:root {
    --primary-dark: #0e162a;
    --primary-light: #1a2840;
    --text-light: #6c757d;
    --border-light: #e9ecef;
    --background-light: #f8f9fa;
    --white: #ffffff;
}

body {
    background-color: var(--background-light);
    color: #333;
}

/* Logo styling */
.logo-container img {
    max-height: 40px;
    width: auto;
}

/* Navigation */
.navbar {
    background-color: var(--primary-dark) !important;
    border-bottom: 3px solid var(--primary-light);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 600;
    color: var(--white) !important;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    border-radius: 6px;
    margin: 0 0.25rem;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background-color: var(--primary-light);
    color: var(--white) !important;
}

/* Cards */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 20px rgba(14, 22, 42, 0.08);
    background-color: var(--white);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 25px rgba(14, 22, 42, 0.12);
}

.card-header {
    background-color: var(--white);
    border-bottom: 2px solid var(--border-light);
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Stats cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
}

.stats-card.bg-warning {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%) !important;
}

.stats-card.bg-success {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%) !important;
}

.stats-card.bg-info {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%) !important;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    border-radius: 8px;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--primary-dark);
    border-color: var(--primary-dark);
    border-radius: 8px;
    font-weight: 500;
}

.btn-outline-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
}

/* Forms */
.form-control {
    border-radius: 8px;
    border: 2px solid var(--border-light);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-dark);
    box-shadow: 0 0 0 0.2rem rgba(14, 22, 42, 0.1);
}

/* Tables */
.table {
    background-color: var(--white);
}

.table th {
    border-top: none;
    border-bottom: 2px solid var(--border-light);
    color: var(--primary-dark);
    font-weight: 600;
    padding: 1rem;
}

.table td {
    padding: 1rem;
    border-top: 1px solid var(--border-light);
}

/* Badges */
.badge {
    border-radius: 6px;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
}

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

/* Auth container */
.auth-container {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
}

.auth-card {
    margin: 5rem auto;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(14, 22, 42, 0.3);
    border: none;
}

.auth-card .card-body {
    padding: 2.5rem;
}

/* Main content */
.main-content {
    padding: 2rem 0;
}

/* Page header */
.page-header {
    background-color: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 20px rgba(14, 22, 42, 0.06);
}

/* Dropdown */
.dropdown-menu {
    border-radius: 10px;
    border: none;
    box-shadow: 0 10px 30px rgba(14, 22, 42, 0.15);
}

.dropdown-item {
    padding: 0.75rem 1.25rem;
    transition: background-color 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--background-light);
    color: var(--primary-dark);
}

/* Responsive */
@media (max-width: 768px) {
    .main-content {
        padding: 1rem 0;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .auth-card .card-body {
        padding: 2rem;
    }
}