:root {
    --primary-color: #4e73df;
    --primary-color-2: #224abe;
    --primary-hover: #2e59d9;
    --primary-hover-2: #2653d4;
    --primary-rgb: 78, 115, 223;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --light-color: #f8f9fc;
    --dark-color: #5a5c69;
    --body-bg: #f8f9fc;
    --text-color: #5a5c69;
    --heading-color: #4e73df;
    --card-header-bg: #f8f9fc;
    --card-header-color: #4e73df;
    --breadcrumb-bg: #ffffff;
    --footer-bg: #ffffff;
    --card-shadow: 0 1px 2px rgba(2, 6, 23, 0.08), 0 10px 24px rgba(2, 6, 23, 0.08);
    --shadow-sm: 0 1px 2px rgba(2, 6, 23, 0.08);
    --shadow-md: 0 10px 24px rgba(2, 6, 23, 0.12);
    --shadow-lg: 0 18px 40px rgba(2, 6, 23, 0.16);
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --border-color: rgba(15, 23, 42, 0.10);
}

body {
    background-color: var(--body-bg);
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 700;
}

.bg-gradient-primary {
    background-color: var(--primary-color);
    background-image: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-2) 100%);
    background-size: cover;
}

.navbar {
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(var(--primary-rgb), 0.22);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    font-weight: 800;
    color: var(--card-header-color);
    padding: 1rem 1.25rem;
}

.btn-primary {
    background-image: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-2) 100%);
    border-color: rgba(255, 255, 255, 0.0);
    box-shadow: 0 10px 18px rgba(var(--primary-rgb), 0.20);
}

.btn-primary:hover {
    background-image: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-hover-2) 100%);
    box-shadow: 0 14px 26px rgba(var(--primary-rgb), 0.26);
}

.btn, .form-control, .form-select, .input-group-text, .dropdown-menu, .alert {
    border-radius: var(--radius-md);
}

.btn {
    font-weight: 800;
    padding: 0.55rem 0.95rem;
}

.btn:focus, .btn:focus-visible {
    box-shadow: 0 0 0 0.25rem rgba(var(--primary-rgb), 0.22) !important;
}

.form-control, .form-select, .input-group-text {
    border-color: var(--border-color);
}

.form-control:focus, .form-select:focus {
    border-color: rgba(var(--primary-rgb), 0.65);
    box-shadow: 0 0 0 0.25rem rgba(var(--primary-rgb), 0.18);
}

.dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: 12px;
    font-weight: 700;
}

.dropdown-item:active {
    background-color: rgba(var(--primary-rgb), 0.14);
    color: inherit;
}

.table {
    color: var(--text-color);
}

.table thead th {
    font-weight: 900;
    letter-spacing: 0.02em;
}

.table-hover tbody tr:hover {
    background-color: rgba(var(--primary-rgb), 0.06);
}

.table-bordered > :not(caption) > * {
    border-color: var(--border-color);
}

.footer {
    background-color: var(--footer-bg) !important;
    box-shadow: 0 -8px 24px rgba(2, 6, 23, 0.08);
}

/* Custom Login Page Styles */
.bg-login-image {
    background: url('https://images.unsplash.com/photo-1497633762265-9d179a990aa6?ixlib=rb-1.2.1&auto=format&fit=crop&w=1952&q=80');
    background-position: center;
    background-size: cover;
}

.login-card {
    border: 0;
    border-radius: 22px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.login-form-container {
    padding: 3rem;
}

/* Dashboard Widgets */
.border-left-primary { border-left: 0.25rem solid #4e73df !important; }
.border-left-success { border-left: 0.25rem solid #1cc88a !important; }
.border-left-info { border-left: 0.25rem solid #36b9cc !important; }
.border-left-warning { border-left: 0.25rem solid #f6c23e !important; }

.breadcrumb {
    background-color: var(--breadcrumb-bg);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}