responsiveness Enhancements --- */
@media (max-width: 768px) {
  .main-content {
    padding: 0.75rem !important;
  }
  .content-card {
    padding: 1rem !important;
    border-radius: 10px;
  }
  .top-bar {
    padding: 0.75rem 1rem !important;
    margin-bottom: 1rem !important;
    border-radius: 10px;
  }
  .app-footer {
    padding: 1rem !important;
    margin-top: 1.5rem !important;
    border-radius: 10px;
  }
  .table tbody td {
    padding: 0.6rem 0.4rem !important;
    font-size: 0.85rem;
  }
  .table thead th {
    padding: 0.6rem 0.4rem !important;
    font-size: 0.75rem !important;
  }
  .btn-sm {
    padding: 0.25rem 0.5rem !important;
    font-size: 0.8rem !important;
    border-radius: 6px;
  }
  .badge {
    font-size: 0.75rem !important;
  }
}

/* --- Collapsible Filters Transition --- */
.collapse-transition {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* --- Sidebar Backdrop Overlay on Mobile --- */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(45, 10, 14, 0.45);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.sidebar-backdrop.show {
  opacity: 1;
  visibility: visible;
}
.sidebar {
  z-index: 1001; /* Ensure sidebar is above backdrop */
}

/* --- Custom Scrollbar for Premium Feel --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(107, 28, 35, 0.25);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(107, 28, 35, 0.45);
}