:root {
    --primary-color: #0d6efd;
    --sidebar-width: 250px;
    --border-radius: 0.5rem;
    --light-gray: #f8f9fa;
    --text-color: #495057;
}

body {
    font-family: 'Kanit', sans-serif;
    background-color: var(--light-gray);
    color: var(--text-color);
}

#wrapper {
    display: flex;
    transition: all 0.3s ease;
}

#sidebar-wrapper {
    width: var(--sidebar-width);
    background-color: #ffffff;
    border-right: 1px solid #dee2e6;
    margin-left: 0;
    transition: margin-left 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: calc(-1 * var(--sidebar-width));
}

.sidebar-heading {
    padding: 1.25rem 1rem;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    border-bottom: 1px solid #dee2e6;
    color: var(--primary-color);
}

.list-group-item {
    border: 0;
    border-radius: 0;
    padding: 1rem 1.5rem;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.list-group-item i {
    margin-right: 0.75rem;
}

.list-group-item:hover,
.list-group-item:focus {
    background-color: var(--light-gray);
    color: var(--primary-color);
    transform: translateX(4px);
}

.list-group-item.active {
    background-color: var(--light-gray);
    color: var(--primary-color);
    font-weight: 700;
    border-left: 4px solid var(--primary-color);
}

.sidebar-footer {
    margin-top: auto;
    padding: 1rem;
    border-top: 1px solid #dee2e6;
}

.user-avatar {
    position: relative;
}

.user-status-dot {
    width: 10px;
    height: 10px;
    background-color: #198754;
    border-radius: 50%;
    position: absolute;
    bottom: 5px;
    right: 0;
    border: 2px solid white;
}

.user-info {
    line-height: 1.2;
}

.user-name {
    font-weight: 600;
    display: block;
}

.user-logout {
    font-size: 0.8rem;
    text-decoration: none;
}

#page-content-wrapper {
    flex-grow: 1;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.075);
}