:root {
    --primary-color: #3f51b5; /* Indigo */
    --secondary-color: #ff4081; /* Pink */
    --success-color: #00c853;
    --info-color: #00bcd4;
    --warning-color: #ffab00;
    --danger-color: #ff1744;
    --light-bg: #eceff1;
    --dark-text: #263238;
    --sidebar-width: 250px;
}

body {
    background-color: var(--light-bg);
    font-family: 'Poppins', 'Nunito', sans-serif; /* Changed font */
    color: var(--dark-text);
}

/* Card Styling */
.card {
    border: none;
    border-radius: 1rem; /* More rounded */
    box-shadow: 0 4px 20px 0 rgba(0, 0, 0, 0.05);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-2px);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #f0f0f0;
    font-weight: 700;
    color: var(--primary-color);
    padding: 1.5rem;
    border-radius: 1rem 1rem 0 0 !important;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 2rem; /* Pill buttons */
    padding: 0.5rem 1.5rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.8rem;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #5c6bc0);
    border: none;
    box-shadow: 0 4px 15px rgba(63, 81, 181, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(45deg, #303f9f, #3949ab);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(63, 81, 181, 0.4);
}

.btn-success {
    background: linear-gradient(45deg, var(--success-color), #69f0ae);
    border: none;
    box-shadow: 0 4px 15px rgba(0, 200, 83, 0.3);
}

/* Navbar */
.navbar {
    background: linear-gradient(90deg, #1a237e 0%, #283593 100%) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
}

.navbar-brand {
    color: #fff !important;
    font-weight: 800;
    letter-spacing: 1px;
}

.nav-link {
    color: rgba(255,255,255,0.8) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

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

/* Tables */
.table {
    background-color: #fff;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.table thead th {
    background-color: #f8f9fc;
    border-bottom: 2px solid #e3e6f0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    color: var(--primary-color);
}

/* Select2 Customization for Bootstrap 5 Input Groups */
.input-group .select2-container {
    flex: 1 1 auto;
    width: 1% !important; /* Forces it to share space properly in flex container */
    position: relative;
    z-index: 0;
}

.input-group .select2-container .select2-selection {
    height: 100%;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    display: flex;
    align-items: center;
}

.input-group .select2-container .select2-selection__rendered {
    padding-left: 12px;
}

.input-group .select2-container--bootstrap-5 .select2-selection {
    border: 1px solid #ced4da;
}

/* Ensure focus ring matches Bootstrap */
.select2-container--bootstrap-5.select2-container--focus .select2-selection, 
.select2-container--bootstrap-5.select2-container--open .select2-selection {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}