/* Lỗi form Django (ul.errorlist) hiển thị như invalid-feedback của Bootstrap, ô lỗi viền đỏ. */
ul.errorlist {
    list-style: none;
    margin: 0.3rem 0 0;
    padding: 0;
    color: #dc3545;
    font-size: 0.85em;
    font-weight: 500;
}
ul.errorlist li + li { margin-top: 0.15rem; }
ul.errorlist.nonfield,
ul.errorlist.nonform {
    margin: 0 0 0.75rem;
    padding: 0.55rem 0.8rem;
    border: 1px solid #fecaca;
    border-radius: 10px;
    background: #fef2f2;
}
ul.errorlist li::before {
    content: "\26A0";
    margin-right: 0.35rem;
}
.form-control[aria-invalid="true"],
.form-select[aria-invalid="true"] {
    border-color: #dc3545;
}
.form-control[aria-invalid="true"]:focus,
.form-select[aria-invalid="true"]:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.2);
}

/* Ô chọn tệp: ẩn chữ "Choose File / No file chosen" của trình duyệt, dùng nhãn tiếng Việt. */
.eapp-file-input { position: relative; }
.eapp-file-input input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.eapp-file-input .eapp-file-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--bs-border-color, #dee2e6);
    border-radius: var(--bs-border-radius, 0.375rem);
    background: #fff;
    color: #475569;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.eapp-file-input .eapp-file-btn {
    flex: none;
    padding: 0.1rem 0.6rem;
    border-radius: 6px;
    background: #f1f5f9;
    color: #0f172a;
    font-weight: 600;
}
.eapp-file-input:focus-within .eapp-file-label {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}
.d-flex > .eapp-file-input { flex: 1 1 auto; min-width: 0; }