/* Modern CSS Reset & Variables */
:root {
  --primary-color: #45A049; /* Darker Custom Green */
  --primary-hover: #45A049; /* No color change on hover */
  --success-color: #10B981; /* Emerald 500 */
  --danger-color: #EF4444; /* Red 500 */
  --info-color: #3B82F6; /* Blue 500 */
  --warning-color: #F59E0B; /* Amber 500 */
  --bg-gradient: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --text-main: #1F2937;
  --text-muted: #6B7280;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-gradient);
  color: var(--text-main);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background-attachment: fixed;
}

/* Glassmorphism Classes */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.12);
}

.glass-nav {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* Typography & Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.025em;
}

.display-6 {
  font-weight: 800;
  letter-spacing: -0.05em;
}

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(69, 160, 73, 0.3), 0 2px 4px -1px rgba(69, 160, 73, 0.06);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(69, 160, 73, 0.4), 0 4px 6px -2px rgba(69, 160, 73, 0.1);
}

/* Inputs & Forms */
.form-control, .form-select {
  border-radius: 8px;
  border: 1px solid #D1D5DB;
  padding: 0.6rem 1rem;
  background-color: rgba(255,255,255,0.9);
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(69, 160, 73, 0.2);
  background-color: #fff;
}

/* Custom Table */
.table {
  --bs-table-bg: transparent;
}
.table-hover tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.6);
  transform: scale(1.002);
  transition: transform 0.2s;
}

.table th {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  border-bottom: 2px solid rgba(0,0,0,0.05);
}

/* Badges */
.badge {
  padding: 0.4em 0.8em;
  border-radius: 6px;
  font-weight: 600;
  letter-spacing: 0.025em;
}

.bg-success { background-color: var(--success-color) !important; color: white; }
.bg-danger { background-color: var(--danger-color) !important; color: white; }
.bg-primary { background-color: var(--primary-color) !important; color: white; }
.bg-info { background-color: var(--info-color) !important; color: white; }

/* Dashboard Cards Overrides */
.card-header {
  background: transparent;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding: 1.25rem 1.5rem;
}
.card-body {
  padding: 1.5rem;
}

.card.border-primary, .card.border-success, .card.border-danger, .card.border-info {
  border: 1px solid var(--glass-border) !important;
}

/* Nav Tabs */
.nav-tabs {
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.nav-tabs .nav-link {
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  padding: 1rem 1.5rem;
  transition: all 0.2s;
}
.nav-tabs .nav-link:hover {
  color: var(--primary-color);
  border-color: transparent;
}
.nav-tabs .nav-link.active {
  background: transparent;
  color: var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
}

/* Animation utilities */
.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Sidebar structure */
#wrapper {
  display: flex;
  width: 100%;
}

#sidebar {
  width: 260px;
  min-height: 100vh;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  border-right: 1px solid var(--glass-border);
  box-shadow: 4px 0 15px rgba(0,0,0,0.03);
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

#page-content-wrapper {
  flex-grow: 1;
  margin-left: 260px;
  padding: 2rem;
  width: calc(100% - 260px);
}

.sidebar-heading {
  padding: 1.5rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.05em;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.list-group-item {
  background: transparent;
  border: none;
  padding: 1rem 1.5rem;
  color: var(--text-muted);
  font-weight: 600;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
}

.list-group-item:hover, .list-group-item.active {
  color: var(--primary-color);
  background: rgba(69, 160, 73, 0.08);
  border-right: 4px solid var(--primary-color);
}
.list-group-item.active {
  background: rgba(69, 160, 73, 0.12);
}

.list-group-item i {
  font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 768px) {
  #sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  #sidebar.toggled {
    transform: translateX(0);
  }
  #page-content-wrapper {
    margin-left: 0;
    width: 100%;
    padding: 1rem;
  }
}