/* 图来 - 后台样式 */

#wrapper {
    overflow-x: hidden;
    min-height: 100vh;
}

#sidebar-wrapper {
    min-height: 100vh;
    width: 250px;
    margin-left: 0;
    transition: margin 0.25s ease-out;
}

#sidebar-wrapper .sidebar-heading {
    font-size: 1.2rem;
    font-weight: 600;
}

#sidebar-wrapper .list-group {
    width: 250px;
}

#page-content-wrapper {
    min-width: 100vw;
    flex: 1;
    display: flex;
    flex-direction: column;
}

#page-content-wrapper .container-fluid {
    flex: 1;
}

body.sb-sidenav-toggled #wrapper #sidebar-wrapper {
    margin-left: -250px;
}

@media (min-width: 768px) {
    #sidebar-wrapper {
        margin-left: 0;
    }

    #page-content-wrapper {
        min-width: 0;
        width: 100%;
    }

    body.sb-sidenav-toggled #wrapper #sidebar-wrapper {
        margin-left: -250px;
    }
}

.stat-card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
    transition: transform 0.2s;
}

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

.stat-card .card-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6c757d;
}

.stat-card .card-text {
    font-size: 1.75rem;
    font-weight: 700;
}

.table th {
    font-weight: 600;
    background-color: #f8f9fa;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    border: none;
    border-radius: 1rem;
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.175);
}

.thumb-preview {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 0.375rem;
    border: 1px solid #dee2e6;
}