/* --- CUSTOM MODAL STYLE (GAS LONG HOA) --- */
.glh-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none; /* Mặc định ẩn */
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(2px);
    animation: fadeIn 0.2s ease-out;
}

.glh-modal-container {
    background: #fff;
    width: 450px;
    max-width: 90%;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transform: translateY(20px);
    animation: slideUp 0.3s ease-out forwards;
    display: flex;
    flex-direction: column;
}

.glh-modal-header {
    background: #0d47a1; /* Màu xanh chủ đạo */
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.glh-modal-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.glh-close-btn {
    cursor: pointer;
    font-size: 24px;
    font-weight: bold;
    opacity: 0.8;
}

.glh-close-btn:hover {
    opacity: 1;
}

.glh-modal-body {
    padding: 20px;
}

.glh-modal-body p {
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}

.glh-textarea {
    width: 100%;
    min-height: 100px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
}

.glh-textarea:focus {
    border-color: #0d47a1;
}

.glh-error-msg {
    color: #d32f2f;
    font-size: 13px;
    margin-top: 5px;
    display: none;
}

.glh-modal-footer {
    padding: 15px 20px;
    background: #f5f5f5;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid #eee;
}

.glh-btn {
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: background 0.2s;
}

.glh-btn-cancel {
    background: #e0e0e0;
    color: #333;
}

.glh-btn-cancel:hover {
    background: #d5d5d5;
}

.glh-btn-confirm {
    background: #d32f2f; /* Màu đỏ cảnh báo */
    color: white;
    display: flex;
    align-items: center;
    gap: 5px;
}

.glh-btn-confirm:hover {
    background: #b71c1c;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}